NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY

• Citation: 40 CFR Part 471
• Sections: 61

§ 471.01 Applicability.

(a) This part applies to discharges of pollutants to waters of the United States and introduction of pollutants into a publicly owned treatment works from the forming of nonferrous metals (including nonferrous metal alloys), except beryllium, copper, and aluminum and their alloys. Aluminum alloys are defined as any alloy in which aluminum is the major constituent in percent by weight. Copper alloys are defined as any alloy in which copper is the major constituent in percent by weight except when copper is alloyed with precious metals. Any copper-precious metal alloy containing 30 percent or greater precious metal is considered a precious metal alloy for the purposes of this part. Beryllium alloys are any alloy in which beryllium is present at 0.1 percent or greater. This part applies to:

(1) Forming operations, including rolling (both hot and cold), extruding, forging, drawing, swaging, cladding, and tube reducing, and

(2) Ancillary operations performed as an integral part of the forming of these metals, including casting for subsequent forming, heat treatment, surface treatment, alkaline cleaning, solvent degreasing, product testing, surface coating, sawing, grinding, tumbling, burnishing, and wet air pollution control.

(b) This part also applies to discharges of pollutants to waters of the United States and introduction of pollutants into a publicly owned treatment works from mechanical metal powder production operations, forming of parts from metal powders, and associated ancillary operations (listed in paragraph (a)(2) of this section) of:

(1) Iron, copper, and aluminum, and their alloys; and

(2) The nonferrous metals and their alloys described in paragraph (a) of this section. This part does not regulate the production of metal powders by chemical means such as precipitation. The production of metal powder as the final step in refining metal is regulated under the Nonferrous Metals Manufacturing Point Source Category regulation, 40 CFR part 421.

(c) Surface treatment includes any chemical or electrochemical treatment applied to the surface of the metal. For the purposes of this regulation, surface treatment of metals is considered to be an integral part of the forming of metals whenever it is performed at the same plant site at which the metals are formed. Such surface treatment operations are not regulated under the Electroplating or Metal Finishing Point Source Category regulations, 40 CFR part 413 or 433, respectively.

(d) Casting is covered by this part when it is performed as an integral part of the metal forming process and takes place at the same plant site at which metals are formed. Such casting will not be regulated under the provisions of Metal Molding and Casting Point Source Category regulations, 40 CFR part 464.

(e) This part does not apply to the forming of the metals cadmium, chromium, gallium, germanium, indium, lithium, manganese, neodymium, or praseodymium.

§ 471.02 General definitions.

In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part:

(a) “Nonferrous metal” is any pure metal other than iron or any metal alloy for which a metal other than iron is its major constituent in percent by weight.

(b) “Forming” is a set of manufacturing operations in which metals and alloys are made into semifinished products by hot or cold working.

(c) “Alkaline cleaning” uses a solution (bath), usually detergent, to remove lard, oil, and other such compounds from a metal surface. Alkaline cleaning is usually followed by a water rinse. The rinse may consist of single or multiple stage rinsing. For the purposes of this part, an alkaline cleaning operation is defined as a bath followed by a rinse, regardless of the number of rinse stages. Each alkaline cleaning bath and rinse combination is entitled to a discharge allowance.

(d) “Atomization” is the process in which a stream of water or gas impinges upon a molten metal stream, breaking it into droplets which solidify as powder particles.

(e) “Burnishing” is a surface finishing process in which minute surface irregularities are displaced rather than removed.

(f) “Casting” is pouring molten metal into a mold to produce an object of desired shape.

(g) “Cladding” or “metal cladding” is the art of producing a composite metal containing two or more layers that have been metallurgically bonded together by roll bonding (co-rolling), solder application (or brazing), or explosion bonding.

(h) “Contact cooling water” is any wastewater which contacts the metal workpiece or the raw materials used in forming metals for the purpose of removing heat from the metal.

(i) “Continuous casting” is the production of sheet, rod, or other long shapes by solidifying the metal while it is being poured through an open-ended mold.

(j) “Degreasing” is the removal of oils and greases from the surface of the metal workpiece. This process can be accomplished with detergents as in alkaline cleaning or by the use of solvents.

(k) “Direct chill casting” is the pouring of molten nonferrous metal into a water-cooled mold. Contact cooling water is sprayed onto the metal as it is dropped into the mold, and the metal ingot falls into a water bath at the end of the casting process.

(l) “Drawing” is the process of pulling a metal through a die or succession of dies to reduce the metal's diameter or alter its cross-sectional shape.

(m) “Dye penetrant testing” is a nondestructive method for finding discontinuities that are open to the surface of the metal. A dye is applied to the surface of metal and the excess is rinsed off. Dye that penetrates surface discontinuities will not be rinsed away thus marking these discontinuities.

(n) “Emulsions” are stable dispersions of two immiscible liquids. In the Nonferrous Metals Forming and Metal Powders Point Source category, this is usually an oil and water mixture.

(o) “Electrocoating” is the electrodeposition of a metallic or nonmetallic coating onto the surface of a workpiece.

(p) “Extrusion” is the application of pressure to a billet of metal, forcing the metal to flow through a die orifice.

(q) “Forging” is deforming metal, usually hot, with compressive force into desired shapes, with or without dies. Where dies are used, the metal is forced to take the shape of the die.

(r) “Grinding” is the process of removing stock from a workpiece by the use of a tool consisting of abrasive grains held by a rigid or semi-rigid grinder. Grinding includes surface finishing, sanding, and slicing.

(s) “Heat treatment” is the application of heat of specified temperature and duration to change the physical properties of the metal.

(t) “Hot pressing” is forming a powder metallurgy compact at a temperature high enough to effect concurrent sintering.

(u) “Hydrotesting” is the testing of piping or tubing by filling with water and pressurizing to test for integrity.

(v) “Impregnation” is the process of filling pores of a formed powder part, usually with a liquid such as a lubricant, or mixing particles of a nonmetallic substance in a matrix of metal powder.

(w) “In-process control technology” is the conservation of chemicals and water throughout the production operations to reduce the amount of wastewater to be discharged.

(x) “Metal powder production” operations are mechanical process operations which convert metal to a finely divided form.

(y) “Milling” is the mechanical treatment of a nonferrous metal to produce powder, or to coat one component of a powder mixture with another.

(z) “Neat oil” is a pure oil with no or few impurities added. In nonferrous metals forming, its use is mostly as a lubricant.

(aa) “Powder forming” includes forming and compressing powder into a fully dense finished shape, and is usually done within closed dies.

(bb) “Precious metals” include gold, platinum, palladium, and silver and their alloys. Any alloy containing 30 or greater percent by weight of precious metals is considered a precious metal alloy.

(cc) “Product testing” includes operations such as dye penetrant testing, hydrotesting, and ultrasonic testing.

(dd) “Refractory metals” includes the metals of columbium, tantalum, molybdenum, rhenium, tungsten and vanadium and their alloys.

(ee) “Rolling” is the reduction in thickness or diameter of a workpiece by passing it between lubricated steel rollers.

(ff) “Roll bonding” is the process by which a permanent bond is created between two metals by rolling under high pressure in a bonding mill (co-rolling).

(gg) “Sawing” is cutting a workpiece with a band, blade, or circular disc having teeth.

(hh) “Shot casting” is the production of shot by pouring molten metal in finely divided streams to form spherical particles.

(ii) “Stationary casting” is the pouring of molten metal into molds and allowing the metal to cool.

(jj) “Surface treatment” is a chemical or electrochemical treatment applied to the surface of a metal. Such treatments include pickling, etching, conversion coating, phosphating, and chromating. Surface treatment baths are usually followed by a water rinse. The rinse may consist of single or multiple stage rinsing. For the purposes of this part, a surface treatment operation is defined as a bath followed by a rinse, regardless of the number of stages. Each surface treatment bath, rinse combination is entitled to discharge allowance.

(kk) “Swaging” is a process in which a solid point is formed at the end of a tube, rod, or bar by the repeated blows of one or more pairs of opposing dies.

(ll) “Tube reducing” is an operation which reduces the diameter and wall thickness of tubing with a mandrel and a pair of rolls with tapered grooves.

(mm) “Tumbling” or “barrel finishing” is an operation in which castings, forgings, or parts pressed from metal powder are rotated in a barrel with ceramic or metal slugs or abrasives to remove scale, fins, or burrs. It may be done dry or with an aqueous solution.

(nn) “Ultrasonic testing” is a nondestructive test which applies sound, at a frequency above about 20 HJz, to metal, which has been immersed in liquid (usually water) to locate inhomogeneities or structural discontinuities.

(oo) “Wet air pollution control scrubbers” are air pollution control devices used to remove particulates and fumes from air by entraining the pollutants in a water spray.

(pp) “Grab sample” is a single sample which is collected at a time and place most representative of total discharge.

(qq) “Composite sample” is a sample composed of no less than eight grab samples taken over the compositing period.

(rr) A “flow proportional composite sample” is composed of grab samples collected continuously or discretely in proportion to the total flow at time of collection or to the total flow since collection of the previous grab sample. The grab volume or frequency of grab collection may be varied in proportion to flow.

(ss) The term “control authority” is defined as the POTW if it has an approved pretreatment program; in the absence of such a program, the NPDES State if it has an approved pretreatment program or EPA if the State does not have an approved program.

(tt) “Continuous operations” means that the industrial user introduces regulated wastewaters to the POTW throughout the operating hours of the facility, except for infrequent shutdowns for maintenance, process changes, or other similar activities.

(uu) “Intermittent operations” means the industrial users does not have a continuous operation.

(vv) The term “off-kg (off-lb)” means the mass of metal or metal alloy removed from a forming operation at the end of a process cycle for transfer to a different machine or process.

§ 471.03 Compliance date for PSES.

The compliance date for PSES under this regulation is August 23, 1988.

§ 471.10 Applicability; description of the lead-tin-bismuth forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the lead-tin-bismuth forming subcategory.

§ 471.11 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent emulsions.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsions

Antimony

0.068

0.030

Lead

0.010

0.005

Oil and grease

0.468

0.281

TSS

0.960

0.457

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(b) Rolling spent soap solutions.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pound) of lead-tin-bismuth rolled with soap solutions

Antimony

0.125

0.055

Lead

0.019

0.009

Oil and grease

0.860

0.520

TSS

1.80

0.840

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent neat oils—subpart A—BPT. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions

Antimony

0.076

0.034

Lead

0.011

0.005

Oil and grease

0.526

0.316

TSS

1.08

0.513

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Drawing spent soap solutions.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions

Antimony

0.022

0.010

Lead

0.003

0.002

Oil and grease

0.149

0.090

TSS

0.306

0.146

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Extrusion press and solution heat treatment contact cooling water.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds of lead-tin-bismuth heat treated

Antimony

4.14

1.850

Lead

0.605

0.288

Oil and grease

28.80

17.30

TSS

59.10

28.10

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Extrusion press hydraulic fluid leakage.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth extruded

Antimony

0.158

0.071

Lead

0.023

0.011

Oil and grease

1.10

0.660

TSS

2.26

1.07

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Continuous strip casting contact cooling water.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony

0.003

0.001

Lead

0.0004

0.0002

Oil and grease

0.020

0.012

TSS

0.041

0.020

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth ingot cast by the sem-continuous method

Antimony

0.085

0.038

Lead

0.013

0.006

Oil and grease

0.588

0.353

TSS

1.21

0.574

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Shot casting contact cooling water.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast

Antimony

0.107

0.048

Lead

0.016

0.008

Oil and grease

0.746

0.448

TSS

1.53

0.728

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed

Antimony

1.69

0.753

Lead

0.247

0.118

Oil and grease

11.8

7.06

TSS

24.1

11.5

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Alkaline cleaning spent baths.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.345

0.154

Lead

0.051

0.024

Oil and grease

2.40

1.44

TSS

4.92

2.34

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Alkaline cleaning rinse.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

6.78

3.02

Lead

0.991

0.472

Oil and grease

47.2

28.4

TSS

96.8

46.0

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Swaging spent emulsions.

Subpart A—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion

Antimony

0.005

0.002

Lead

0.0007

0.0004

Oil and grease

0.036

0.022

TSS

0.073

0.034

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Degreasing spent solvents—subpart A—BPT. There shall be no discharge of process wastewater pollutants.

§ 471.12 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent emulsions.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsion

Antimony

0.067

0.030

Lead

0.010

0.005

(b) Rolling spent soap solutions.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions

Antimony

0.120

0.055

Lead

0.018

0.009

(c) Drawing spent neat oils—subpart A—BAT. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions

Antimony

0.080

0.034

Lead

0.011

0.005

(e) Drawing spent soap solutions.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions

Antimony

0.022

0.010

Lead

0.003

0.002

(f) Extrusion press and solution heat treatment contact colling water.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds/per million off-pounds) of lead-tin-bismuth heat treated

Antimony

0.414

0.185

Lead

0.061

0.030

(g) Extrusion press hydraulic fluid leakage.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds/per million off-pounds) of lead-tin-bismuth extruded

Antimony

0.158

0.071

Lead

0.023

0.011

(h) Continuous strip casting contact cooling water.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony

0.003

0.001

Lead

0.0004

0.0002

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony

0.009

0.004

Lead

0.001

0.0006

(j) Shot casting contact cooling water.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast

Antimony

0.107

0.048

Lead

0.016

0.008

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed

Antimony

0.169

0.076

Lead

0.025

0.012

(l) Alkaline cleaning spent baths.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.345

0.154

Lead

0.051

0.024

(m) Alkaline cleaning rinse.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.678

0.302

Lead

0.099

0.047

(n) Swaging spent emulsions.

Subpart A—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion

Antimony

0.005

0.002

Lead

0.0008

0.0004

(o) Degreasing spent solvents—subpart A—BAT. There shall be no discharge of process wastewater pollutants.

§ 471.13 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards. The mass of pollutants in the lead-tin-bismuth forming operations' process wastewater shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsions

Antimony

0.067

0.030

Lead

0.010

0.005

Oil and grease

0.468

0.281

TSS

0.960

0.457

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(b) Rolling spent soap solutions.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions

Antimony

0.120

0.055

Lead

0.018

0.009

Oil and grease

0.860

0.520

TSS

1.80

0.840

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent neat oils — subpart A—NSPS. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions

Antimony

0.076

0.034

Lead

0.011

0.005

Oil and grease

0.526

0.316

TSS

1.087

0.513

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Drawing spent soap solutions.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions

Antimony

0.022

0.010

Lead

0.003

0.002

Oil and grease

0.149

0.090

TSS

0.306

0.146

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Extrusion press and solution heat treatment contact cooling water.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth heat treated

Antimony

0.414

0.185

Lead

0.061

0.030

Oil and grease

2.80

1.72

TSS

5.91

2.81

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Extrusion press hydraulic fluid leakage.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth extruded

Antimony

0.158

0.071

Lead

0.023

0.011

Oil and grease

1.10

0.660

TSS

2.26

1.07

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Continuous strip casting contact cooling water.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony

0.003

0.001

Lead

0.0004

0.0002

Oil and grease

0.020

0.012

TSS

0.041

0.020

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth ingot cast by the semi-continuous method

Antimony

0.009

0.004

Lead

0.001

0.0006

Oil and grease

0.059

0.036

TSS

0.121

0.058

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Shot casting contact cooling water.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast

Antimony

0.107

0.048

Lead

0.016

0.008

Oil and grease

0.746

0.448

TSS

1.53

0.728

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed

Antimony

0.169

0.076

Lead

0.025

0.012

Oil and grease

1.18

0.706

TSS

2.41

1.15

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Alkaline cleaning spent baths.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.345

0.154

Lead

0.051

0.024

Oil and grease

2.40

1.44

TSS

4.92

2.34

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Alkaline cleaning rinse.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.678

0.302

Lead

0.099

0.047

Oil and grease

4.72

2.84

TSS

9.68

4.60

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Swaging spent emulsions.

Subpart A—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion

Antimony

0.005

0.002

Lead

0.0008

0.0004

Oil and grease

0.036

0.022

TSS

0.073

0.035

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Degreasing spent solvents—subpart A—NSPS. There shall be no discharge of process wastewater pollutants.

§ 471.14 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988, achieve the pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in lead-tin-bismuth forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsions

Antimony

0.067

0.030

Lead

0.010

0.005

(b) Rolling spent soap solutions.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions

Antimony

0.120

0.055

Lead

0.018

0.009

(c) Drawing spent neat oils—subpart A—PSES. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions

Antimony

0.076

0.034

Lead

0.011

0.005

(e) Drawing spent soaps solutions.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap olutions

Antimony

0.022

0.010

Lead

0.003

0.002

(f) Extrusion press and solution heat treatment contact cooling water.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth heat treated

Antimony

0.414

0.185

Lead

0.061

0.029

(g) Extrusion press hydraulic fluid leakage.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth extruded

Antimony

0.158

0.071

Lead

0.023

0.011

(h) Continuous strip casting contact cooling water.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony

0.003

0.001

Lead

0.0004

0.0002

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the semi-continuous strip method

Antimony

0.009

0.004

Lead

0.001

0.0006

(j) Shot casting contact cooling water.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast

Antimony

0.107

0.048

Lead

0.016

0.008

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed

Antimony

0.169

0.076

Lead

0.025

0.012

(l) Alkaline Cleaning Spent Baths.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.345

0.154

Lead

0.051

0.024

(m) Alkaline cleaning rinse.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.678

0.302

Lead

0.099

0.047

(n) Swaging spent emulsions.

Subpart A—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion

Antimony

0.005

0.002

Lead

0.0008

0.0004

(o) Degreasing spent solvents—subpart A—PSES. There shall be no discharge of process wastewater pollutants.

§ 471.15 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new sources subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in lead-tin-bismuth forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsions

Antimony

0.067

0.030

Lead

0.010

0.005

(b) Rolling spent soap solutions.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions

Antimony

0.120

0.055

Lead

0.018

0.009

(c) Drawing spent neat oils—subpart A—PSNS. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions

Antimony

0.076

0.034

Lead

0.011

0.005

(e) Drawing spent soap solutions.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions

Antimony

0.022

0.010

Lead

0.003

0.002

(f) Extrusion press and solution heat treatment contact cooling water.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth heat treated

Antimony

0.414

0.185

Lead

0.061

0.029

(g) Extrusion press hydraulic fluid leakage.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth extruded

Antimony

0.158

0.071

Lead

0.023

0.011

(h) Continuous strip casting contact cooling water.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method

Antimony

0.003

0.001

Lead

0.0004

0.0002

(i) Semi-continuous ingot casting contact cooling water.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth ingot cast by the semi-continuous method

Antimony

0.009

0.004

Lead

0.001

0.0006

(j) Shot casting contact cooling water.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast

Antimony

0.107

0.048

Lead

0.016

0.008

(k) Shot-forming wet air pollution control scrubber blowdown.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed

Antimony

0.169

0.076

Lead

0.025

0.012

(l) Alkaline cleaning spent baths.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.345

0.154

Lead

0.051

0.024

(m) Alkaline cleaning rinse.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned

Antimony

0.678

0.302

Lead

0.099

0.047

(n) Swaging spent emulsions.

Subpart A—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion

Antimony

0.005

0.003

Lead

0.0008

0.0004

(o) Degreasing spent solvents—subpart A—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.20 Applicability; description of the magnesium forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the magnesium forming subcategory.

§ 471.21 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent emulsions.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium rolled with emulsions

Chromiun

0.033

0.014

Zinc

0.109

0.046

Ammonia

9.95

4.37

Fluoride

4.440

1.97

Oil and grease

1.49

0.895

TSS

3.06

1.46

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(b) Forging spent lubricants—subpart B—BPT. There shall be no discharge of process wastewater pollutants.

(c) Forging contact cooling water.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged magnesium cooled with water

Chromium

1.27

0.520

Zinc

4.22

1.77

Ammonia

385

170

Fluoride

172

76.3

Oil and grease

57.8

34.7

TSS

119

56.4

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Forging equipment cleaning wastewater.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium forged

Chromium

0.018

0.007

Zinc

0.059

0.025

Ammonia

5.32

2.34

Fluoride

2.38

1.06

Oil and grease

0.798

0.479

TSS

1.64

0.778

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Direct chill casting contact cooling water.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium cast with direct chill methods

Chromium

1.74

0.711

Zinc

5.77

2.41

Ammonia

527

232

Fluoride

235

105

Oil and grease

79.0

47.4

TSS

162

77.1

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Surface treatment spent baths.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

0.205

0.084

Zinc

0.681

0.285

Ammonia

62.1

27.3

Fluoride

27.8

12.3

Oil and grease

9.32

5.59

TSS

19.1

9.09

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Surface treatment rinse.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

8.32

3.4

Zinc

27.6

11.5

Ammonia

2520

1110

Fluoride

1130

499

Oil and grease

378

227

TSS

775

369

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Sawing or grinding spent emulsions.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sawed or ground

Chromium

0.009

0.004

Zinc

0.029

0.012

Ammonia

2.60

1.15

Fluoride

1.16

0.515

Oil and grease

0.390

0.234

TSS

0.800

0.381

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Degreasing spent solvents—subpart B—BPT. There shall be no discharge of process wastewater pollutants.

(j) Wet air pollution control scrubber blowdown.

Subpart B—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sanded and repaired or forged

Chromium

0.273

0.112

Zinc

0.904

0.378

Ammonia

82.5

36.3

Fluoride

36.9

16.4

Oil and grease

12.4

7.43

TSS

25.4

12.1

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

§ 471.22 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent emulsions.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium rolled with emulsions

Chromium

0.033

0.014

Zinc

0.109

0.046

Ammonia

9.95

4.37

Fluoride

4.44

1.97

(b) Forging spent lubricants—subpart B—BAT. There shall be no discharge of process wastewater pollutants.

(c) Forging contact cooling water.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged magnesium cooled with water

Chromium

0.127

0.052

Zinc

0.422

0.177

Ammonia

38.5

17.0

Fluoride

17.2

7.63

(d) Forging equipment cleaning wastewater.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium forged

Chromium

0.002

0.0007

Zinc

0.006

0.003

Ammonia

0.532

0.234

Fluoride

0.238

0.106

(e) Direct chill casting contact cooling water.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium cast with direct chill methods

Chromium

1.74

0.711

Zinc

5.77

2.41

Ammonia

527

232

Fluoride

235

105

(f) Surface treatment spent baths.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

0.205

0.084

Zinc

0.681

0.285

Ammonia

62.1

27.3

Fluoride

27.8

12.3

(g) Surface treatment rinse.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

0.832

0.340

Zinc

2.76

1.16

Ammonia

252

111

Fluoride

113

49.9

(h) Sawing or grinding spent emulsions.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sawed or ground

Chromium

0.009

0.004

Zinc

0.029

0.012

Ammonia

2.60

1.15

Fluoride

1.16

0.515

(i) Degreasing spent solvents—subpart B—BAT. There shall be no discharge of process wastewater pollutants.

(j) Wet air pollution control scrubber blowdown.

Subpart B—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sanded and repaired or forged

Chromium

0.273

0.112

Zinc

0.904

0.378

Ammonia

82.5

36.3

Fluoride

36.9

16.4

§ 471.23 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards. The mass of pollutants in the magnesium forming process wastewater shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off/kg (pounds per million off-pounds) of magnesium rolled with emulsions

Chromium

0.028

0.011

Zinc

0.076

0.032

Ammonia

9.95

4.37

Fluoride

4.44

1.97

Oil and grease

0.746

0.746

TSS

1.12

0.895

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(b) Forging spent lubricants—subpart B—NSPS. There shall be no discharge of process wastewater pollutants.

(c) Forging contact cooling water.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off/kg (pounds per million off-pounds) of forged magnesium cooled with water

Chromium

0.107

0.044

Zinc

0.295

0.122

Ammonia

38.5

17.0

Fluoride

17.2

7.63

Oil and grease

2.89

2.89

TSS

4.34

3.47

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Forging equipment cleaning wastewater.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off/kg (pounds per million off-pounds) of magnesium forged

Chromium

0.002

0.0006

Zinc

0.004

0.002

Ammonia

0.532

0.234

Fluoride

0.238

0.106

Oil and grease

0.040

0.040

TSS

0.060

0.048

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Direct chill casting contact cooling water.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium cast with direct chill methods

Chromium

1.46

0.593

Zinc

4.03

1.66

Ammonia

527

232

Fluoride

235

105

Oil and grease

39.5

39.5

TSS

59.3

47.4

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Surface treatment spent baths.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

0.173

0.070

Zinc

0.476

0.196

Ammonia

62.1

27.3

Fluoride

27.8

12.3

Oil and grease

4.66

4.66

TSS

6.99

5.60

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times

(g) Surface treatment rinse.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pound pers million off-pounds) of magnesium surface treated

Chromium

0.700

0.284

Zinc

1.93

0.794

Ammonia

252

111

Fluoride

113

49

Oil and grease

18.9

18.9

TSS

28.4

22.7

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times

(h) Sawing or grinding spent emulsions.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sawed or ground

Chromium

0.007

0.003

Zinc

0.020

0.008

Ammonia

2.60

1.15

Fluoride

1.16

0.515

Oil and grease

0.195

0.195

TSS

0.293

0.234

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Degreasing spent Solvents—subpart B—NSPS. There shall be no discharge of process wastewater pollutants.

(j) Wet air pollution control scrubber blowdown.

Subpart B—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sanded and repaired or forged

Chromium

0.229

0.093

Zinc

0.632

0.260

Ammonia

82.5

36.3

Fluoride

36.9

16.4

Oil and grease

6.19

6.19

TSS

9.29

7.43

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

§ 471.24 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in magnesium forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium rolled with emulsions

Chromium

0.033

0.014

Zinc

0.109

0.046

Ammonia

9.95

4.37

Fluoride

4.44

1.97

(b) Forging spent lubricants—subpart B—PSE. There shall be no discharge of process wastewater pollutants.

(c) Forging contact cooling water.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium cooled with water

Chromium

0.127

0.052

Zinc

0.422

0.177

Ammonia

38.5

17.0

Fluoride

17.2

7.63

(d) Forging equipment cleaning wastewater.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium forged

Chromium

0.002

0.0007

Zinc

0.006

0.003

Ammonia

0.532

0.234

Fluoride

0.238

0.106

(e) Direct chill casting contact cooling water.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium cast with direct chill methods

Chromiun

1.74

0.711

Zinc

5.77

2.41

Ammonia

527

232

Fluoride

235

105

(f) Surface treatment spent baths.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromiun

0.205

0.084

Zinc

0.681

0.285

Ammonia

62.1

27.3

Fluoride

27.8

12.3

(g) Surface treatment rinse.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromiun

0.832

0.340

Zinc

2.76

1.16

Ammonia

252

111

Fluoride

113

49.9

(h) Sawing or grinding spent emulsions.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sawed or ground

Chromiun

0.009

0.004

Zinc

0.029

0.012

Ammonia

2.60

1.15

Fluoride

1.16

0.515

(i) Degreasing Spent Solvents—subpart B—PSES. There shall be no discharge of process wastewater pollutants.

(j) Wet air pollution control scrubber blowdown.

Subpart B—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sanded and repaired or forged

Chromium

0.273

0.112

Zinc

0.904

0.378

Ammonia

8.25

36.3

Fluoride

36.9

16.4

§ 471.25 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in magnesium forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent emulsions.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium rolled with emulsions

Chromium

0.028

0.011

Zinc

0.076

0.032

Ammonia

9.95

4.37

Fluoride

4.44

1.97

(b) Forging spent lubricants—subpart B—PSNS. There shall be no discharge of process wastewater pollutants.

(c) Forging contact cooling water.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged magnesium cooled with water

Chromium

0.107

0.044

Zinc

0.295

0.122

Ammonia

38.5

17.0

Fluoride

17.2

7.63

(d) Forging equipment cleaning wastewater.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium forged

Chromium

0.002

0.0006

Zinc

0.004

0.002

Ammonia

0.532

0.234

Fluoride

0.238

0.106

(e) Direct chill casting contact cooling water.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium cast with direct chill methods

Chromium

1.46

0.593

Zinc

4.03

1.66

Ammonia

527

232

Fluoride

235

105

(f) Surface treatment spent baths.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

0.173

0.070

Zinc

0.476

0.196

Ammonia

62.1

27.3

Fluoride

27.8

12.3

(g) Surface treatment rinse.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium surface treated

Chromium

0.700

0.284

Zinc

1.93

0.794

Ammonia

252

111

Fluoride

113

49.9

(h) Sawing or grinding spent emulsions.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sawed or ground

Chromium

0.007

0.003

Zinc

0.020

0.008

Ammonia

2.60

1.15

Fluoride

1.16

0.515

(i) Degreasing spent solvents—subpart B—PSNS. There shall be no discharge of process wastewater pollutants.

(j) Wet air pollution control scrubber blowdown.

Subpart B—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of magnesium sanded and repaired or forged

Chromium

0.229

0.093

Zinc

0.632

0.260

Ammonia

82.5

36.3

Fluoride

36.9

16.4

§ 471.30 Applicability; description of the nickel-cobalt forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the nickel-cobalt forming subcategory.

§ 471.31 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30-125.32, any existing point source sub-

ject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent neat oils—subpart C—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium

0.075

0.031

Nickel

0.327

0.216

Fluoride

10.1

4.49

Oil and grease

3.4

2.04

TSS

6.97

3.32

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Rolling contact cooling water.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium

1.66

0.679

Nickel

7.24

4.79

Fluoride

225

99.6

Oil and grease

75.4

45.3

TSS

155

73.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Tube Reducing Spent Lubricant—subpart C—BPT. (1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(2) of this section.

(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing process do not exceed 0.050 mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.

(3) The demonstration required under paragraph (d)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in paragraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under paragraph (d)(2) of this section shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.

(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in paragraph (d)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:

(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (d)(2) of this section; or

(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or

(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the NPDES issuing authority that such source has been eliminated.

(5) The concentration limits specified in paragraph (d)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:

(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate ( i.e. , lower) allowable discharge concentration; and

(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.

(e) Drawing spent neat oils—subpart C—BPT. There shall be no discharge of process wastewater pollutants

(f) Drawing spent emulsions.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium

0.042

0.017

Nickel

0.183

0.121

Fluoride

5.68

2.52

Oil and grease

1.91

1.15

TSS

3.91

1.86

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Extrusion spent lubricants—subpart C—BPT. There shall be no discharge of process wastewater pollutants.

(h) Extrusion press or solution heat treatment contact cooling water.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt heat treated

Chromium

0.037

0.015

Nickel

0.160

0.106

Fluoride

4.95

2.20

Oil and grease

1.67

0.999

TSS

3.41

1.63

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Extrusion press hydraulic fluid leakage.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium

0.102

0.042

Nickel

0.446

0.295

Fluoride

13.8

6.13

Oil and grease

4.64

2.79

TSS

9.51

4.53

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Forging equipment cleaning wastewater.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.018

0.007

Nickel

0.077

0.051

Fluoride

2.38

1.06

Oil and grease

0.800

0.480

TSS

1.640

0.780

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Forging contact cooling water.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium

0.209

0.086

Nickel

0.910

0.602

Fluoride

28.2

12.5

Oil and grease

9.48

5.69

TSS

19.5

9.25

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Forging press hydraulic fluid leakage.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.083

0.034

Nickel

0.359

0.238

Fluoride

11.2

4.94

Oil and grease

3.74

2.25

TSS

7.67

3.65

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Forging spent lubricants—subpart C—BPT. There shall be no discharge of process wastewater pollutants.

(n) Stationary casting contact cooling water.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast with stationary casting methods

Chromium

5.33

2.18

Nickel

23.3

15.4

Fluoride

720

320

Oil and grease

242

145

TSS

496

236

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Vacuum melting steam condensate—subpart C—BPT. There shall be no allowance for the discharge of process wastewater pollutants.

(p) Metal powder production atomization wastewater.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium

1.16

0.472

Nickel

5.03

3.33

Fluoride

156

69.2

Oil and grease

52.4

31.5

TSS

108

51.1

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Annealing and solution heat treatment contact cooling water—subpart C—BPT. There shall be no allowance for the discharge of process wastewater pollutants.

(r) Wet air pollution control scrubber blowdown.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.357

0.146

Nickel

1.56

1.03

Fluoride

48.2

21.4

Oil and grease

16.2

9.72

TSS

33.2

15.8

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(s) Surface treatment spent baths.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.412

0.169

Nickel

1.80

1.19

Fluoride

55.7

24.7

Oil and grease

18.7

11.2

TSS

38.4

18.3

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Surface treatment rinse.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

10.4

4.25

Nickel

45.3

30.0

Fluoride

1410

623

Oil and grease

472

283

TSS

968

460

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(u) Alkaline cleaning spent baths.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.015

1.52

Nickel

16.2

10.7

Fluoride

502

223

Oil and grease

169

101

TSS

346

165

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Alkaline cleaning rinse.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

1.03

0.420

Nickel

4.48

2.96

Fluoride

139

61.5

Oil and grease

46.6

28.0

TSS

95.6

45.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(w) Molten salt rinse.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium

3.72

1.52

Nickel

16.2

10.7

Fluoride

502

223

Oil and grease

169

101

TSS

346

165

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(x) Ammonia rinse.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium

0.007

0.003

Nickel

0.029

0.019

Fluoride

0.881

0.391

Oil and grease

0.296

0.178

TSS

0.607

0.289

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(y) Sawing or grinding spent emulsions.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground with emulsions

Chromium

0.018

0.007

Nickel

0.076

0.050

Fluoride

2.35

1.04

Oil and grease

0.788

0.473

TSS

1.62

0.769

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(z) Sawing or grinding rinse.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium

0.797

0.326

Nickel

3.48

2.30

Fluoride

108

47.8

Oil and grease

36.2

21.7

TSS

74.2

35.3

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(aa) Steam Cleaning Condensate.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium

0.013

0.006

Nickel

0.058

0.039

Fluoride

1.79

0.795

Oil and grease

0.602

0.361

TSS

1.24

0.587

pH

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(bb) Hydrostatic tube testing and ultrasonic testing wastewater—subpart C—BPT. There shall be no allowance for the discharge of process wastewater pollutants.

(cc) Degreasing spent solvents—subpart C—BPT. There shall be no discharge of process wastewater pollutants.

(dd) Dye penetrant testing wastewater.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with dye penetrant method

Chromium

0.094

0.039

Nickel

0.409

0.271

Fluoride

12.7

5.63

Oil and grease

4.26

2.56

TSS

8.74

4.16

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(ee) Electrocoating rinse.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electrocoated

Chromium

1.48

0.607

Nickel

6.47

4.28

Fluoride

201

89.0

Oil and grease

67.4

40.5

TSS

138

65.7

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(ff) Miscellaneous wastewater sources.

Subpart C—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.108

0.044

Nickel

0.473

0.313

Fluoride

14.7

6.50

Oil and grease

4.92

2.95

TSS

10.1

4.80

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

§ 471.32 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent neat oils—subpart C—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium

0.063

0.026

Nickel

0.094

0.063

Fluoride

10.1

4.49

(c) Rolling contact cooling water.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium

0.028

0.011

Nickel

0.042

0.028

Fluoride

4.49

1.99

(d) Tube Reducing Spent Lubricant—subpart C—BAT. (1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(2) of this section.

(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing process do not exceed 0.050 mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.

(3) The demonstration required under paragraph (d)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in subparagraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under subparagraph (d)(2) of this section shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.

(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in subparagraph (d)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:

(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (d)(2) of this section; or

(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or

(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the NPDES issuing authority that such source has been eliminated.

(5) The concentration limits specified in paragraph (d)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:

(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate ( i.e. , lower) allowable discharge concentration; and

(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.

(e) Drawing spent neat oils—subpart C—BAT. There shall be no discharge of process wastewater pollutants.

(f) Drawing spent emulsions.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium

0.036

0.015

Nickel

0.053

0.036

Fluoride

5.68

2.52

(g) Extrusion spent lubricants—subpart C—BAT. There shall be no discharge of process wastewater pollutants.

(h) Extrusion press or solution heat treatment contact cooling water.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded nickel-cobalt heat treated

Chromium

0.031

0.013

Nickel

0.046

0.031

Fluoride

4.95

2.20

(i) Extrusion press hydraulic fluid leakage.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium

0.086

0.034

Nickel

0.128

0.086

Fluoride

13.8

6.13

(j) Forging equipment cleaning wastewater.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.002

0.0006

Nickel

0.002

0.002

Fluoride

0.238

0.106

(k) Forging contact cooling water.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium

0.018

0.007

Nickel

0.026

0.018

Fluoride

2.82

1.25

(l) Forging press hydraulic fluid leakage.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.069

0.028

Nickel

.103

0.069

Fluoride

11.2

4.94

(m) Forging spent lubricants—subpart C—BAT. There shall be no discharge of process wastewater pollutants.

(n) Stationary casting contact cooling water.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast with stationary casting methods

Chromium

0.448

0.182

Nickel

.666

.448

Fluoride

72.0

32.0

(o) Vacuum melting steam condensate—subpart C—BAT. There shall be no allowance for the discharge of wastewater pollutants.

(p) Metal powder production atomization wastewater.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium

0.970

0.393

Nickel

1.44

.970

Fluoride

156

69.2

(q) Annealing and solution heat treatment contact cooling water—subpart C—BAT. There shall be no allowance for the discharge of wastewater pollutants.

(r) Wet air pollution control scrubber blowdown.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.300

0.122

Nickel

.446

.300

Fluoride

48.2

21.4

(s) Surface treatment spent baths.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.346

0.141

Nickel

.514

.346

Fluoride

55.7

24.7

(t) Surface treatment rinse.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.873

0.354

Nickel

1.30

.873

Fluoride

141

62.3

(u) Alkaline cleaning spent baths.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.013

0.005

Nickel

0.019

0.013

Fluoride

2.02

0.895

(v) Alkaline cleaning rinse.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.086

0.035

Nickel

0.128

0.086

Fluoride

13.9

6.15

(w) Molten salt rinse.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly averge

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium

0.312

0.127

Nickel

0.464

0.312

Fluoride

50.2

22.3

(x) Ammonia rinse.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium

0.006

0.002

Nickel

0.008

0.006

Fluoride

0.881

0.391

(y) Sawing or grinding spent emulsions.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground with emulsions

Chromium

0.015

0.006

Nickel

0.022

0.015

Fluoride

2.35

1.04

(z) Sawing or grinding rinse.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium

0.067

0.027

Nickel

0.100

0.067

Fluoride

10.8

4.78

(aa) Steam cleaning condensate.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium

0.011

0.005

Nickel

0.017

0.011

Fluoride

1.79

0.795

(bb) Hydrostatic tube testing and ultrasonic testing wastewater—subpart C—BAT. There shall be no allowance for the discharge of process wastewater pollutants.

(cc) Degreasing spent solvents—subpart C—BAT. There shall be no discharge of process wastewater pollutants.

(dd) Dye penetrant testing wastewater.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with dye penetrant method

Chromium

0.079

0.032

Nickel

0.117

0.079

Fluoride

12.7

5.63

(ee) Electrocoating rinse.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electrocoated

Chromium

1.25

0.506

Nickel

1.86

1.25

Fluoride

201

89.0

(ff) Miscellaneous wastewater sources.

Subpart C—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.091

0.037

Nickel

0.136

0.091

Fluoride

14.7

6.50

§ 471.33 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The mass of pollutants in the nickel-cobalt forming process wastewater shall not exceed the following values:

(a) Rolling spent neat oils—subpart C—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium

0.063

0.026

Nickel

0.094

0.063

Fluoride

10.1

4.49

Oil and grease

1.70

1.70

TSS

2.55

2.04

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Rolling contact cooling water.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium

0.028

0.012

Nickel

0.042

0.028

Fluoride

4.49

1.99

Oil and grease

0.754

0.754

TSS

1.13

0.905

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Tube Reducing Spent Lubricant—subpart C—NSPS. (1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(2) of this section.

(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing process do not exceed 0.050mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.

(3) The demonstration required under paragraph (d)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in paragraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under paragraph (d)(2) of this section shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.

(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in paragraph (d)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:

(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (d)(2) of this section; or

(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or

(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the NPDES issuing authority that such source has been eliminated.

(5) The concentration limits specified in paragraph (d)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:

(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate ( i.e. , lower) allowable discharge concentration; and

(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.

(e) Drawing spent neat oils—subpart C—NSPS. There shall be no discharge of process wastewater pollutants.

(f) Drawing spent emulsions.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium

0.036

0.015

Nickel

0.053

0.036

Fluoride

5.68

2.52

Oil and grease

0.954

0.954

TSS

1.43

1.15

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Extrusion spent lubricants—subpart C—NSPS. There shall be no discharge of process wastewater pollutants.

(h) Extrusion press or solution heat treatment contact cooling water.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded nickel-cobalt heat treated

Chromium

0.031

0.013

Nickel

0.046

0.031

Fluoride

4.95

2.20

Oil and grease

0.832

0.832

TSS

1.25

0.999

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Extrusion press hydraulic fluid leakage.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium

0.086

0.035

Nickel

0.128

0.086

Fluoride

13.8

6.13

Oil and grease

2.32

2.32

TSS

3.48

2.79

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Forging equipment cleaning wastewater.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.002

0.00006

Nickel

0.002

0.002

Fluoride

0.238

0.106

Oil and grease

0.040

0.040

TSS

0.060

0.048

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Forging contact cooling water.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium

0.018

0.007

Nickel

0.026

0.018

Fluoride

2.82

1.25

Oil and grease

0.474

0.474

TSS

0.711

0.569

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Forging press hydraulic fluid leakage.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.069

0.028

Nickel

0.103

0.069

Fluoride

11.2

4.94

Oil and grease

1.87

1.87

TSS

2.81

2.25

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Forging spent lubricants—subpart C—NSPS. There shall be no discharge of process wastewater pollutants.

(n) Stationary casting contact cooling water.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast with stationary casting methods

Chromium

0.448

0.182

Nickel

0.666

0.448

Fluoride

72.0

32.0

Oil and grease

12.1

12.1

TSS

18.2

14.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Vacuum melting steam condensate—subpart C—NSPS. There shall be no allowance for the discharge of process wastewater pollutants.

(p) Metal powder production atomization wastewater.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium

0.970

0.393

Nickel

1.44

0.970

Fluoride

156

69.2

Oil and grease

26.2

26.2

TSS

39.3

31.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Annealing and solution heat treatment contact cooling water — subpart C—NSPS. There shall be no allowance for the discharge of process wastewater pollutants.

(r) Wet air pollution control scrubber blowdown.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.300

0.122

Nickel

0.450

0.300

Fluoride

48.2

21.4

Oil and grease

8.1

8.1

TSS

12.2

9.72

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(s) Surface treatment spent baths.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.346

0.141

Nickel

0.515

0.346

Fluoride

55.7

24.7

Oil and grease

9.35

9.35

TSS

14.1

11.2

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Surface treatment rinse.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.874

0.354

Nickel

1.30

0.873

Fluoride

141

62.3

Oil and grease

23.6

23.6

TSS

35.4

28.3

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(u) Alkaline cleaning spent baths.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.013

0.005

Nickel

0.019

0.013

Fluoride

2.02

0.895

Oil and grease

0.339

0.339

TSS

0.509

0.407

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Alkaline cleaning rinse.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.086

0.035

Nickel

.128

.086

Fluoride

13.9

6.15

Oil and grease

2.33

2.33

TSS

3.50

2.80

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(w) Molten salt rinse.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium

0.312

0.127

Nickel

0.464

0.312

Fluoride

50.2

22.3

Oil and grease

8.44

8.44

TSS

12.7

10.1

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(x) Ammonia rinse.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium

0.006

0.002

Nickel

.008

.006

Fluoride

.881

.391

Oil and grease

.148

.148

TSS

222

178

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(y) Sawing or grinding spent emulsions.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground

Chromium

0.015

0.006

Nickel

.002

.015

Fluoride

2.35

1.04

Oil and grease

.394

.394

TSS

591

473

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(z) Sawing or grinding rinse.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium

0.067

0.027

Nickel

0.100

0.067

Fluoride

10.8

4.78

Oil and grease

1.81

1.81

TSS

2.72

217

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(aa) Steam cleaning condensate.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium

0.011

0.005

Nickel

0.017

0.011

Fluoride

1.79

0.795

Oil and grease

0.301

0.301

TSS

0.452

0.361

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(bb) Hydrostatic tube testing and ultrasonic testing wastewater—subpart C—NSPS. There shall be no discharge of process wastewater pollutants.

(cc) Degreasing spent solvents—subpart C—NSPS. There shall be no discharge of process wastewater pollutants.

(dd) Dye penetrant testing wastewater.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with dye penetrant method

Chromium

0.079

0.032

Nickel

0.117

0.079

Fluoride

12.7

5.63

Oil and grease

2.13

2.13

TSS

3.20

2.56

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(ee) Electrocoating rinse.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electrocoated

Chromium

1.25

0.506

Nickel

1.86

1.25

Fluoride

201

89.0

Oil and grease

33.7

33.7

TSS

50.6

40.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(ff) Miscellaneous wastewater sources.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.091

0.037

Nickel

0.136

0.091

Fluoride

14.7

6.50

Oil and grease

2.46

2.46

TSS

3.69

2.95

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

§ 471.34 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in nickel-cobalt forming wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium

0.063

0.026

Nickel

0.094

0.063

Fluoride

10.1

4.49

(c) Rolling contact cooling water.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium

0.028

0.011

Nickel

0.042

0.028

Fluoride

4.49

1.99

(d) Tube Reducing Spent Lubricant—subpart C—PSES. (1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(2) of this section.

(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing process do not exceed 0.050 mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.

(3) The demonstration required under paragraph (d)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in paragraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under paragraph (d)(2) of this section shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.

(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in paragraph (d)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:

(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (d)(2) of this section; or

(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or

(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the POTW control authority that such source has been eliminated.

(5) The concentration limits specified in paragraph (d)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:

(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate ( i.e. , lower) allowable discharge concentration; and

(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.

(e) Drawing spent neat oils—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(f) Drawing spent emulsions.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium

0.036

0.014

Nickel

0.053

0.036

Fluoride

5.68

2.52

(g) Extrusion spent lubricants—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(h) Extrusion press or solution heat treatment contact cooling water.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded nickel-cobalt heat treated

Chromium

0.031

0.013

Nickel

0.046

0.031

Fluoride

4.95

2.20

(i) Extrusion press hydraulic fluid leakage.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium

0.086

0.034

Nickel

0.128

0.086

Fluoride

13.8

6.13

(j) Forging equipment cleaning wastewater.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.002

0.0006

Nickel

0.002

0.002

Fluoride

0.238

0.106

(k) Forging contact cooling water.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium

0.018

0.007

Nickel

0.026

0.018

Fluoride

2.82

1.25

(l) Forging press hydraulic fluid leakage.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.069

0.028

Nickel

0.103

0.069

Fluoride

11.2

4.94

(m) Forging spent lubricants—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(n) Stationary casting contact cooling water.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast with stationary methods

Chromium

0.448

0.182

Nickel

0.666

0.448

Fluoride

72.0

32.0

(o) Vacuum melting steam condensate—subpart C—PSES. There shall be no allowance for the discharge of wastewater pollutants.

(p) Metal powder production atomization wastewater.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium

0.970

0.393

Nickel

1.44

0.970

Fluoride

156

69.2

(q) Annealing and solution heat treatment contact cooling water—subpart C—PSES. There shall be no allowance for the discharge of wastewater pollutants.

(r) Wet air pollution control scrubber blowdown.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.300

0.122

Nickel

0.446

0.300

Fluoride

48.2

21.4

(s) Surface treatment spent baths.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.346

0.141

Nickel

0.514

0.346

Fluoride

55.7

24.7

(t) Surface treatment rinse.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.873

0.354

Nickel

1.30

0.873

Fluoride

141

62.3

(u) Alkaline cleaning spent baths.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.013

0.005

Nickel

0.019

0.013

Fluoride

2.02

0.895

(v) Alkaline cleaning rinse.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.086

0.035

Nickel

0.128

0.086

Fluoride

13.9

6.15

(w) Molten salt rinse.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium

0.312

0.127

Nickel

0.464

0.312

Fluoride

50.2

22.3

(x) Ammonia rinse.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium

0.006

0.002

Nickel

0.008

0.006

Fluoride

0.881

0.391

(y) Sawing or grinding spent emulsions.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground with emulsions

Chromium

0.015

0.006

Nickel

0.022

0.015

Fluoride

2.35

1.04

(z) Sawing or grinding rinse.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium

0.067

0.027

Nickel

0.100

0.067

Fluoride

10.8

4.78

(aa) Steam cleaning condensate.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium

0.011

0.005

Nickel

0.017

0.011

Fluoride

1.79

0.795

(bb) Hydrostatic Tube Testing and Ultrasonic Testing Wastewater—subpart C—PSES. There shall be no allowance for the discharge of process wastewater pollutants.

(cc) Degreasing Spent Solvents—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(dd) Dye Penetrant Testing Wastewater.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with dye penetrant method

Chromium

0.079

0.032

Nickel

0.117

0.079

Fluoride

12.7

5.63

(ee) Electrocoating rinse.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electrocoated

Chromium

1.25

0.506

Nickel

1.86

1.25

Fluoride

201

89.0

(ff) Miscellaneous wastewater sources.

Subpart C—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.091

0.037

Nickel

0.136

0.091

Fluoride

14.7

6.50

§ 471.35 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in nickel-cobalt forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart C—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium

0.063

0.026

Nickel

0.094

0.063

Fluoride

10.1

4.49

(c) Rolling contact cooling water.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium

0.028

0.012

Nickel

0.042

0.028

Fluoride

4.49

1.99

(d) Tube Reducing Spent Lubricant—subpart C—PSNS. (1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(2) of this section

(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing process do not exceed 0.050 mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.

(3) The demonstration required under subparagraph (d)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in paragraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under paragraph (d)(2) of this section shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.

(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in subparagraph (d)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:

(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (d)(2) of this section (2); or

(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or

(iii) Determines the source of the pollutant whose concentration exceeded the level specified in subparagraph (2) above and demonstrates to the satisfaction of the POTW control authority that such source has been eliminated.

(5) The concentration limits specified in paragraph (d)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:

(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate ( i.e. , lower) allowable discharge concentration; and

(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.

(e) Drawing spent neat oils—subpart C—PSNS. There shall be no discharge of process wastewater pollutants.

(f) Drawing spent emulsions.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium

0.036

0.015

Nickel

0.053

0.036

Fluoride

5.68

2.52

(g) Extrusion spent lubricants—subpart C—PSNS. There shall be no discharge of process wastewater pollutants.

(h) Extrusion press or solution heat treatment contact cooling water.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded nickel-cobalt heat treated

Chromium

0.031

0.013

Nickel

0.046

0.031

Fluoride

4.95

2.20

(i) Extrusion press hydraulic fluid leakage.

Subpart C—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium

0.086

0.034

Nickel

0.128

0.086

Fluoride

13.8

6.13

(j) Forging equipment cleaning wastewater.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.002

0.0006

Nickel

0.002

0.002

Fluoride

0.238

0.106

(k) Forging contact cooling water.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium

0.018

0.007

Nickel

0.026

0.018

Fluoride

2.82

1.25

(l) Forging press hydraulic fluid leakage.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.069

0.028

Nickel

0.103

0.069

Fluoride

11.2

4.94

(m) Forging spent lubricants—subpart C—PSNS. There shall be no discharge of process wastewater pollutants.

(n) Stationary casting contact cooling water.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast with stationary methods

Chromium

0.448

0.182

Nickel

0.666

0.448

Fluoride

72.0

32.0

(o) Vacuum melting steam condensate—subpart C—PSNS. There shall be no allowance for the discharge of process wastewater pollutants.

(p) Metal powder production atomization wastewater.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium

0.970

0.393

Nickel

1.44

0.970

Fluoride

156

69.2

(q) Annealing and Solution Heat Treatment Contact Cooling Water—subpart C—PSNS. There shall be no allowance for the discharge of process wastewater pollutant.

(r) Wet Air Pollution Control Scrubber Blowdown.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.300

0.122

Nickel

0.450

0.300

Fluoride

48.2

21.4

(s) Surface treatment spent baths.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.346

0.141

Nickel

0.515

0.346

Fluoride

55.7

24.7

(t) Surface treatment rinse.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.874

0.354

Nickel

1.30

0.873

Fluoride

141

62.3

(u) Alkaline cleaning spent baths.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.013

0.005

Nickel

0.019

0.013

Fluoride

2.02

0.895

(v) Alkaline cleaning rinse.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.086

0.035

Nickel

0.128

0.086

Fluoride

13.9

6.15

(w) Molten salt rinse.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium

0.312

0.127

Nickel

0.464

0.312

Fluoride

50.2

22.3

(x) Ammonia rinse.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium

0.006

0.002

Nickel

0.008

0.006

Fluoride

0.881

0.391

(y) Sawing or grinding spent emulsions.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground with emulsions

Chromium

0.015

0.006

Nickel

0.022

0.015

Fluoride

2.35

1.04

(z) Sawing or grinding rinse.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium

0.067

0.027

Nickel

0.100

0.067

Fluoride

10.8

4.78

(aa) Steam cleaning condensate.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium

0.011

0.005

Nickel

0.017

0.011

Fluoride

1.79

0.795

(bb) Hydrostatic tube testing and ultrasonic testing wastewater—subpart C—PSNS. There shall be no allowance discharge of process wastewater pollutants.

(cc) Degreasing spent solvents—subpart C—PSNS. There shall be no discharge of process wastewater pollutants.

(dd) Dye penetrant testing wastewater.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with dye penetrant method

Chromium

0.079

0.032

Nickel

0.117

0.079

Fluoride

12.7

5.63

(ee) Electrocoating rinse.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electrocoated

Chromium

1.25

0.506

Nickel

1.86

0.125

Fluoride

201

89.0

(ff) Miscellaneous wastewater sources.

Subpart C—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.091

0.037

Nickel

0.136

0.091

Fluoride

14.7

6.50

§ 471.40 Applicability; description of the precious metals forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the precious metals forming subcategory.

§ 471.41 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent neat oils—subpart D—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions

Chromium

0.026

0.012

Copper

0.147

0.077

Cyanide

0.023

0.010

Silver

0.032

0.013

Oil and grease

1.54

0.925

TSS

3.16

1.51

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent neat oils—subpart D—BPT. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions

Cadmium

0.016

0.007

Copper

0.091

0.048

Cyanide

0.014

0.006

Silver

0.020

0.008

Oil and grease

0.950

0.570

TSS

1.95

0.926

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Drawing spent soap solutions.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions

Cadmium

0.001

0.0005

Copper

0.006

0.003

Cyanide

0.0009

0.0004

Silver

0.001

0.0006

Oil and grease

0.063

0.038

TSS

0.128

0.061

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Metal powder production wet atomization wastewater.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized

Cadmium

2.27

1.00

Copper

12.7

6.70

Cyanide

1.94

0.802

Silver

2.70

1.14

Oil and grease

134

80.2

TSS

274

130

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Heat treatment contact cooling water.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded precious metals heat treated

Cadmium

1.42

0.626

Copper

7.93

4.17

Cyanide

1.21

0.501

Silver

1.71

0.709

Oil and grease

83.4

50.1

TSS

171

81.3

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Semi-continuous or continuous casting contact cooling water.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method

Cadmium

3.50

1.55

Copper

19.6

10.3

Cyanide

2.99

1.24

Silver

4.23

1.75

Oil and grease

206

124

TSS

423

209

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Stationary casting contact cooling water—subpart D—BPT. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method

Cadmium

3.67

1.62

Copper

20.5

10.8

Cyanide

3.13

1.30

Silver

4.43

1.84

Oil and grease

216

130

TSS

443

211

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Shot casting contact cooling water.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals shot cast

Cadmium

1.25

0.551

Copper

6.98

3.67

Cyanide

1.07

0.441

Silver

1.51

0.624

Oil and grease

73.4

44.1

TSS

151

71.6

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Wet air pollution control scrubber blowdown—subpart D—BPT. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal pressure bonded

Cadmium

0.029

0.013

Copper

0.159

0.084

Cyanide

0.024

0.010

Silver

0.034

0.014

Oil and grease

1.67

1.00

TSS

3.43

1.63

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Surface treatment spent baths.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.033

0.015

Copper

0.183

0.097

Cyanide

0.028

0.012

Silver

0.040

0.017

Oil and grease

1.93

1.16

TSS

3.95

1.88

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Surface treatment rinse.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

2.10

0.924

Copper

11.7

5.16

Cyanide

1.79

0.739

Silver

2.53

1.05

Oil and grease

123

73.9

TSS

253

120

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(p) Alkaline cleaning spent baths.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.021

0.009

Copper

0.114

0.060

Cyanide

0.018

0.007

Silver

0.025

0.010

Oil and grease

1.20

0.720

TSS

2.46

1.170

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Alkaline cleaning rinse.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

3.81

1.68

Copper

21.3

11.2

Cyanide

3.25

1.35

Silver

4.59

1.91

Oil and grease

224

135

TSS

459

219

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(r) Alkaline cleaning prebonding wastewater.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding

Cadmium

3.95

1.74

Copper

22.1

11.6

Cyanide

3.37

1.39

Silver

4.76

1.97

Oil and grease

232

139

TSS

476

226

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(s) Tumbling or burnishing wastewater.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished

Cadmium

4.12

1.82

Copper

23.0

12.1

Cyanide

3.51

1.45

Silver

4.96

2.06

Oil and grease

242

145

TSS

496

236

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding spent neat oils—subpart D—BPT. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions

Cadmium

0.032

0.014

Copper

0.178

0.094

Cyanide

0.027

0.011

Silver

0.039

0.016

Oil and grease

1.87

1.12

TSS

3.83

1.82

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Degreasing spent solvents—subpart D—BPT. There shall be no discharge of process wastewater pollutants.

§ 471.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent neat oils—subpart D—BAT. There shall be no discharge of wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions

Cadmium

0.026

0.012

Copper

0.147

0.077

Cyanide

0.023

0.010

Silver

0.032

0.013

(c) Drawing spent neat oils—subpart D—BAT. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions

Cadmium

0.016

0.007

Copper

0.091

0.048

Cyanide

0.014

0.006

Silver

0.020

0.008

(e) Drawing spent soap solutions.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions

Cadmium

0.001

0.0005

Copper

0.006

0.003

Cyanide

0.0009

0.0004

Silver

0.002

0.0006

(f) Metal powder production wet atomization wastewater.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized

Cadmium

2.27

1.00

Copper

12.7

6.68

Cyanide

1.94

0.802

Silver

2.74

1.14

(g) Heat treatment contact cooling water.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals heat treated

Cadmium

0.142

0.063

Copper

0.793

0.417

Cyanide

0.121

0.050

Silver

0.171

0.071

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method

Cadmium

0.350

0.155

Copper

1.96

1.03

Cyanide

0.299

0.124

Silver

0.423

0.175

(i) Stationary casting contact cooling water—subpart D—BAT. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method

Cadmium

0.3676

0.162

Copper

2.05

1.08

Cyanide

0.313

0.130

Silver

0.443

0.184

(k) Shot casting contact cooling water.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals shot cast

Cadmium

0.125

0.055

Copper

0.698

0.367

Cyanide

0.107

0.044

Silver

0.151

0.063

(l) Wet air pollution control scrubber blowdown—subpart D—BAT. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metal and base metal pressure bonded

Cadmium

0.0297

0.013

Copper

0.159

0.084

Cyanide

0.0247

0.010

Silver

0.0342

0.014

(n) Surface treatment spent baths.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.033

0.015

Copper

0.183

0.097

Cyanide

0.028

0.012

Silver

0.040

0.017

(o) Surface treatment rinse.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.210

0.093

Copper

1.17

0.616

Cyanide

0.179

0.074

Silver

0.253

0.105

(p) Alkaline cleaning spent baths.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.021

0.009

Copper

0.114

0.060

Cyanide

0.018

0.007

Silver

0.025

0.010

(q) Alkaline cleaning rinse.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.381

0.168

Copper

2.13

1.12

Cyanide

0.325

0.135

Silver

0.459

0.191

(r) Alkaline cleaning prebonding wastewater.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metal and base metal cleaned prior to bonding

Cadmium

0.400

0.174

Copper

2.210

1.16

Cyanide

0.337

0.139

Silver

0.476

0.197

(s) Tumbling or burnishing wastewater.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished

Cadmium

0.412

0.182

Copper

2.300

1.21

Cyanide

0.351

0.145

Silver

0.496

0.206

(t) Sawing or grinding spent neat oils—subpart D—BAT. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions

Cadmium

0.0327

0.014

Copper

0.178

0.094

Cyanide

0.0277

0.011

Silver

0.0381

0.016

(v) Degreasing spent solvents—subpart D—BAT. There shall be no discharge of process wastewater pollutants.

§ 471.43 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS):

(a) Rolling Spent Neat Oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions

Cadmium

0.026

0.012

Copper

0.147

0.077

Cyanide

0.023

0.010

Silver

0.032

0.013

Oil and grease

1.54

0.925

TSS

3.16

1.51

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent neat oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions

Cadmium

0.017

0.007

Copper

0.091

0.048

Cyanide

0.014

0.006

Silver

0.020

0.008

Oil and grease

0.950

0.570

TSS

1.95

0.927

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Drawing spent soap solutions.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions

Cadmium

0.001

0.0005

Copper

0.006

0.003

Cyanide

0.0009

0.0004

Silver

0.002

0.0006

Oil and grease

0.063

0.038

TSS

0.128

0.061

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Metal powder production atomization wastewater.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized

Cadmium

2.27

1.00

Copper

12.7

6.68

Cyanide

1.94

0.802

Silver

2.74

1.14

Oil and grease

134

80.2

TSS

274

131

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Heat treatment contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals heat treated

Cadmium

0.142

0.063

Copper

0.793

0.417

Cyanide

0.121

0.050

Silver

0.171

0.071

Oil and grease

8.34

5.01

TSS

17.1

8.13

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method

Cadmium

0.350

0.155

Copper

1.96

1.03

Cyanide

0.299

0.124

Silver

0.423

0.175

Oil and grease

20.6

12.4

TSS

42.3

20.1

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Stationary casting contact cooling water—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method

Cadmium

0.367

0.162

Copper

2.05

1.08

Cyanide

0.313

0.130

Silver

0.443

0.184

Oil and grease

21.6

13.0

TSS

44.3

21.1

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Shot casting contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals shot cast

Cadmium

0.125

0.055

Copper

0.698

0.367

Cyanide

0.107

0.044

Silver

0.151

0.063

Oil and grease

7.34

4.41

TSS

15.1

7.16

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Wet air pollution control scrubber blowdown—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal pressure bonded

Cadmium

0.029

0.013

Copper

0.159

0.084

Cyanide

0.024

0.010

Silver

0.034

0.014

Oil and grease

1.67

1.00

TSS

3.43

1.63

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Surface treatment spent baths.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.033

0.015

Copper

0.183

0.097

Cyanide

0.028

0.012

Silver

0.040

0.017

Oil and grease

1.93

1.16

TSS

3.95

1.88

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Surface treatment rinse.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.210

0.093

Copper

1.17

0.616

Cyanide

0.179

0.074

Silver

0.253

0.105

Oil and grease

12.3

7.39

TSS

25.3

12.0

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(p) Alkaline cleaning spent baths.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.021

0.009

Copper

0.114

0.060

Cyanide

0.018

0.007

Silver

0.025

0.010

Oil and grease

1.20

0.720

TSS

2.46

1.17

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Alkaline cleaning rinse.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.381

0.168

Copper

2.13

1.112

Cyanide

0.325

0.135

Silver

0.459

0.191

Oil and grease

22.4

13.5

TSS

45.9

21.9

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(r) Alkaline cleaning pre-bonding wastewater.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding

Cadmium

0.400

0.174

Copper

2.21

1.16

Cyanide

0.337

0.139

Silver

0.476

0.197

Oil and grease

23.2

13.9

TSS

47.6

22.6

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(s) Tumbling or burnishing wastewater.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished

Cadmium

0.412

0.182

Copper

2.30

1.21

Cyanide

0.351

0.145

Silver

0.496

0.206

Oil and grease

24.2

14.5

TSS

49.6

23.6

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding spent neat oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions

Cadmium

0.032

0.014

Copper

0.178

0.094

Cyanide

0.027

0.011

Silver

0.038

0.016

Oil and grease

1.87

1.12

TSS

3.83

1.82

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Degreasing spent solvents—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

§ 471.44 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1985 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in precious metals forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions

Cadmium

0.026

0.012

Copper

0.147

0.077

Cyanide

0.023

0.010

Silver

0.032

0.013

(c) Drawing spent neat oils—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions

Cadmium

0.016

0.007

Copper

0.091

0.048

Cyanide

0.014

0.006

Silver

0.020

0.008

(e) Drawing spent soap solutions.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions

Cadmium

0.001

0.0005

Copper

0.006

0.003

Cyanide

0.0009

0.0004

Silver

0.002

0.0006

(f) Metal powder production atomization wastewater.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized

Cadmium

2.27

1.00

Copper

12.7

6.68

Cyanide

1.94

0.802

Silver

2.74

1.14

(g) Heat treatment contact cooling water.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals heat treated

Cadmium

0.142

0.063

Copper

0.793

0.417

Cyanide

0.121

0.050

Silver

0.171

0.071

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method

Cadmium

0.350

0.155

Copper

1.96

1.03

Cyanide

0.299

0.124

Silver

0.423

0.175

(i) Stationary casting contact cooling water—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any one day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method

Cadmium

0.367

0.162

Copper

2.05

1.08

Cyanide

0.313

0.130

Silver

0.443

0.184

(k) Shot casting contact cooling water.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals shot cast

Cadmium

0.125

0.055

Copper

0.698

0.367

Cyanide

0.107

0.044

Silver

0.151

0.063

(l) Wet air pollution control scrubber blowdown—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metal and base metal pressure bonded

Cadmium

0.029

0.013

Copper

0.159

0.084

Cyanide

0.024

0.010

Silver

0.034

0.014

(n) Surface treatment spent baths.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.033

0.015

Copper

0.183

0.097

Cyanide

0.028

0.012

Silver

0.040

0.017

(o) Surface treatment rinse.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.210

0.093

Copper

1.17

0.616

Cyanide

0.179

0.074

Silver

0.253

0.105

(p) Alkaline cleaning spent baths.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.021

0.009

Copper

0.114

0.060

Cyanide

0.018

0.007

Silver

0.025

0.010

(q) Alkaline cleaning rinse.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.381

0.168

Copper

2.13

1.12

Cyanide

0.325

0.135

Silver

0.459

0.191

(r) Alkaline cleaning prebonding wastewater.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding

Cadmium

0.400

0.174

Copper

2.210

1.16

Cyanide

0.337

0.139

Silver

0.476

0.197

(s) Tumbling or burnishing wastewater.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished

Cadmium

0.412

0.182

Copper

2.300

1.21

Cyanide

0.351

0.145

Silver

0.496

0.206

(t) Sawing or grinding spent neat oils—subpart D—PSES. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions

Cadmium

0.032

0.014

Copper

0.178

0.094

Cyanide

0.027

0.011

Silver

0.038

0.016

(v) Degreasing spent solvents—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.45 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in precious metals forming wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions

Cadmium

0.026

0.012

Copper

0.147

0.077

Cyanide

0.023

0.010

Silver

0.032

0.013

(c) Drawing spent neat oils—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions

Cadmium

0.016

0.007

Copper

0.091

0.048

Cyanide

0.014

0.006

Silver

0.020

0.008

(e) Drawing spent soap solutions.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions

Cadmium

0.001

0.0005

Copper

0.006

0.003

Cyanide

0.0009

0.0004

Silver

0.002

0.0006

(f) Metal powder production wet atomization wastewater.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized

Cadmium

2.27

1.00

Copper

12.7

6.68

Cyanide

1.94

0.802

Silver

2.74

1.14

(g) Heat treatment contact cooling water.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extended precious metals heat treated

Cadmium

0.142

0.063

Copper

0.793

0.417

Cyanide

0.121

0.050

Silver

0.171

0.071

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method

Cadmium

0.350

0.155

Copper

1.96

1.03

Cyanide

0.299

0.124

Silver

0.423

0.175

(i) Stationary casting contact cooling water—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method

Cadmium

0.367

0.162

Copper

2.05

1.08

Cyanide

0.313

0.130

Silver

0.443

0.184

(k) Shot casting contact cooling water.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals shot cast

Cadmium

0.125

0.055

Copper

0.698

0.367

Cyanide

0.107

0.044

Silver

0.151

0.0631

(l) Wet air pollution control scrubber blowdown—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal pressure bonded

Cadmium

0.029

0.013

Copper

0.159

0.084

Cyanide

0.024

0.010

Silver

0.034

0.014

(n) Surface treatment spent baths.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.033

0.015

Copper

0.183

0.097

Cyanide

0.028

0.012

Silver

0.040

0.017

(o) Surface treatment rinse.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals surface treated

Cadmium

0.210

0.093

Copper

1.17

0.616

Cyanide

0.179

0.074

Silver

0.253

0.105

(p) Alkaline cleaning spent baths.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.021

0.009

Copper

0.114

0.060

Cyanide

0.018

0.007

Silver

0.025

0.010

(q) Alkaline cleaning rinse.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned

Cadmium

0.381

0.168

Copper

2.13

1.12

Cyanide

0.325

0.135

Silver

0.459

0.191

(r) Alkaline cleaning pre-bonding wastewater.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding

Cadmium

0.400

0.174

Copper

2.21

1.16

Cyanide

0.337

0.139

Silver

0.476

0.197

(s) Tumbling or burnishing wastewater.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished

Cadmium

0.412

0.182

Copper

2.30

1.21

Cyanide

0.351

0.145

Silver

0.496

0.206

(t) Sawing or grinding spent neat oils—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions

Cadmium

0.032

0.014

Copper

0.178

0.094

Cyanide

0.027

0.011

Silver

0.038

0.016

(v) Degreasing spent solvents—subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.50 Applicability; description of the refractory metals forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the refractory metals forming subcategory.

§ 471.51 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent neat oils and graphite based lubricants—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions

Copper

0.815

0.429

Nickel

0.824

0.545

Fluoride

25.5

11.3

Molybdenum

2.84

1.47

Oil and grease

8.58

5.15

TSS

17.6

8.37

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent lubricants—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals extruded

Copper

2.26

1.19

Nickel

2.29

1.51

Fluoride

70.8

31.4

Molybdenum

7.87

4.07

Oil and grease

23.8

14.3

TSS

48.8

23.2

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Forging spent lubricants—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged refractory metals cooled with water

Copper

0.614

0.323

Nickel

0.620

0.410

Fluoride

19.2

8.53

Molybdenum

2.14

1.11

Oil and grease

6.46

3.88

TSS

13.3

6.30

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Equipment cleaning wastewater.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

2.59

1.36

Nickel

2.61

1.73

Fluoride

80.9

35.9

Molybdenum

8.99

4.65

Oil and grease

27.2

16.3

TSS

55.8

26.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Metal powder production wastewater.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals powder produced

Copper

0.534

0.281

Nickel

0.540

0.357

Fluoride

16.70

7.42

Molybdenum

1.86

0.961

Oil and grease

5.62

3.37

TSS

11.5

5.48

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Metal powder production floor wash wastewater—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

0.739

0.389

Nickel

0.747

0.494

Fluoride

23.2

10.3

Molybdenum

2.57

1.33

Oil and grease

7.78

4.68

TSS

16.0

7.59

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Surface treatment rinse.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

230

121

Nickel

232

154

Fluoride

7,200

3,200

Molybdenum

800

414

Oil and grease

2,420

1,450

TSS

4,960

2,360

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Alkaline cleaning spent baths.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

0.635

0.334

Nickel

0.641

0.424

Fluoride

19.9

8.82

Molybdenum

2.21

1.14

Oil and grease

6.68

4.01

TSS

13.7

6.51

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Alkaline cleaning rinse.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

1,550

816

Nickel

1,570

1,040

Fluoride

48,600

21,600

Molybdenum

5,400

2,790

Oil and grease

16,300

9,790

TSS

33,500

15,900

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(p) Molten salt rinse.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals treated with molten salt

Copper

12.1

6.33

Nickel

12.2

8.04

Fluoride

377

167

Molybdenum

41.9

21.7

Oil and grease

127

76.0

TSS

260

124

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Tumbling or burnishing wastewater.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals tumbled or burnished

Copper

23.8

12.5

Nickel

24.0

15.9

Fluoride

744

330

Molybdenum

82.7

42.8

Oil and grease

250

150

TSS

513

244

pH

( 1 )

( 1 )

Within the range of 7.5 to 10.0 at all times.

(r) Sawing or grinding spent neat oils—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with emulsions

Copper

0.565

0.297

Nickel

0.570

0.377

Fluoride

17.7

7.84

Molybdenum

1.97

1.02

Oil and grease

5.94

3.57

TSS

12.2

5.79

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding contact cooling water.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with contact cooling water

Copper

46.2

24.3

Nickel

46.7

30.9

Fluoride

1450

642

Molybdenum

161

83.1

Oil and grease

486

292

TSS

997

474

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(u) Sawing or grinding rinse.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground refractory metals rinsed

Copper

0.257

0.135

Nickel

0.259

0.172

Fluoride

8.03

3.57

Molybdenum

0.893

0.462

Oil and grease

2.70

1.62

TSS

5.54

2.63

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Wet air pollution control scrubber blowdown.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground, surface coated or surface treated

Copper

1.50

0.787

Nickel

1.51

1.00

Fluoride

46.8

20.8

Molybdenum

5.20

2.69

Oil and grease

15.8

9.45

TSS

32.3

15.4

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(w) Miscellaneous wastewater sources.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.656

0.345

Nickel

0.663

0.438

Fluoride

20.6

9.11

Molybdenum

2.28

1.18

Oil and grease

6.9

4.14

TSS

14.2

6.73

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(x) Dye penetrant testing wastewater.

Subpart E—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals tested

Copper

0.150

0.078

Nickel

0.150

0.099

Fluoride

4.60

2.00

Molybdenum

0.513

0.266

Oil and grease

1.60

0.930

TSS

3.20

1.50

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(y) Degreasing spent solvents—subpart E—BPT. There shall be no discharge of process wastewater pollutants.

§ 471.52 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent neat oils and graphite based lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions

Copper

0.549

0.262

Nickel

0.236

0.157

Fluoride

25.5

11.3

Molybdenum

2.16

0.957

(c) Drawing spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals extruded

Copper

1.5

0.730

Nickel

0.650

0.440

Fluoride

71.000

31.0

Molybdenum

5.99

2.66

(f) Forging spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged refractory metals cooled with water

Copper

0.041

0.020

Nickel

0.018

0.012

Fluoride

1.92

0.853

Molybdenum

0.163

0.072

(h) Equipment cleaning wastewater.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.174

0.083

Nickel

0.075

0.051

Fluoride

8.09

3.59

Molybdenum

0.684

0.303

(i) Metal powder production wastewater.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals powder produced

Copper

0.360

0.172

Nickel

0.155

0.104

Fluoride

16.7

7.42

Molybdenum

1.42

0.627

(j) Metal powder production floor wash wastewater—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

0.498

0.237

Nickel

0.214

0.144

Fluoride

23.2

10.3

Molybdenum

1.96

0.868

(m) Surface treatment rinse.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

15.5

7.38

Nickel

6.66

4.48

Fluoride

720

320

Molybdenum

60.9

27.0

(n) Alkaline cleaning spent baths.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

0.428

0.204

Nickel

0.184

0.124

Fluoride

19.9

8.82

Molybdenum

1.68

0.745

(o) Alkaline cleaning rinse.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

10.5

4.98

Nickel

4.49

3.02

Fluoride

486

216

Molybdenum

41.1

18.2

(p) Molten salt rinse.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals treated with molten salt

Copper

0.810

0.386

Nickel

0.348

0.234

Fluoride

37.7

16.7

Molybdenum

3.19

1.41

(q) Tumbling or burnishing wastewater.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals tumbled or burnished

Copper

1.60

0.763

Nickel

0.688

0.463

Fluoride

74.4

33.0

Molybdenum

6.29

2.79

(r) Sawing or grinding spent neat oils—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with emulsions

Copper

0.380

0.181

Nickel

0.164

0.110

Fluoride

17.7

7.84

Molybdenum

1.50

0.663

(t) Sawing or grinding contact cooling water.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with contact cooling water

Copper

3.11

1.48

Nickel

1.34

0.899

Fluoride

145.0

64.2

Molybdenum

12.2

5.42

(u) Sawing or grinding rinse.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground refractory metals rinsed

Copper

0.018

0.009

Nickel

0.008

0.005

Fluoride

0.803

0.357

Molybdenum

0.068

0.030

(v) Wet air pollution control scrubber blowdown.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed, surface coated or surface treated

Copper

1.01

0.480

Nickel

0.433

0.291

Fluoride

46.8

20.8

Molybdenum

3.96

1.76

(w) Miscellaneous wastewater sources.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.442

0.211

Nickel

0.190

0.128

Fluoride

20.6

9.11

Molybdenum

1.74

0.770

(x) Dye penetrant testing wastewater.

Subpart E—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals product tested

Copper

0.100

0.048

Nickel

0.043

0.029

Fluoride

4.62

2.05

Molybdenum

0.391

0.173

(y) Degreasing spent solvents—subpart E—BAT. There shall be no discharge of process wastewater pollutants.

§ 471.53 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS):

(a) Rolling spent neat oils and graphite based lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions

Copper

0.549

0.262

Nickel

0.236

0.159

Fluoride

25.5

11.3

Molybdenum

2.16

0.957

Oil and grease

4.29

4.29

TSS

6.44

5.15

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals extruded

Copper

1.53

0.726

Nickel

0.655

0.441

Fluoride

70.8

31.4

Molybdenum

5.99

2.66

Oil and grease

11.9

11.9

TSS

17.9

14.3

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Forging spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged refractory metals cooled with water

Copper

0.041

0.020

Nickel

0.018

0.012

Fluoride

1.92

0.853

Molybdenum

0.163

0.072

Oil and grease

0.323

0.323

TSS

0.485

0.388

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Equipment cleaning wastewater.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.174

0.083

Nickel

0.075

0.051

Fluoride

8.09

3.59

Molybdenum

0.684

0.303

Oil and grease

1.36

1.36

TSS

2.04

1.63

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Metal powder production wastewater.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals powder produced

Copper

0.360

0.172

Nickel

0.155

0.104

Fluoride

16.7

7.42

Molybdenum

1.42

0.627

Oil and grease

2.81

2.81

TSS

4.22

3.37

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Metal powder production floor wash wastewater—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

0.498

0.237

Nickel

0.214

0.144

Fluoride

23.2

10.3

Molybdenum

1.96

0.868

Oil and grease

3.89

3.89

TSS

5.84

4.67

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Surface treatment rinse.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

15.5

7.38

Nickel

6.66

4.48

Fluoride

720

320

Molybdenum

69.9

27.0

Oil and grease

121

121

TSS

182

145

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Alkaline cleaning spent baths.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

0.428

0.204

Nickel

.184

0.124

Fluoride

19.9

8.82

Molybdenum

1.68

0.745

Oil and grease

3.34

3.34

TSS

5.01

4.01

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Alkaline cleaning rinse.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

10.5

4.98

Nickel

4.49

3.02

Fluoride

486

216

Molybdenum

41.1

18.2

Oil and grease

81.6

81.6

TSS

123

97.9

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(p) Molten salt rinse.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals treated with molten salt

Copper

0.810

0.386

Nickel

0.348

0.234

Fluoride

37.7

16.7

Molybdenum

3.19

1.41

Oil and grease

6.33

6.33

TSS

9.5

7.6

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Tumbling or burnishing wastewater.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals tumbled or burnished

Copper

1.60

0.763

Nickel

0.688

0.463

Fluoride

74.4

33.0

Molybdenum

6.29

2.79

Oil and grease

12.5

12.5

TSS

18.8

15.0

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(r) Sawing or grinding spent neat oils—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with emulsions

Copper

0.380

0.181

Nickel

0.164

0.110

Fluoride

17.7

7.84

Molybdenum

1.5

0.663

Oil and grease

2.97

2.97

TSS

4.46

3.57

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding contact cooling water.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with contact cooling water

Copper

3.11

1.48

Nickel

1.34

0.899

Fluoride

145

64.2

Molybdenum

12.2

5.42

Oil and grease

24.3

24.3

TSS

36.5

29.2

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(u) Sawing or grinding rinse.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground refractory metals rinsed

Copper

0.018

0.009

Nickel

0.008

0.005

Fluoride

0.803

0.357

Molybdenum

0.068

0.030

Oil and grease

0.135

0.135

TSS

0.203

0.162

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Wet air pollution control scrubber blowdown.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed, ground, surface coated or surface treated

Copper

1.01

0.480

Nickel

0.433

0.291

Fluoride

46.8

20.8

Molybdenum

3.96

1.76

Oil and grease

7.87

7.87

TSS

11.8

9.45

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(w) Miscellaneous wastewater sources.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.442

0.211

Nickel

0.190

0.128

Fluoride

20.6

9.11

Molybdenum

1.74

0.770

Oil and grease

3.45

3.45

TSS

5.18

4.14

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(x) Dye penetrant testing wastewater.

Subpart E—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals product tested

Copper

0.100

0.048

Nickel

0.043

0.029

Fluoride

4.62

2.05

Molybdenum

0.391

0.173

Oil and grease

0.776

0.776

TSS

1.17

0.931

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(y) Degreasing spent solvents—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

§ 471.54 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in refractory metals forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils and graphite based lubricants—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions

Copper

0.815

0.429

Nickel

0.824

0.545

Fluoride

25.5

11.4

Molybdenum

2.84

1.47

(c) Drawing spent lubricants—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals extruded

Copper

2.26

1.19

Nickel

2.29

1.51

Fluoride

70.8

31.4

Molybdenum

7.87

4.07

(f) Forging spent lubricants—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged refractory metals cooled with water

Copper

0.062

0.033

Nickel

0.062

0.041

Fluoride

1.92

0.853

Molybdenum

0.214

0.111

(h) Equipment cleaning wastewater.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.259

0.136

Nickel

0.261

0.173

Fluoride

8.09

3.59

Molybdenum

0.899

0.465

(i) Metal powder production wastewater.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals powder produced

Copper

0.534

0.281

Nickel

0.540

0.357

Fluoride

16.7

7.42

Molybdenum

1.86

0.961

(j) Metal powder production floor wash wastewater—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

0.739

0.389

Nickel

0.747

0.494

Fluoride

23.2

10.3

Molybdenum

2.57

1.33

(m) Surface treatment rinse.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

23.0

12.1

Nickel

23.3

15.4

Fluoride

720

320

Molybdenum

80.0

41.4

(n) Alkaline cleaning spent baths.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

0.635

0.334

Nickel

0.642

0.424

Fluoride

19.9

8.82

Molybdenum

2.21

1.14

(o) Alkaline cleaning rinse.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

15.5

8.16

Nickel

15.7

10.4

Fluoride

486.

216.0

Molybdenum

54.0

27.9

(p) Molten salt rinse.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals treated with molten salt

Copper

1.20

0.633

Nickel

1.22

0.804

Fluoride

37.7

16.7

Molybdenum

4.19

2.17

(q) Tumbling or burnishing wastewater.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals tumbled or burnished

Copper

2.38

1.25

Nickel

2.40

1.59

Fluoride

74.4

33.0

Molybdenum

8.27

4.28

(r) Sawing or grinding spent neat oils—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with emulsions

Copper

0.565

0.297

Nickel

0.570

0.377

Fluoride

17.7

7.84

Molybdenum

1.97

1.02

(t) Sawing or grinding contact cooling water.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with contact cooling water

Copper

4.62

2.43

Nickel

4.67

3.09

Fluoride

145.

64.2

Molybdenum

16.1

8.31

(u) Sawing or grinding rinse.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground refractory metals rinsed

Copper

0.026

0.014

Nickel

0.026

0.017

Fluoride

0.804

0.357

Molybdenum

0.089

0.046

(v) Wet air pollution control blowdown.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed, surface coated or surface treated

Copper

1.50

0.787

Nickel

1.51

1.00

Fluoride

46.9

20.8

Molybdenum

5.20

2.69

(w) Miscellaneous wastewater sources.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.656

0.345

Nickel

0.663

0.438

Fluoride

20.6

9.11

Molybdenum

2.28

1.18

(x) Dye penetrant testing wastewater.

Subpart E—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals product tested

Copper

0.148

0.078

Nickel

0.149

0.099

Fluoride

4.62

2.05

Molybdenum

0.513

0.266

(y) Degreasing spent solvents—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

§ 471.55 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in the refractory metals forming process wastewater shall not exceed the values set forth below:

(a) Rolling spent neat oils and graphite based lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions

Copper

0.549

0.262

Nickel

0.236

0.159

Fluoride

25.5

11.3

Molybdenum

2.16

0.957

(c) Drawing spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals extruded

Copper

1.53

0.726

Nickel

0.655

0.441

Fluoride

70.8

31.4

Molybdenum

5.99

2.66

(f) Forging spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged refractory metals cooled with water

Copper

0.041

0.320

Nickel

0.018

0.021

Fluoride

1.92

0.853

Molybdenum

0.163

0.072

(h) Equipment cleaning wastewater.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.174

0.083

Nickel

0.075

0.051

Fluoride

8.09

3.59

Molybdenum

0.684

0.303

(i) Metal powder production wastewater.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals powder produced

Copper

0.360

0.172

Nickel

0.155

0.104

Fluoride

16.7

7.42

Molybdenum

1.42

0.627

(j) Metal powder production floor wash wastewater—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

0.498

0.237

Nickel

0.214

0.144

Fluoride

23.2

10.3

Molybdenum

1.96

0.868

(m) Surface treatment rinse.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals surface treated

Copper

15.5

7.38

Nickel

6.66

4.48

Fluoride

720

320

Molybdenum

60.9

27.0

(n) Alkaline cleaning spent baths.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

0.428

0.204

Nickel

0.184

0.124

Fluoride

19.9

8.82

Molybdenum

1.68

0.745

(o) Alkaline cleaning rinse.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned

Copper

10.5

4.98

Nickel

4.49

3.02

Fluoride

48.6

216

Molybdenum

41.1

18.2

(p) Molten salt rinse.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals treated with molten salt

Copper

0.810

0.386

Nickel

0.348

0.234

Fluoride

37.7

16.7

Molybdenum

3.19

1.41

(q) Tumbling or burnishing wastewater.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals tumbled or burnished

Copper

1.60

0.763

Nickel

0.688

0.463

Fluoride

74.4

33.0

Molybdenum

6.29

2.79

(r) Sawing or grinding spent neat oils—subpart E—PSNS. There shall be no discharge or process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with emulsions

Copper

0.380

0.181

Nickel

0.164

0.110

Fluoride

17.7

7.84

Molybdenum

1.50

0.663

(t) Sawing or grinding contact cooling water.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with contact cooling water

Copper

3.11

1.48

Nickel

1.34

0.899

Fluoride

145

64.2

Molybdenum

12.2

5.42

(u) Sawing or grinding rinse.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground refractory metals rinsed

Copper

0.018

0.009

Nickel

0.008

0.005

Fluoride

0.803

0.357

Molybdenum

0.068

0.030

(v) Wet air pollution control blowdown.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals sawed, ground, surface coated or surface treated

Copper

1.01

0.480

Nickel

0.433

0.291

Fluoride

46.8

20.8

Molybdenum

3.96

1.76

(w) Miscellaneous wastewater source.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals formed

Copper

0.442

0.211

Nickel

0.192

0.128

Fluoride

20.6

9.11

Molybdenum

1.74

0.770

(x) Dye penetrant testing wastewater.

Subpart E—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals product tested

Copper

0.100

0.048

Nickel

0.043

0.029

Fluoride

4.62

2.05

Molybdenum

0.391

0.173

(y) Degreasing spend solvents—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.60 Applicability; description of the titanium forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the titanium forming subcategory.

§ 471.61 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling contact cooling water.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water

Cyanide

1.4

0.586

Lead

2.05

0.976

Zinc

7.13

2.98

Ammonia

651

286

Fluoride

291

129

Oil and grease

97.0

58.0

TSS

200.0

95.0

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion spent emulsions.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.021

0.009

Lead

0.030

0.015

Zinc

0.105

0.044

Ammonia

9.59

4.22

Fluoride

4.28

1.9

Oil and grease

1.44

0.863

TSS

2.95

1.4

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Extrusion press hydraulic fluid leakage.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.052

0.022

Lead

0.075

0.036

Zinc

0.260

0.109

Ammonia

23.7

10.5

Fluoride

10.6

4.70

Oil and grease

3.56

2.14

TSS

7.30

3.47

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Forging spent lubricants—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(h) Forging contact cooling water.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged titanium cooled with water

Cyanide

0.580

0.240

Lead

0.840

0.400

Zinc

2.92

1.22

Ammonia

267

117

Fluoride

119

52.8

Oil and grease

40.0

24.0

TSS

82.0

39.0

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Forging equipment cleaning wastewater.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals forged

Cyanide

0.012

0.005

Lead

0.017

0.008

Zinc

0.059

0.025

Ammonia

5.33

2.35

Fluoride

2.38

1.06

Oil and grease

0.800

0.480

TSS

1.64

0.780

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Forging press hydraulic fluid leakage.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of refractory metals forged

Cyanide

0.293

0.121

Lead

0.424

0.202

Zinc

1.48

0.616

Ammonia

135

59.2

Fluoride

60.1

26.7

Oil and grease

20.2

12.1

TSS

41.4

19.7

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Tube reducing spent lubricants—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(l) Heat treatment contact cooling water—subpart F—BPT. There shall be no allowance for the discharge of process wastewater pollutants.

(m) Surface treatment spent baths.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.061

0.025

Lead

0.088

0.042

Zinc

0.304

0.127

Ammonia

27.7

12.2

Fluoride

12.4

5.49

Oil and grease

4.16

2.50

TSS

8.53

4.06

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Surface treatment rinse.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

8.47

3.51

Lead

12.3

5.84

Zinc

42.7

17.8

Ammonia

3,890

1,710

Fluoride

1,740

771

Oil and grease

584

351

TSS

1,200

570

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Wet air pollution control scrubber blowdown.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated or forged

Cyanide

0.621

0.257

Lead

0.899

0.428

Zinc

3.13

1.31

Ammonia

285

126

Fluoride

128

56.5

Oil and grease

42.8

25.7

TSS

87.8

41.8

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(p) Alkaline cleaning spent baths.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.070

0.029

Lead

0.101

0.048

Zinc

0.351

0.147

Ammonia

32.0

14.1

Fluoride

14.3

6.34

Oil and grease

4.80

2.88

TSS

9.84

4.68

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Alkaline cleaning rinse.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.801

0.331

Lead

1.16

0.552

Zinc

4.03

1.69

Ammonia

370

160

Fluoride

164

72.9

Oil and grease

55.2

33.1

TSS

113

53.8

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(r) Molten salt rinse.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated with molten salt

Cyanide

0.277

0.115

Lead

0.401

0.191

Zinc

1.40

0.583

Ammonia

128

56.0

Fluoride

56.8

25.2

Oil and grease

19.1

11.5

TSS

39.2

18.6

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(s) Tumbling wastewater.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tumbled

Cyanide

0.229

0.095

Lead

0.332

0.158

Zinc

1.16

0.482

Ammonia

110

46

Fluoride

47.0

20.9

Oil and grease

15.8

9.48

TSS

32.4

15.4

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding of spent emulsions.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with an emulsion

Cyanide

0.053

0.022

Lead

0.077

0.037

Zinc

0.267

0.112

Ammonia

24.4

10.7

Fluoride

10.9

4.83

Oil and grease

3.66

2.20

TSS

7.51

3.57

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Sawing or grinding contact cooling water.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with contact cooling water

Cyanide

1.38

0.571

Lead

2.00

0.952

Zinc

6.95

2.91

Ammonia

635

279

Fluoride

283

126

Oil and grease

95.2

57.1

TSS

195

92.8

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(w) Dye penetrant testing wastewater.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tested with dye penetrant methods

Cyanide

0.325

0.135

Lead

0.471

0.224

Zinc

1.64

0.683

Ammonia

149

65.7

Fluoride

66.7

29.6

Oil and grease

22.4

13.5

TSS

45.9

21.9

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(x) Miscellaneous wastewater sources.

Subpart F—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium formed

Cyanide

0.010

0.004

Lead

0.014

0.007

Zinc

0.048

0.020

Ammonia

4.32

1.90

Fluoride

1.93

0.856

Oil and grease

0.648

0.389

TSS

1.33

0.632

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(y) Degreasing spent solvents—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

§ 471.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent neat oils—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling contact cooling water.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water

Cyanide

0.142

0.059

Lead

0.205

0.098

Zinc

0.713

0.298

Ammonia

65.1

28.6

Fluoride

29.1

12.90

(c) Drawing spent neat oils—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent neat oils—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion spent lubricants.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.021

0.009

Lead

0.030

0.015

Zinc

0.105

0.044

Ammonia

9.59

4.22

Fluoride

4.28

1.90

(f) Extrusion press hydraulic fluid leakage.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.052

0.022

Lead

0.075

0.036

Zinc

0.260

0.109

Ammonia

23.7

10.5

Fluoride

10.6

4.70

(g) Forging spent lubricants—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

(h) Forging contact cooling water.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged titanium cooled with water

Cyanide

0.029

0.012

Lead

0.042

0.020

Zinc

0.146

0.061

Ammonia

13.3

5.86

Fluoride

5.95

2.64

(i) Forging equipment cleaning wastewater.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged cyanide

Cyanide

0.012

0.005

Lead

0.017

0.008

Zinc

0.059

0.025

Ammonia

5.33

2.35

Fluoride

2.38

1.06

(j) Forging press hydraulic fluid leakage.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.293

0.121

Lead

0.424

0.202

Zinc

1.48

0.616

Ammonia

135

59.2

Fluoride

60.1

26.7

(k) Tube reducing spent lubricants—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

(l) Heat treatment contact cooling water—subpart F—BAT. There shall be no discharge allowance for process wastewater pollutants.

(m) Surface treatment spent baths.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.061

0.025

Lead

0.088

0.042

Zinc

0.304

0.127

Ammonia

27.7

12.2

Fluoride

12.4

5.49

(n) Surface treatment rinse.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.847

0.351

Lead

1.23

0.584

Zinc

4.27

1.78

Ammonia

389

171

Fluoride

174

77.1

(o) Wet air pollutant control scrubber blowdown.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated or forged

Cyanide

0.062

0.026

Lead

0.090

0.043

Zinc

0.313

0.131

Ammonia

28.5

12.6

Fluoride

12.8

5.68

(p) Alkaline cleaning spent baths.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.070

0.029

Lead

0.101

0.048

Zinc

0.351

0.147

Ammonia

32

14.1

Fluoride

14.3

6.34

(q) Akaline cleaning rinse.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.080

0.033

Lead

0.116

0.055

Zinc

0.403

0.169

Ammonia

36.8

16.2

Fluoride

16.4

7.29

(r) Molten salt rinse.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated with molten salt

Cyanide

0.277

0.115

Lead

0.401

0.191

Zinc

1.40

0.583

Ammonia

128

56

Fluoride

56.8

25.2

(s) Tumbling wastewater.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tumbled

Cyanide

0.022

0.010

Lead

0.033

0.016

Zinc

0.116

0.048

Ammonia

11.0

4.60

Fluoride

4.70

2.09

(t) Sawing or grinding spent neat oils—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with emulsions

Cyanide

0.053

0.022

Lead

0.077

0.037

Zinc

0.267

0.112

Ammonia

24.4

10.7

Fluoride

10.9

4.83

(v) Sawing or grinding contact cooling water.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) to titanium sawed or ground with contact cooling water

Cyanide

0.138

0.057

Lead

0.200

0.095

Zinc

0.695

0.291

Ammonia

63.5

27.9

Fluoride

28.3

12.6

(w) Dye penetrant testing wastewater.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tested with dye penetrant methods

Cyanide

0.325

0.135

Lead

0.471

0.224

Zinc

1.64

0.683

Ammonia

149

65.7

Fluoride

66.7

29.6

(x) Miscellaneous wastewater sources.

Subpart F—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium formed

Cyanide

0.010

0.004

Lead

0.014

0.007

Zinc

0.048

0.020

Ammonia

4.32

1.90

Fluoride

1.93

0.856

(y) Degreasing spent solvents—subpart F—BAT. There shall be no discharge of process wastewater pollutants.

§ 471.63 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The discharge of wastewater pollutants from titanium process wastewater shall not exceed the values set forth below:

(a) Rolling spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Rolling contact cooling water.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water

Cyanide

0.142

0.059

Lead

0.205

0.098

Zinc

0.713

0.298

Ammonia

65.1

28.6

Fluoride

29.1

12.9

Oil and grease

9.76

5.86

TSS

20.0

9.52

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.

(e) Extrusion spent emulsions.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.021

0.009

Lead

0.030

0.015

Zinc

0.105

0.044

Ammonia

9.59

4.22

Fluoride

4.28

1.9

Oil and grease

1.44

0.863

TSS

2.95

1.40

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Extrusion press hydraulic fluid leakage.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.052

0.022

Lead

0.075

0.036

Zinc

0.260

0.109

Ammonia

23.7

10.5

Fluoride

10.6

4.70

Oil and grease

3.56

2.14

TSS

7.30

3.47

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Forging spent lubricants—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.

(h) Forging contact cooling water.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged titanium cooled with water

Cyanide

0.029

0.012

Lead

0.0420

0.020

Zinc

0.146

0.061

Ammonia

13.3

5.86

Fluoride

5.95

2.64

Oil and grease

2.00

1.20

TSS

4.10

1.95

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Forging equipment cleaning wastewater.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.012

0.005

Lead

0.017

0.008

Zinc

0.059

0.025

Ammonia

5.33

2.35

Fluoride

2.38

1.06

Oil and grease

0.800

0.490

TSS

1.64

0.780

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Forging press hydraulic fluid leakage.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.293

0.121

Lead

0.424

0.202

Zinc

1.48

0.616

Ammonia

135

59.2

Fluoride

60.1

26.7

Oil and grease

20.2

12.1

TSS

41.4

19.7

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Tube reducing spent lubricants—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.

(l) Heat treatment contact cooling water—subpart F—NSPS. There shall be no discharge allowance for the discharge of process wastewater pollutants.

(m) Surface treatment spent baths.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.061

0.025

Lead

0.088

0.042

Zinc

0.304

0.127

Ammonia

27.7

12.2

Fluoride

12.4

5.49

Oil and grease

4.16

2.50

TSS

8.53

4.06

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Surface treatment rinse.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.847

0.351

Lead

1.23

0.584

Zinc

4.27

1.78

Ammonia

389

171

Fluoride

174

77.1

Oil and grease

58.4

35.1

TSS

120

57.0

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(o) Wet air pollution control scrubber blowdown.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated or forged

Cyanide

0.062

0.026

Lead

0.090

0.043

Zinc

0.313

0.131

Ammonia

28.5

12.6

Fluoride

12.8

5.65

Oil and grease

4.28

2.57

TSS

8.78

4.18

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(p) Alkaline cleaning spent baths.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.070

0.030

Lead

0.101

0.048

Zinc

0.351

0.147

Ammonia

32.0

14.1

Fluoride

14.3

6.34

Oil and grease

4.80

2.88

TSS

9.84

4.68

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(q) Alkaline cleaning rinse.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.080

0.033

Lead

0.116

0.055

Zinc

0.403

0.169

Ammonia

36.8

16.2

Fluoride

16.4

7.29

Oil and grease

5.52

3.31

TSS

11.3

5.38

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(r) Molten salt rinse.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated with molten salt

Cyanide

0.277

0.115

Lead

0.401

0.191

Zinc

1.40

0.583

Ammonia

128

56.0

Fluoride

56.8

25.2

Oil and grease

19.1

11.5

TSS

39.2

18.6

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(s) Tumbling wastewater.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tumbled

Cyanide

0.023

0.010

Lead

0.033

0.016

Zinc

0.116

0.048

Ammonia

10.6

4.63

Fluoride

4.70

2.09

Oil and grease

1.58

0.948

TSS

3.24

1.54

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with emulsions

Cyanide

0.053

0.022

Lead

0.077

0.037

Zinc

0.267

0.112

Ammonia

24.4

10.7

Fluoride

10.9

4.83

Oil and grease

3.66

2.20

TSS

7.51

3.57

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(v) Sawing or grinding contact cooling water.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with contact cooling water

Cyanide

0.138

0.057

Lead

0.200

0.095

Zinc

0.695

0.291

Ammonia

63.5

27.9

Fluoride

28.3

12.6

Oil and grease

9.52

5.71

TSS

19.5

9.28

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(w) Dye penetrant testing wastewater.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tested using dye penetrant methods

Cyanide

0.325

0.135

Lead

0.471

0.224

Zinc

1.64

0.683

Ammonia

149

65.7

Fluoride

66.7

29.6

Oil and grease

22.4

13.5

TSS

45.9

21.9

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(x) Miscellaneous wastewater sources.

Subpart F—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium formed

Cyanide

0.010

0.004

Lead

0.014

0.007

Zinc

0.048

0.020

Ammonia

4.32

1.90

Fluoride

1.93

0.856

Oil and grease

0.648

0.389

TSS

1.33

0.63

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(y) Degreasing spent solvents—subpart F—NSPS. There shall be no discharge of process wastewater pollutant.

§ 471.64 Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in titanium forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling contact cooling water.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water

Cyanide

0.142

0.059

Lead

0.205

0.098

Zinc

0.713

0.298

Ammonia

65.1

28.6

Fluoride

29.1

12.9

(c) Drawing spent neat oils—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent neat oils—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

(e) Extrusion spent emulsions.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.021

0.009

Lead

0.030

0.015

Zinc

0.105

0.044

Ammonia

9.59

4.22

Fluoride

4.28

1.90

(f) Extrusion press hydraulic fluid leakage.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.052

0.022

Lead

0.75

0.036

Zinc

0.260

0.109

Ammonia

23.7

10.5

Fluoride

10.6

4.70

(g) Forging spent lubricants—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

(h) Forging contact cooling water.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged titanium cooled with water

Cyanide

0.029

0.012

Lead

0.042

0.020

Zinc

0.146

0.061

Ammonia

13.3

5.86

Fluoride

5.95

2.64

(i) Forging equipment cleaning wastewater.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.012

0.005

Lead

0.017

0.008

Zinc

0.059

0.025

Ammonia

5.33

2.35

Fluoride

2.38

1.06

(j) Forging press hydraulic fluid leakage.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.293

0.121

Lead

0.424

0.202

Zinc

1.48

0.616

Ammonia

135

59.2

Fluoride

60.1

26.7

(k) Tube reducing spent lubricants—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

(l) Heat treatment contact cooling water—subpart F—PSES. There shall be no discharge allowance for the discharge of process wastewater pollutants.

(m) Surface treatment spent baths.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.061

0.025

Lead

0.088

0.042

Zinc

0.304

0.127

Ammonia

27.7

12.2

Fluoride

12.4

5.49

(n) Surface treatment rinse.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.847

0.351

Lead

1.23

0.584

Zinc

4.27

1.78

Ammonia

389

171

Fluoride

174

77.1

(o) Wet air pollution control scrubber blowdown.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated or forged

Cyanide

0.062

0.026

Lead

0.090

0.043

Zinc

0.313

0.131

Ammonia

28.5

12.6

Fluoride

12.8

5.65

(p) Alkaline cleaning spent baths.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.070

0.029

Lead

0.101

0.048

Zinc

0.351

0.147

Ammonia

32.0

14.1

Fluoride

14.3

6.34

(q) Alkaline cleaning rinse.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.080

0.033

Lead

0.116

0.055

Zinc

0.403

0.169

Ammonia

36.8

16.2

Fluoride

16.4

7.29

(r) Molten salt rinse.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated with molten salt

Cyanide

0.277

0.115

Lead

0.401

0.191

Zinc

1.40

0.583

Ammonia

128

56.0

Fluoride

56.8

25.2

(s) Tumbling wastewater.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tumbled

Cyanide

0.023

0.010

Lead

0.033

0.016

Zinc

0.116

0.048

Ammonia

10.6

4.63

Fluoride

4.70

2.09

(t) Sawing or grinding spent neat oils—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with emulsions

Cyanide

0.053

0.022

Lead

0.077

0.037

Zinc

0.267

0.112

Ammonia

24.4

10.7

Fluoride

10.9

4.83

(v) Sawing or grinding contact cooling water.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with contact cooling water

Cyanide

0.138

0.057

Lead

0.200

0.095

Zinc

0.695

0.291

Ammonia

63.5

27.9

Fluoride

28.3

12.6

(w) Dye penetrant testing wastewater.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated using dye penetrant methods

Cyanide

0.325

0.135

Lead

0.471

0.224

Zinc

1.64

0.638

Ammonia

149

65.7

Fluoride

66.7

29.6

(x) Miscellaneous wastewater sources.

Subpart F—PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium formed

Cyanide

0.010

0.004

Lead

0.014

0.007

Zinc

0.048

0.020

Ammonia

4.32

1.90

Fluoride

1.93

0.856

(y) Degreasing spent solvents—subpart F—PSES. There shall be no discharge of process wastewater pollutants.

§ 471.65 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in the titanium forming process wastewater shall not exceed the values set forth below:

(a) Rolling spent neat oils—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling contact cooling water.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water

Cyanide

0.142

0.059

Lead

0.205

0.098

Zinc

0.713

0.298

Ammonia

65.1

28.6

Fluoride

29.1

12.9

(c) Drawing spent neat oils—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent neat oils—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

(e) Extrusion spent emulsions.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.021

0.009

Lead

0.030

0.015

Zinc

0.105

0.044

Ammonia

9.59

4.22

Fluoride

4.28

1.90

(f) Extrusion press hydraulic fluid leakage.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium extruded

Cyanide

0.052

0.022

Lead

0.075

0.036

Zinc

0.260

0.109

Ammonia

23.7

10.5

Fluoride

10.6

4.70

(g) Forging spent lubricants—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

(h) Forging contact cooling water.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged titanium cooled with water

Cyanide

0.029

0.012

Lead

0.042

0.020

Zinc

0.146

0.061

Ammonia

13.3

5.86

Fluoride

5.95

2.64

(i) Forging equipment cleaning wastewater.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.012

0.005

Lead

0.017

0.008

Zinc

0.059

0.025

Ammonia

5.33

2.35

Fluoride

2.38

1.06

(j) Forging press hydraulic fluid leakage.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium forged

Cyanide

0.293

0.121

Lead

0.424

0.202

Zinc

1.48

0.616

Ammonia

135

59.2

Fluoride

60.1

26.7

(k) Tube reducing spent lubricants—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

(l) Heat treatment contact cooling water—subpart F—PSNS. There shall be no discharge allowance for the discharge of process wastewater pollutants.

(m) Surface treatment spent baths.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.061

0.025

Lead

0.088

0.042

Zinc

0.304

0.127

Ammonia

27.7

12.2

Fluoride

12.4

5.49

(n) Surface treatment rinse.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated

Cyanide

0.847

0.351

Lead

1.23

0.584

Zinc

4.27

1.78

Ammonia

389

171

Fluoride

174

77.1

(o) Wet air pollution control scrubber blowdown.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium surface treated or forged

Cyanide

0.062

0.026

Lead

0.090

0.043

Zinc

0.313

0.131

Ammonia

28.5

12.6

Fluoride

12.8

5.65

(p) Alkaline cleaning spent baths.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.070

0.029

Lead

0.101

0.048

Zinc

0.351

0.147

Ammonia

32.0

14.1

Fluoride

14.3

6.34

(q) Alkaline cleaning rinse.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned

Cyanide

0.080

0.033

Lead

0.116

0.055

Zinc

0.403

0.169

Ammonia

36.8

16.2

Fluoride

16.4

7.29

(r) Molten salt rinse.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated with molten salt

Cyanide

0.277

0.115

Lead

0.401

0.191

Zinc

1.40

0.583

Ammonia

128

56.0

Fluoride

56.8

25.2

(s) Tumbling wastewater.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium tumbled

Cyanide

0.023

0.010

Lead

0.033

0.016

Zinc

0.116

0.048

Ammonia

10.6

4.63

Fluoride

4.70

2.09

(t) Sawing or grinding spent neat oils—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with emulsions

Cyanide

0.053

0.022

Lead

0.077

0.037

Zinc

0.267

0.112

Ammonia

24.4

10.7

Fluoride

10.9

4.83

(v) Sawing or grinding contact cooling water.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with contact cooling water

Cyanide

0.138

0.057

Lead

0.200

0.095

Zinc

0.695

0.291

Ammonia

63.5

27.9

Fluoride

28.3

12.6

(w) Dye penetrant testing wastewater.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium treated using dye penetrant methods

Cyanide

0.325

0.135

Lead

0.471

0.224

Zinc

1.64

0.683

Ammonia

149

65.7

Fluoride

66.7

29.6

(x) Miscellaneous wastewater sources.

Subpart F—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of titanium formed

Cyanide

0.010

0.004

Lead

0.014

0.007

Zinc

0.048

0.020

Ammonia

4.32

1.90

Fluoride

1.93

0.856

(y) Degreasing spent solvents—subpart F—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.70 Applicability; description of the uranium forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the uranium forming subcategory.

§ 471.71 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best praticable control technology currently available (BPT):

(a) Extrusion spent lubricants—subpart G—BPT. There shall be no discharge process wastewater pollutants.

(b) Extrusion tool contact cooling water.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium extruded

Cadium

0.117

0.052

Chromium

0.152

0.062

Copper

0.654

0.344

Lead

0.145

0.069

Nickel

0.661

0.437

Fluoride

20.5

9.08

Molybdenum

2.28

1.18

Oil and grease

6.88

4.13

TSS

14.1

6.71

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Heat treatment contact cooling water.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated

Cadium

0.646

0.285

Chromium

0.836

0.342

Copper

3.61

1.90

Lead

0.798

0.380

Nickel

3.65

2.42

Fluoride

113

50.2

Molybdenum

12.6

6.5

Oil and grease

38

22.8

TSS

77.9

37.1

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Forging spent lubricants—subpart G—BPT. There shall be no discharge of process wastewater pollutants.

(e) Surface treatment spent baths.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.010

0.004

Chromium

0.012

0.005

Copper

0.052

0.027

Lead

0.012

0.006

Nickel

0.052

0.035

Fluoride

1.62

0.718

Molybdenum

0.180

0.093

Oil and grease

0.544

0.327

TSS

1.12

0.531

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Surface treatment rinse.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.115

0.050

Chromium

0.149

0.061

Copper

0.641

0.337

Lead

0.142

0.068

Nickel

0.647

0.428

Fluoride

20.1

8.90

Molybdenum

2.23

1.16

Oil and grease

6.74

4.05

TSS

13.8

6.57

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Wet air pollution control scrubber blowdown.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.00

0.0006

Chromium

0.002

0.0007

Copper

0.007

0.004

Lead

0.002

0.0007

Nickel

0.007

0.005

Fluoride

0.208

0.092

Molybdenum

0.023

0.012

Oil and grease

0.070

0.042

TSS

0.143

0.068

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Sawing or grinding spent emulsions.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions

Cadmium

0.002

0.0009

Chromium

0.003

0.001

Copper

0.011

0.006

Lead

0.003

0.001

Nickel

0.011

0.007

Fluoride

0.338

0.150

Molybdenum

0.038

0.020

Oil and grease

0.114

0.068

TSS

0.233

0.111

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Sawing or grinding contact cooling water.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling ater

Cadmium

0.561

0.248

Chromium

0.726

0.297

Copper

3.14

1.65

Lead

0.693

0.330

Nickel

3.17

2.1

Fluoride

98.2

43.6

Molybdenum

10.9

5.65

Oil and grease

33.0

19.8

TSS

67.7

32.2

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Sawing or grinding rinse.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinses

Cadmium

0.002

0.0007

Chromium

0.002

0.0009

Copper

0.009

0.005

Lead

0.002

0.001

Nickel

0.009

0.006

Fluoride

0.277

0.123

Molybdenum

0.031

0.016

Oil and grease

0.093

0.056

TSS

0.191

0.091

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Area cleaning rinse.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.015

0.007

Chromium

0.019

0.008

Copper

0.082

0.043

Lead

0.018

0.009

Nickel

0.083

0.055

Fluoride

2.56

1.14

Molybdenum

0.284

0.147

Oil and grease

0.858

0.515

TSS

1.76

0.837

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Drum washwater.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.015

0.007

Chromium

0.020

0.008

Copper

0.084

0.045

Lead

0.019

0.009

Nickel

0.085

0.057

Fluoride

2.64

1.17

Molybdenum

0.293

0.152

Oil and grease

0.886

0.532

TSS

1.82

0.864

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Laundry washwater.

Subpart G—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/employee—day

Cadmium

17.8

7.86

Chromium

23.1

9.43

Copper

99.6

52.4

Lead

22.0

10.5

Nickel

101

66.6

Fluoride

3,120

1,390

Molybdenum

347

179

Oil and grease

1,050

629

TSS

2,150

1,020

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Degreasing spent solvents—subpart G—BPT. There shall be no discharge of process wastewater pollutants.

§ 471.72 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Extrusion spent lubricants—subpart G—BAT. There shall be no discharge of process wastewater pollutants.

(b) Extrusion tool contact cooling water.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium extruded

Cadmium

0.007

0.003

Chromium

0.013

0.005

Copper

0.044

0.021

Lead

0.010

0.005

Nickel

0.019

0.013

Fluoride

2.05

0.908

Molybdenum

0.173

0.077

(c) Heat treatment contact cooling water.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated

Cadmium

0.006

0.003

Chromium

0.012

0.005

Copper

0.040

0.019

Lead

0.009

0.004

Nickel

0.017

0.012

Fluoride

1.86

0.827

Molybdenum

0.158

0.070

(d) Forging spent lubricants—subpart G—BAT. There shall be no discharge of process wastewater pollutants.

(e) Surface treatment spent baths.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.006

0.002

Chromium

0.010

0.004

Copper

0.035

0.017

Lead

0.008

0.004

Nickel

0.015

0.010

Fluoride

1.62

0.718

Molybdenum

0.137

0.061

(f) Surface treatment rinse.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.068

0.027

Chromium

0.125

0.051

Copper

0.432

0.260

Lead

0.095

0.044

Nickel

0.186

0.125

Fluoride

20.1

8.90

Molybdenum

1.70

0.752

(g) Wet air pollution control scrubber blowdown.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.0007

0.0003

Chromium

0.001

0.0005

Copper

0.005

0.002

Lead

0.001

0.0005

Nickel

0.002

0.001

Fluoride

0.208

0.092

Molybdenum

0.018

0.008

(h) Sawing or grinding spent emulsions.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions

Cadmium

0.001

0.0005

Chromium

0.002

0.0009

Copper

0.007

0.004

Lead

0.002

0.001

Nickel

0.003

0.002

Fluoride

0.338

0.150

Molybdenum

0.029

0.013

(i) Sawing or grinding contact cooling water.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling water

Cadmium

0.033

0.013

Chromium

0.061

0.025

Copper

0.211

0.101

Lead

0.046

0.022

Nickel

0.091

0.061

Fluoride

9.82

4.36

Molybdenum

0.830

0.368

(j) Sawing or grinding rinse.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinse

Cadmium

0.001

0.0004

Chromium

0.002

0.0007

Copper

0.006

0.003

Lead

0.002

0.0006

Nickel

0.003

0.002

Fluoride

0.277

0.123

Molybdenum

0.024

0.011

(k) Area cleaning rinse.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.009

0.004

Chromium

0.016

0.007

Copper

0.055

0.026

Lead

0.012

0.006

Nickel

0.024

0.016

Fluoride

2.56

1.14

Molybdenum

0.216

0.096

(l) Drum, washwater.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.009

0.004

Chromium

0.017

0.007

Copper

0.057

0.027

Lead

0.013

0.006

Nickel

0.025

0.017

Fluoride

2.64

1.17

Molybdenum

0.223

0.099

(m) Laundry washwater.

Subpart G—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/employee—day

Cadmium

5.24

2.10

Chromium

9.70

3.93

Copper

33.6

16.0

Lead

7.34

3.41

Nickel

14.4

9.70

Fluoride

1.560

692

Molybdenum

132

58.4

(n) Degreasing spent solvents—subpart G—BAT. There shall be no discharge of process wastewater pollutants.

§ 471.73 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The mass of pollutants in the uranium forming process wastewater shall not exceed the following values:

(a) Extrusion spent lubricants—subpart G—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Extrusion tool contact cooling water.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium extruded

Cadmium

0.007

0.003

Chromium

0.013

0.005

Copper

0.044

0.021

Lead

0.010

0.005

Nickel

0.019

0.013

Fluoride

2.05

0.908

Molybdenum

0.173

0.077

Oil and grease

0.344

0.344

TSS

0.516

0.413

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Heat treatment contact cooling water.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated

Cadmium

0.006

0.003

Chromium

0.012

0.005

Copper

0.040

0.019

Lead

0.009

0.004

Nickel

0.017

0.012

Fluoride

1.86

0.827

Molybdenum

0.158

0.070

Oil and grease

0.313

0.313

TSS

0.470

0.376

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Forging spent lubricants—subpart G—NSPS. There shall be no discharge of process wastewater pollutants.

(e) Surface treatment spent baths.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.006

0.002

Chromium

0.010

0.004

Copper

0.035

0.017

Lead

0.008

0.004

Nickel

0.015

0.010

Fluoride

1.62

0.718

Molybdenum

0.137

0.061

Oil and grease

0.272

0.272

TSS

0.408

0.327

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Surface treatment rinse.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.068

0.027

Chromium

0.125

0.051

Copper

0.432

0.206

Lead

0.095

0.044

Nickel

0.186

0.125

Fluoride

20.1

8.90

Molybdenum

1.70

0.752

Oil and grease

3.37

3.37

TSS

5.06

4.05

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(g) Wet air pollution control scrubber blowdown.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.0007

0.0003

Chromium

0.001

0.0005

Copper

0.005

0.002

Lead

0.001

0.0005

Nickel

0.002

0.001

Fluoride

0.208

0.092

Molybdenum

0.018

0.008

Oil and grease

0.035

0.035

TSS

0.053

0.042

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Sawing or grinding spent emulsions.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions

Cadmium

0.001

0.0005

Chromium

0.002

0.0009

Copper

0.007

0.004

Lead

0.002

0.0008

Nickel

0.003

0.002

Fluoride

0.338

0.150

Molybdenum

0.029

0.013

Oil and grease

0.057

0.057

TSS

0.085

0.068

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Sawing or grinding contact cooling water.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling water

Cadmium

0.033

0.013

Chromium

0.061

0.025

Copper

0.211

0.101

Lead

0.046

0.022

Nickel

0.091

0.061

Fluoride

9.82

4.36

Molybdenum

0.830

0.368

Oil and grease

1.65

1.65

TSS

2.48

1.98

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Sawing or grinding rinse.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinsed

Cadmium

0.001

0.0004

Chromium

0.002

0.0007

Copper

0.006

0.003

Lead

0.002

0.0006

Nickel

0.003

0.002

Fluoride

0.277

0.123

Molybdenum

0.024

0.011

Oil and grease

0.047

0.047

TSS

0.070

0.056

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Area cleaning rinse.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.009

0.004

Chromium

0.016

0.007

Copper

0.055

0.026

Lead

0.012

0.006

Nickel

0.024

0.016

Fluoride

2.56

1.14

Molybdenum

0.216

0.096

Oil and grease

0.429

0.429

TSS

0.644

0.515

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Drum washwater.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.009

0.004

Chromium

0.017

0.007

Copper

0.057

0.027

Lead

0.013

0.006

Nickel

0.025

0.017

Fluoride

2.64

1.17

Molybdenum

0.223

0.099

Oil and grease

0.443

0.443

TSS

0.665

0.532

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Laundry washwater.

Subpart G—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/employee—day

Cadmium

5.24

2.10

Chromium

9.70

3.93

Copper

33.6

16.0

Lead

7.34

3.41

Nickel

14.4

9.70

Fluoride

1,560

692

Molybdenum

132

58.4

Oil and grease

262

262

TSS

393

315

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Degreasing spent solvents—subpart G—NSPS. There shall be no discharge of process waster pollutants.

§ 471.75 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in uranium forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Extrusion spent lubricants—subpart G—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Extrusion tool contact cooling water.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium extruded

Cadmium

0.007

0.003

Chromium

0.013

0.005

Copper

0.044

0.021

Lead

0.010

0.005

Nickel

0.019

0.013

Fluoride

2.05

0.908

Molybdenum

0.173

0.077

(c) Heat treatment contact cooling water.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated

Cadmium

0.006

0.003

Chromium

0.012

0.005

Copper

0.040

0.019

Lead

0.009

0.004

Nickel

0.017

0.012

Fluoride

1.86

0.827

Molybdenum

0.158

0.070

(d) Forging spent lubricants—subpart G—PSNS. There shall be no discharge of process wastewater pollutants.

(e) Surface treatment spent baths.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.006

0.002

Chromium

0.010

0.004

Copper

0.035

0.017

Lead

0.008

0.004

Nickel

0.015

0.010

Fluoride

1.62

0.718

Molybdenum

0.137

0.061

(f) Surface treatment rinse.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.068

0.027

Chromium

0.125

0.051

Copper

0.432

0.206

Lead

0.095

0.044

Nickel

0.186

0.125

Fluoride

20.1

8.90

Molybdenum

1.70

0.752

(g) Wet air pollution control scrubber blowdown.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium surface treated

Cadmium

0.0007

0.0003

Chromium

0.001

0.0005

Copper

0.005

0.002

Lead

0.001

0.0005

Nickel

0.002

0.001

Fluoride

0.208

0.092

Molybdenum

0.018

0.008

(h) Sawing or grinding spent emulsions.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions

Cadmium

0.001

0.0005

Chromium

0.002

0.0009

Copper

0.007

0.004

Lead

0.002

0.0008

Nickel

0.003

0.002

Fluoride

0.338

0.150

Molybdenum

0.029

0.013

(i) Sawing or grinding contact cooling water.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling water

Cadmium

0.033

0.013

Chromium

0.061

0.025

Copper

0.211

0.101

Lead

0.046

0.022

Nickel

0.091

0.061

Fluoride

9.82

4.36

Molybdenum

0.830

0.368

(j) Sawing or grinding rinse.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinsed

Cadmium

0.001

0.0004

Chromium

0.002

0.0007

Copper

0.006

0.003

Lead

0.002

0.0006

Nickel

0.003

0.002

Fluoride

0.277

0.123

Molybdenum

0.024

0.011

(k) Area cleaning rinse.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.009

0.004

Chromium

0.016

0.007

Copper

0.055

0.026

Lead

0.012

0.006

Nickel

0.024

0.016

Fluoride

2.56

1.14

Molybdenum

0.216

0.096

(l) Drum washwater.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of uranium formed

Cadmium

0.009

0.004

Chromium

0.017

0.007

Copper

0.057

0.027

Lead

0.013

0.006

Nickel

0.025

0.017

Fluoride

2.64

1.17

Molybdenum

0.223

0.099

(m) Laundry washwater.

Subpart G—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/employee—day

Cadmium

5.24

2.10

Chromium

9.70

3.93

Copper

33.6

16.0

Lead

7.34

3.41

Nickel

14.4

9.70

Fluoride

1,560

692

Molybdenum

132

58.4

(n) Degreasing spent solvents—subpart G—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.80 Applicability; description of the zinc forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the zinc forming subcategory.

§ 471.81 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Rolling spent neat oils—subpart H—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions

Chromium

0.0006

0.0003

Copper

0.003

0.002

Cyanide

0.0004

0.0002

Zinc

0.002

0.0009

Oil and grease

0.028

0.017

TSS

0.057

0.027

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Rolling contact cooling water.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water

Chromium

0.236

0.0097

Copper

1.02

0.536

Cyanide

0.156

0.065

Zinc

0.783

0.327

Oil and grease

10.7

6.43

TSS

22.0

10.5

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Drawing spent emulsions.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions

Chromium

0.003

0.001

Copper

0.011

0.006

Cyanide

0.002

0.0007

Zinc

0.009

0.004

Oil and grease

0.116

0.070

TSS

0.238

0.113

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(e) Direct chill casting contact cooling water.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method

Chromium

0.222

0.091

Copper

0.960

0.505

Cyanide

0.147

0.061

Zinc

0.738

0.308

Oil and grease

10.1

6.06

TSS

20.7

9.85

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Stationary casting contact cooling water—subpart H—BPT. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc heat treated

Chromium

0.336

0.138

Copper

1.45

0.763

Cyanide

0.221

0.092

Zinc

1.12

0.466

Oil and grease

15.3

9.16

TSS

31.3

14.9

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Surface treatment spent baths.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.039

0.016

Copper

0.169

0.089

Cyanide

0.026

0.011

Zinc

0.130

0.054

Oil and grease

1.78

1.07

TSS

3.64

1.73

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Surface treatment rinse.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

1.58

0.645

Copper

6.80

3.58

Cyanide

1.04

0.430

Zinc

5.23

2.19

Oil and grease

71.6

43.0

TSS

147

69.8

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Alkaline cleaning spent baths.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.002

0.0007

Copper

0.007

0.004

Cyanide

0.001

0.0004

Zinc

0.005

0.002

Oil and grease

0.071

0.043

TSS

0.146

0.069

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Alkaline cleaning rinse.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.744

0.304

Copper

3.21

1.69

Cyanide

0.490

0.203

Zinc

2.47

1.03

Oil and grease

33.8

20.3

TSS

69.3

33.0

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Sawing or grinding spent emulsions.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions

Chromium

0.011

0.005

Copper

0.045

0.024

Cyanide

0.007

0.003

Zinc

0.035

0.015

Oil and grease

0.476

0.286

TSS

0.976

0.464

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Electrocoating rinse.

Subpart H—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc electrocoated

Chromium

1.01

0.412

Copper

4.35

2.29

Cyanide

0.664

0.275

Zinc

3.35

1.40

Oil and grease

45.8

27.5

TSS

93.9

44.7

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(n) Degreasing spent solvents—subpart H—BPT. There shall be no discharge of process wastewater pollutants.

§ 471.82 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Rolling spent neat oils—subpart H—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions

Chromium

0.0005

0.0002

Copper

0.002

0.0009

Cyanide

0.0003

0.0001

Zinc

0.002

0.0006

(c) Rolling contact cooling water.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water

Chromium

0.020

0.009

Copper

0.069

0.033

Cyanide

0.011

0.004

Zinc

0.055

0.023

(d) Drawing spent emulsions.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions

Chromium

0.002

0.0009

Copper

0.008

0.004

Cyanide

0.001

0.0005

Zinc

0.006

0.003

(e) Direct chill casting contact cooling water.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method

Chromium

0.019

0.008

Copper

0.065

0.031

Cyanide

0.010

0.004

Zinc

0.052

0.021

(f) Stationary casting contact cooling water—subpart H—BAT. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc heat treated

Chromium

0.029

0.012

Copper

0.098

0.047

Cyanide

0.016

0.006

Zinc

0.078

0.032

(h) Surface treatment spent baths.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.033

0.014

Copper

0.114

0.054

Cyanide

0.018

0.007

Zinc

0.091

0.038

(i) Surface treatment rinse.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.133

0.054

Copper

0.457

0.219

Cyanide

0.072

0.029

Zinc

0.365

0.151

(j) Alkaline cleaning spent baths.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.002

0.0006

Copper

0.005

0.002

Cyanide

0.0007

0.0003

Zinc

0.004

0.002

(k) Alkaline cleaning rinse.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.626

0.254

Copper

2.17

1.03

Cyanide

0.338

0.135

Zinc

1.73

0.710

(l) Sawing or grinding spent emulsions.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions

Chromium

0.009

0.004

Copper

0.031

0.015

Cyanide

0.005

0.002

Zinc

0.025

0.010

(m) Electrocoating rinse.

Subpart H—BAT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc electrocoated

Chromium

0.085

0.035

Copper

0.293

0.140

Cyanide

0.046

0.019

Zinc

0.234

0.096

(n) Degreasing spent solvents—subpart H—BAT. There shall be no discharge or process wastewater pollutants.

§ 471.83 New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS):

(a) Rolling spent neat oils—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions

Chromium

0.0005

0.0002

Copper

0.002

0.0009

Cyanide

0.0003

0.0001

Zinc

0.002

0.0006

Oil and grease

0.014

0.014

TSS

0.021

0.017

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(c) Rolling contact cooling water.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water

Chromium

0.020

0.009

Copper

0.069

0.037

Cyanide

0.011

0.004

Zinc

0.055

0.023

Oil and grease

0.536

0.536

TSS

0.804

0.643

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(d) Drawing spent emulsions.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions

Chromium

0.002

0.0009

Copper

0.008

0.004

Cyanide

0.001

0.0005

Zinc

0.006

0.003

Oil and grease

0.058

0.058

TSS

0.087

0.070

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times

(e) Direct chill casting contact cooling water.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any one day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method

Chromium

0.019

0.008

Copper

0.065

0.031

Cyanide

0.010

0.004

Zinc

0.052

0.021

Oil and grease

0.505

0.505

TSS

0.758

0.606

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(f) Stationary casting contact cooling water—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc heat treated

Chromium

0.029

0.012

Copper

0.098

0.047

Cyanide

0.016

0.006

Zinc

0.078

0.032

Oil and grease

0.763

0.763

TSS

1.15

0.916

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(h) Surface treatment spent baths.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.033

0.014

Copper

0.114

0.054

Cyanide

0.018

0.007

Zinc

0.091

0.038

Oil and grease

0.887

0.887

TSS

1.33

1.07

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(i) Surface treatment rinse.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.133

0.054

Copper

0.459

0.219

Cyanide

0.072

0.029

Zinc

0.365

0.151

Oil and grease

3.58

3.58

TSS

5.37

4.30

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(j) Alkaline cleaning spent baths.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.002

0.0006

Copper

0.005

0.002

Cyanide

0.0007

0.0003

Zinc

0.004

0.002

Oil and grease

0.036

0.036

TSS

0.054

0.043

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(k) Alkaline cleaning rinse.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.626

0.259

Copper

2.17

1.03

Cyanide

0.338

0.135

Zinc

1.73

0.710

Oil and grease

16.9

16.9

TSS

25.4

20.3

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(l) Sawing or grinding spent emulsions.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions

Chromium

0.009

0.004

Copper

0.031

0.015

Cyanide

0.005

0.002

Zinc

0.025

0.010

Oil and grease

0.235

0.235

TSS

0.357

0.286

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times.

(m) Electrocoating rinse.

Subpart H—NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc electrocoated

Chromium

0.085

0.035

Copper

0.293

0.140

Cyanide

0.046

0.019

Zinc

0.234

0.096

Oil and grease

2.29

2.29

TSS

3.44

2.75

pH

( 1 )

( 1 )

1 Within the range of 7.5 to 10.0 at all times

(n) Degreasing spent solvents—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.

§ 471.85 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of the wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart H—PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions

Chromium

0.0005

0.0002

Copper

0.002

0.0009

Cyanide

0.0003

0.0001

Zinc

0.002

0.0006

(c) Rolling contact cooling water.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water

Chromium

0.020

0.008

Copper

0.069

0.033

Cyanide

0.011

0.004

Zinc

0.055

0.023

(d) Drawing spent emulsions.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions

Chromium

0.002

0.0009

Copper

0.008

0.004

Cyanide

0.001

0.0005

Zinc

0.006

0.003

(e) Direct chill casting contact cooling water.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method

Chromium

0.019

0.008

Copper

0.065

0.031

Cyanide

0.010

0.004

Zinc

0.052

0.021

(f) Stationary casting contact cooling water—subpart H—PSNS. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc heat treated

Chromium

0.029

0.012

Copper

0.098

0.047

Cyanide

0.016

0.006

Zinc

0.078

0.032

(h) Surface treatment spent baths.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.033

0.014

Copper

0.114

0.054

Cyanide

0.018

0.007

Zinc

0.091

0.038

(i) Surface treatment rinse.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc surface treated

Chromium

0.133

0.054

Copper

0.459

0.219

Cyanide

0.072

0.029

Zinc

0.365

0.151

(j) Alkaline cleaning spent baths.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.002

0.0006

Copper

0.005

0.002

Cyanide

0.0007

0.0003

Zinc

0.004

0.002

(k) Alkaline cleaning rinse.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned

Chromium

0.626

0.254

Copper

2.17

1.03

Cyanide

0.338

0.134

Zinc

1.73

0.710

(l) Sawing or grinding spent emulsions.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions

Chromium

0.009

0.004

Copper

0.031

0.015

Cyanide

0.005

0.002

Zinc

0.025

0.010

(m) Electrocoating rinse.

Subpart H—PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of zinc electrocoated

Chromium

0.085

0.035

Copper

0.293

0.140

Cyanide

0.046

0.019

Zinc

0.234

0.096

(n) Decreasing spent solvents—subpart H—PSNS. There shall be no discharge of process wastewater pollutants.

§ 471.90 Applicability; description of the zirconium-hafnium forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the zirconium-hafnium forming subcategory.