Section 4
Sec. 4. It shall be the duty of the Director of Public Works to make an examination of streams, springs, lakes, or other possible sources of supply for waterworks to be constructed under this Act and to make surveys and investigations requested by any province, city, municipality, or municipal district for the purpose of determining the feasibility of carrying out any project for the construction of waterworks, public markets, and slaughterhouses, and make his recommendation to the Board herein created.