All underground materials shall be new, and all materials used shall conform to these specifications, and shall bear the manufacturer’s stamp or marking. Any newly developed materials that are recently introduced to the waterworks industry shall have the approval of the county engineer and county health officer prior to use. (Ord. 383 § 180, 1974).

All work shall be performed by competent workmen experienced in the trade involved. Such work shall be done in a manner to avoid imperfections which might impair the stability of the physical structure; all work and equipment shall comply with applicable codes; installation is to be made under the direction of qualified personnel; and appropriate contractors, statutes shall be complied with. (Ord. 383 § 181, 1974).