(A) All sewer lines, including manholes, shall be subject to a visual test by lamping between manholes to check for straight alignment and cleanliness, and an exfiltration test to check for tightness. The City Engineer shall select at least 20% of the total lines for exfiltration testing. If all lines selected for the testing successfully pass the test, the City Engineer may waive exfiltration tests on the balance of the lines; however, if leakages above the allowable are observed, the City Engineer may direct that all sewer lines installed be tested. All equipment, material, labor, and the like, required for adequate testing shall be furnished by the contractor.
(B) Leakage in the test section, including manholes, shall not exceed 100 U.S. gallons per day, per inch of pipe diameter, per mill of sewer line. A static head of at least 2 feet shall be maintained at the upstream manhole of all lines being tested for exfiltration.
(1981 Code, § 28-146) (Ord. 649, passed 8-8-1978)