§ 126-710. Sanitary sewer system.

(a)

Materials. Sanitary sewer lines in a subdivision shall be of polyvinyl chloride (PVC) and fittings conforming to the latest revision of ASTM D-3034, and ASTM D-1784, having a cell classification of 12454-B and a minimum SDR of 35. Pipe shall have flexible elastomeric gasket joints approved by the city engineer.

(b)

Construction. Sanitary sewers shall be constructed according to the latest revision of ASTM C-12, ASTM D-2321 and the city engineer's specifications as to trenching, bedding, alignment, grade, installation, backfill and compaction.

(c)

Manholes. Manholes shall be spaced a distance not to exceed 400 feet and shall conform to the city engineer's specifications. Manholes shall be constructed of precast cast-in-place reinforced concrete manhole sections in accordance with the latest revision of ASTM C-478 or of fiberglass in accordance with the city engineer's specifications. Manhole rings and covers shall be 23½ inches in diameter, shall be constructed of cast iron and shall have a minimum of two three-fourths-inch holes in the covers.

(d)

Force mains. Force mains shall be constructed of the following materials:

(1)

Ductile iron pipe conforming to the latest revision of ASA A-21 encased in polyethylene tubing.

(2)

Polyvinyl chloride (PVC) class 150 SDR-26, conforming to the latest revision of ASTM D-2241.

(3)

Polyethylene (PE) plastic pipe (SDR-PR) based on outside diameter conforming to the latest revision of ASTM F714.

(e)

Lift stations. Lift stations should conform to minimum design criteria of the state natural resource conservation commission (TNRCC) and the city's standard specifications on file with the city engineer. An all-weather access road, three-phase service and potable water shall be provided. All structures located aboveground shall be enclosed as approved by the city engineer.

(f)

Testing. All sanitary sewer lines shall be tested in accordance with the city engineer's specifications. All material, labor and equipment necessary for testing shall be provided by the developer. All test results shall be submitted in writing to the city engineer.

(Code 1967, § 27-73(a); Ord. No. 3655, § 3, 7-28-83; Ord. No. 5117, §§ 1, 2, 10-13-88; Ord. No. 5263, § 3, 4-27-89; Ord. No. 7256, § 1, 3-9-95)