1121.04 SANITARY SEWER REQUIREMENTS.

   (a)   Protection of Water Supplies. There shall be no physical connection between a public or private potable water supply system and a sewer, or appurtenance thereto, which would permit the passage of any sewage into the potable supply.

   (b)   General Requirements.

(1)   Design capacity. In determining the required capacities of sanitary sewers, the following factors should be considered:

A.   Maximum hourly sewage flow.

B.   Additional maximum sewage or waste flow from industrial plants.

C.   Ground water infiltration.

D.   Topography of area.

E.   Location of waste treatment plant.

F.   Depth of excavation.

G.   Pumping requirements.

(2)   Treatment requirements. All sewage must be treated before discharge into the water of the State or any drainage facility.

A.   Wastes from commercial laundries and manufacturing processes are considered as industrial wastes and must be given special treatment and consideration. Wastes from laboratories are corrosive wastes and must be given special consideration. (See Chapter BB51-53 OBC.) Waste from swimming pool filter backwash must be given special consideration.

B.   Roof drainage, foundation drainage, cooling waste, swimming pool water, or other clear water wastes need no treatment and shall not be connected to the sanitary sewer system.

   (c)   Sanitary Sewer Mains.

(1)   Pipe size. In general, the minimum size of sanitary sewers may be used as lateral sewers for apartments, mobile home parks, camps, schools, restaurants and other semi-public operations, provided their hydraulic capacity is not exceeded because of short run-off periods (high peak flows).

(2)   Depth. In general, sewers shall be sufficiently deep so as to receive sewage from basements and to prevent freezing.

(3)   Alignments. Sewers twenty-four inches or less shall be laid with straight alignment between manholes.

   (d)   Sanitary Sewer Individual Service.

(1)   The developer shall provide each lot with an individual sanitary sewer service.

(2)   The developer shall install the sanitary sewer lateral in a suitable manner from the sewer main to one foot beyond the right-of-way line.

(3)   The location of each service line shall be clearly marked with an "S" and printed in a concrete curb before the concrete hardens.
(Ord. 141-83. Passed 9-26-83.)