All homes must be connected to the city's central sanitary sewer system. The following minimum standards apply to sanitary sewer extensions within the city:
(1) 
Main Lines.
a. 
Minimum diameter: Six inches.
b. 
Minimum depth: Four feet, zero inches.
c. 
Material.
1. 
Pipe: Vitrified clay or PVC SDR 35.
2. 
Class: Extra strength. Air test required.
3. 
Joints: Premolded urethane, polyester, or neoprene.
(2) 
Manholes.
a. 
Size: Four feet, zero inches inside diameter.
b. 
Spacing: 300 feet maximum.
c. 
Material: Concrete; brick, or fiberglass (except in pavement).
d. 
Wall thickness: Six inches.
(3) 
Services.
a. 
Pipe diameter: Four inches.
b. 
Material: Same as main lines.
c. 
Fittings required: Wye, bend, and plug.
d. 
Stack required: Where sewer depth exceeds six feet, zero inches.
e. 
Marking: "As built" plans required showing locations.
(4) 
Backfill.
Same as for water systems.
(5) 
Location.
In easement behind house, five feet off of easement line. May be located in the street for unusual situations.
(Ordinance 83-150-3, § 6(E), adopted 7/26/1983)