Sewer Use Policy
Listed below are the more pertinent points covered in the West Knox Utility District “Rules and Regulations of Sewer Use Policy”, however; the information listed below will give the customer a simple guideline to follow when installing sewer lines.
- Acceptable Types of Pipe
- PVC Schedule 40 with solvent weld joints
- Cast iron commercial standard C-S188-59 with pitch coating and rubber gasket
- Minimum Pipe Size
- 4″ I.D
- Minimum Slope
- 1/4″ per 1 foot for 4″ pipe
- 1/8″ per 1 foot for 6″ pipe
- Minimum Cover – 12 inches
- Cleanouts
- Shall be 4″ wye or tee type
- Shall be installed not more than 100′ apart and at every bend greater than 45 degrees
- On the outside of the building being served within 5 linear feet of the exterior wall
- Service lines must be installed on hard, undisturbed trench bottom or trench must be backfilled with sand or gravel firmly tamped to the haunch line (center line) of the pipe
- DO NOT connect gutter drains, surface water drains, etc., to the sewer
- The person making the installation shall request an inspection 24 hours in advance
- An additional fee shall be charged for each inspection trip necessitated by incomplete or unsatisfactory work
- Water and sewer service line must be separated by 10′ horizontally or 1 1/2′ vertically with water line on top