- (a) Once installed, septic tanks shall have no more than one inch (1") variation in elevation from side to side and end to end.
- (b) Septic tanks shall be constructed to prevent sewage from leaking out of the tank and to prevent the infiltration of water into the tank.
- (c) The bottom of the inlet pipe of a septic tank shall be at least one-eighth inch (1/8") per foot below the bottom of the building sewer pipe unless the wastewater is mechanically lifted.
- (d) Appendix I illustrates the requirements for a septic tank.
- (e) All concrete tanks shall have a data plate permanently affixed to the lid of at least one manhole riser. All data plates shall provide the following information:
- (1) Name of the tank manufacturer;
- (2) Liquid capacity; and
- (3) Date of manufacture.
Added at 16 Ok Reg 1895, eff 6-11-99
Amended at 25 Ok Reg 2318, eff 7-11-08
Amended at 37 Ok Reg 1296, eff 9-15-20
Amended at 41 Ok Reg, Number 23, effective 9-15-24