Appendix C
Okla. Admin. Code tit. 252, ch. 641, app. C
Pipe Specifications for On-Site Sewage Treatment Systems
Effective Sep 15, 202441 Ok Reg, Number 23Added at 16 Ok Reg 1895, eff 6-11-99; Revoked and reenacted at 19 Ok Reg 1704, eff 6-13-02; Revoked and reenacted at 21 Ok Reg 1618, eff 6-11-04; Revoked and reenacted at 25 Ok Reg 2318, eff 7-11-08; Revoked and reenacted at 29 Ok Reg 1051, eff 7-1-12; Revoked and reenacted at 37 Ok Reg 1296, eff 9-15-20; Amended at 41 Ok Reg, Number 23, effective 9-15-24Department of Environmental Quality
Added at 16 Ok Reg 1895, eff 6-11-99
Revoked and reenacted at 19 Ok Reg 1704, eff 6-13-02
Revoked and reenacted at 21 Ok Reg 1618, eff 6-11-04
Revoked and reenacted at 25 Ok Reg 2318, eff 7-11-08
Revoked and reenacted at 29 Ok Reg 1051, eff 7-1-12
Revoked and reenacted at 37 Ok Reg 1296, eff 9-15-20
Amended at 41 Ok Reg, Number 23, effective 9-15-24