Okla. Admin. Code § 252:606-6-83
If either Cd(YMS) or Cd(SS) exceeds its respective criterion, a water quality-based permit limit is required for that mineral constituent. WLAYMS and WLASS are calculated for each mineral constituent exhibiting reasonable potential. Background levels used in calculating agriculture-based WLAs are described in OAC 252:606-6-10 through 6-13 and 6-16.
Added at 41 Ok Reg, Number 23, effective 9-15-24