Wasteload allocations for implementation of human health and raw water

criteria for toxic substances to protect the Public and Private Water Supply beneficial use 32 [REVOKED] If either Cd(FFW) or Cd(RAW) exceeds its associated criterion, a water quality-based permit limit is required for that substance. Background levels used in calculating WLAFFW and WLARAW are described in OAC 252:690-3-10 through 3-13 and 3-15. If a pollutant's background level exceeds either CFFW or CRAW, the affected WLA is set equal to that criterion. Equations G-2 and G-3 are used to calculate WLAFFW and WLARAW, respectively. For discharges to a stream located less than five stream miles upstream of a public water supply intake and for discharges to a lake located within one mile of a public water supply intake, WLAFFW is set equal to CFFW for any pollutant detected in the discharge.