Part III. Permit Requirements Section A. Effluent Limitations This section applies to II facilities that discharge into water in the state, and all Level III and Level IV facilities. Numeric effluent limitations applicable to all Level II facilities that discharge into water in the state, and all Level III and Level IV facilities: Daily Daily Sample Monitoring Parameter Average Maximum Type Frequency1 Limitation Limitations Flow (Million Gallons Estimate or Report Report 1/day per Day) Total Suspended N/A 90 mg/L Grab Solids Inorganic Suspended Report N/A Grab 1/month Solids (mg/L) Total Residual N/A 0.1 mg/L Grab 1/day2 Chlorine pH (Standard Units) 6.0 minimum 9.0 maximum Grab 1/week 1 Monitoring frequency for Level II authorizations shall be once every six months with the exception of flow monitoring which shall be conducted daily. 2 Monitoring for total residual chlorine is required only when the effluent being discharged is chlorinated. Numeric effluent limitations applicable to all Level II, Level III, and Level IV facilities discharging to perennial streams with a head water flow greater than 2.5 cubic feet per second (cfs) and to all other water bodies: Daily Daily Sample Monitoring Average Maximum Parameter Type Frequency1 Limitations Limitations 5.0 mg/L Dissolved Oxygen N/A Composite2 1/week minimum Carbonaceous 250 lbs/day Biochemical N/A and Report Grab 1/month Oxygen Demand mg/L (5-day) Ammonia N/A 2.0 mg/L Grab 1/month Nitrogen 1 Monitoring frequency for Level II authorizations shall be once every six months.
Part III. Permit Requirements Section A. Effluent Limitations This section applies to II facilities that discharge into water in the state, and all Level III and Level IV facilities. Numeric effluent limitations applicable to all Level II facilities that discharge into water in the state, and all Level III and Level IV facilities: Parameter Daily Average Limitation Daily Maximum Limitations Sample Type Monitoring Frequency1 Flow (Million Gallons per Day) Report Report Estimate or 1/day Total Suspended Solids N/A 90 mg/L Grab Inorganic Suspended Solids N/A Report (mg/L) Grab 1/month Total Residual Chlorine N/A 0.1 mg/L Grab 1/day2 pH (Standard Units) 6.0 minimum 9.0 maximum Grab 1/week 1 Monitoring frequency for Level II authorizations shall be once every six months with the exception of flow monitoring which shall be conducted daily. 2 Monitoring for total residual chlorine is required only when the effluent being discharged is chlorinated. Numeric effluent limitations applicable to all Level II, Level III, and Level IV facilities discharging to perennial streams with a head water flow greater than 2.5 cubic feet per second (cfs) and to all other water bodies: Parameter Daily Average Limitations Daily Maximum Limitations Sample Type Monitoring Frequency1 Dissolved Oxygen 5.0 mg/L minimum N/A Composite2 1/week Carbonaceous Biochemical Oxygen Demand (5-day) N/A 250 lbs/day and Report mg/L Grab 1/month Ammonia Nitrogen N/A 2.0 mg/L Grab 1/month 1 Monitoring frequency for Level II authorizations shall be once every six months.
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