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Minerals, Ground Or Treated, Sandersville, Georgia. NPDES permit GA0002135, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Turbidity | daily average | ≤ 50 NTU | all year | 001 |
| Turbidity | daily maximum | ≤ 75 NTU | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 8.5 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 25 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Oil & Grease | daily average | ≤ 10 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Nitrogen, total [as N] | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, organic total [as N] | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, organic total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | daily average | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 001 |
| Cadmium, total [as Cd] | daily average | report only (lb/d) | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | daily average | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily average | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year | 001 |
| Selenium, total [as Se] | daily average | ≤ .005 mg/L | all year | 001 |
| Selenium, total [as Se] | daily maximum | ≤ .0075 mg/L | all year | 001 |
| Selenium, total [as Se] | daily average | ≤ .096 lb/d | all year | 001 |
| Selenium, total [as Se] | daily maximum | ≤ .144 lb/d | all year | 001 |
| Phosphate, ortho [as P] | daily average | report only (mg/L) | all year | 001 |
| Phosphate, ortho [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | report only (%) | all year | 001 |
| Turbidity | daily average | report only (NTU) | all year | 002 |
| Turbidity | daily maximum | report only (NTU) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 8.5 SU | all year | 002 |
| Solids, total suspended | daily average | ≤ 25 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 002 |
| Oil & Grease | daily average | ≤ 10 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Nitrogen, total [as N] | daily average | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, organic total [as N] | daily average | report only (mg/L) | all year | 002 |
| Nitrogen, organic total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Cadmium, total [as Cd] | daily average | report only (mg/L) | all year | 002 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 002 |
| Cadmium, total [as Cd] | daily average | report only (lb/d) | all year | 002 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 002 |
| Copper, total [as Cu] | daily average | ≤ .028 mg/L | all year | 002 |
| Copper, total [as Cu] | daily maximum | ≤ .042 mg/L | all year | 002 |
| Copper, total [as Cu] | daily average | ≤ .923 lb/d | all year | 002 |
| Copper, total [as Cu] | daily maximum | ≤ 1.36 lb/d | all year | 002 |
| Selenium, total [as Se] | daily average | ≤ .005 mg/L | all year | 002 |
| Selenium, total [as Se] | daily maximum | ≤ .0075 mg/L | all year | 002 |
| Selenium, total [as Se] | daily average | ≤ .163 lb/d | all year | 002 |
| Selenium, total [as Se] | daily maximum | ≤ .245 lb/d | all year | 002 |
| Phosphate, ortho [as P] | daily average | report only (mg/L) | all year | 002 |
| Phosphate, ortho [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | report only (%) | all year | 002 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | report only (%) | all year | 002 |
| Turbidity | daily average | report only (NTU) | all year | 003 |
| Turbidity | daily maximum | report only (NTU) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 8.5 SU | all year | 003 |
| Solids, total suspended | daily average | ≤ 25 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 003 |
| Oil & Grease | daily average | ≤ 10 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Nitrogen, total [as N] | daily average | report only (mg/L) | all year | 003 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, organic total [as N] | daily average | report only (mg/L) | all year | 003 |
| Nitrogen, organic total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (mg/L) | all year | 003 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrite + Nitrate total [as N] | daily average | report only (mg/L) | all year | 003 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Cadmium, total [as Cd] | daily average | report only (mg/L) | all year | 003 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 003 |
| Cadmium, total [as Cd] | daily average | report only (lb/d) | all year | 003 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 003 |
| Copper, total [as Cu] | daily average | ≤ .01 mg/L | all year | 003 |
| Copper, total [as Cu] | daily maximum | ≤ .013 mg/L | all year | 003 |
| Copper, total [as Cu] | daily average | ≤ .033 lb/d | all year | 003 |
| Copper, total [as Cu] | daily maximum | ≤ .044 lb/d | all year | 003 |
| Zinc, total [as Zn] | daily average | ≤ .16 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ .16 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily average | ≤ .53 lb/d | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ .53 lb/d | all year | 003 |
| Selenium, total [as Se] | daily average | ≤ .005 mg/L | all year | 003 |
| Selenium, total [as Se] | daily maximum | ≤ .0075 mg/L | all year | 003 |
| Selenium, total [as Se] | daily average | ≤ .017 lb/d | all year | 003 |
| Selenium, total [as Se] | daily maximum | ≤ .026 lb/d | all year | 003 |
| Phosphate, ortho [as P] | daily average | report only (mg/L) | all year | 003 |
| Phosphate, ortho [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| LC50 Static Renewal 96Hr Acute Ceriodaphnia dubia | minimum | report only (%) | all year | 003 |
| LC50 Static Renewal 96Hr Acute Pimephales promelas | minimum | report only (%) | all year | 003 |
Cited limits by parameter: Georgia's rules and the federal ones.
Same industry: the 15 Stone, Clay, Glass and Concrete Products permits in Georgia.
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