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Kaolin And Ball Clay, Toomsboro, Georgia. NPDES permit GA0050300 expired Apr 30, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Turbidity | daily average | ≤ 50 NTU | all year |
| Turbidity | daily maximum | ≤ 75 NTU | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | daily average | ≤ 46 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 69 mg/L | all year |
| Oil & Grease | daily average | ≤ 10 mg/L | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Phosphorus, total [as P] | daily average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | daily maximum | ≤ 1.5 mg/L | all year |
| Cadmium, total [as Cd] | daily average | report only (mg/L) | all year |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | daily average | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily average | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year |
| Selenium, total [as Se] | daily average | report only (mg/L) | all year |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
Cited limits by parameter: Georgia's rules and the federal ones.
Same industry: the 55 Mining and Quarrying of Nonmetallic Minerals permits in Georgia.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/GA0050300 · MCP: https://passage-data.com/mcp