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Clay Refractories, Augusta, Georgia. NPDES permit GA0002488 expired Oct 31, 2023; its limits still apply. Last 12 months: over a limit 25 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 050 | pH, minimum | 5.3 SU | ≥ 6 SU | — |
| October 2025 | SUM | BOD, 5-day, 20 deg. C, daily average | 311 lb/d | ≤ 140 lb/d | 122% |
| October 2025 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 496 lb/d | ≤ 210 lb/d | 136% |
| November 2025 | 002 | pH, maximum | 8.9 SU | ≤ 8.5 SU | — |
| December 2025 | 002 | pH, maximum | 8.7 SU | ≤ 8.5 SU | — |
| January 2026 | 002 | pH, minimum | 5.8 SU | ≥ 6 SU | — |
| January 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 245 lb/d | ≤ 210 lb/d | 17% |
| February 2026 | 050 | pH, minimum | 5.7 SU | ≥ 6 SU | — |
| February 2026 | SUM | BOD, 5-day, 20 deg. C, daily average | 157 lb/d | ≤ 140 lb/d | 12% |
| February 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 392 lb/d | ≤ 210 lb/d | 87% |
| April 2026 | 002 | pH, maximum | 8.9 SU | ≤ 8.5 SU | — |
| April 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 434 lb/d | ≤ 210 lb/d | 107% |
| May 2026 | 050 | pH, minimum | 5.9 SU | ≥ 6 SU | — |
| May 2026 | SUM | BOD, 5-day, 20 deg. C, daily average | 203 lb/d | ≤ 140 lb/d | 45% |
| May 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 417 lb/d | ≤ 210 lb/d | 99% |
| June 2026 | 050 | Oil & Grease, daily maximum | 26.4 mg/L | ≤ 15 mg/L | 76% |
| June 2026 | 050 | pH, minimum | 5.4 SU | ≥ 6 SU | — |
| June 2026 | SUM | BOD, 5-day, 20 deg. C, daily average | 202 lb/d | ≤ 140 lb/d | 44% |
| June 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 349 lb/d | ≤ 210 lb/d | 66% |
| July 2026 | 050 | pH, minimum | 5.6 SU | ≥ 6 SU | — |
| July 2026 | SUM | BOD, 5-day, 20 deg. C, daily average | 159 lb/d | ≤ 140 lb/d | 14% |
| July 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 252 lb/d | ≤ 210 lb/d | 20% |
| August 2026 | 050 | pH, minimum | 5.7 SU | ≥ 6 SU | — |
| September 2026 | SUM | BOD, 5-day, 20 deg. C, daily average | 217 lb/d | ≤ 140 lb/d | 55% |
| September 2026 | SUM | BOD, 5-day, 20 deg. C, daily maximum | 289 lb/d | ≤ 210 lb/d | 38% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | daily average | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | 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 (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | 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 |
| 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 |
| BOD, 5-day, 20 deg. C | daily average | report only (lb/d) | all year | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 8.5 SU | 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 (lb/d) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | 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 |
| 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 |
| BOD, 5-day, 20 deg. C | daily average | report only (lb/d) | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | 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 (lb/d) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | 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 |
| 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 |
| Color [PT-CO units] | daily average | report only (col unit (pc)) | all year | 050 |
| Color [PT-CO units] | daily maximum | report only (col unit (pc)) | all year | 050 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 050 |
| BOD, 5-day, 20 deg. C | daily average | report only (mg/L) | all year | 050 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 050 |
| pH | minimum | ≥ 6 SU | all year | 050 |
| pH | maximum | ≤ 9 SU | all year | 050 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 050 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 050 |
| Oil & Grease | daily average | ≤ 10 mg/L | all year | 050 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 050 |
| Nitrogen, organic total [as N] | daily average | report only (mg/L) | all year | 050 |
| Nitrogen, organic total [as N] | daily maximum | report only (mg/L) | all year | 050 |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year | 050 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 050 |
| Nitrogen, ammonia total [as N] | daily average | report only (lb/d) | all year | 050 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 050 |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (mg/L) | all year | 050 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 050 |
| Nitrite + Nitrate total [as N] | daily average | report only (mg/L) | all year | 050 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 050 |
| Phosphorus, total [as P] | daily average | report only (mg/L) | all year | 050 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 050 |
| Phosphate, ortho [as P] | daily average | report only (mg/L) | all year | 050 |
| Phosphate, ortho [as P] | daily maximum | report only (mg/L) | all year | 050 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 050 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 050 |
| Color [PT-CO units] | daily average | report only (col unit (pc)) | all year | 051 |
| Color [PT-CO units] | daily maximum | report only (col unit (pc)) | all year | 051 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 051 |
| BOD, 5-day, 20 deg. C | daily average | report only (mg/L) | all year | 051 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 051 |
| pH | minimum | ≥ 6 SU | all year | 051 |
| pH | maximum | ≤ 9 SU | all year | 051 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 051 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 051 |
| Oil & Grease | daily average | ≤ 10 mg/L | all year | 051 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 051 |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year | 051 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 051 |
| Nitrogen, ammonia total [as N] | daily average | report only (lb/d) | all year | 051 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year | 051 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 051 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 051 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 140 lb/d | all year | SUM |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 210 lb/d | all year | SUM |
| Solids, total suspended | daily average | ≤ 226 lb/d | all year | SUM |
| Solids, total suspended | daily maximum | ≤ 339 lb/d | all year | SUM |
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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