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Kaolin And Ball Clay, Troup, Texas. NPDES permit TX0104175, in force until Dec 2, 2026. Last 12 months: over a limit 3 times (last May 2026), 54 of 212 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| May 2026 | 002 | Solids, total suspended, daily average | 1780 mg/L | ≤ 35 mg/L | 4986% |
| May 2026 | 002 | Solids, total suspended, daily maximum | 1780 mg/L | ≤ 70 mg/L | 2443% |
| May 2026 | 202 | Sulfate, total [as SO4], daily maximum | 1780 mg/L | ≤ 1696 mg/L | 5% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 70 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 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 70 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 |
| pH | minimum | ≥ 6 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| pH | minimum | ≥ 6 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 007 |
| Sulfate, total [as SO4] | daily average | report only (mg/L) | all year | 007 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 007 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 008 |
| pH | maximum | ≤ 9 SU | all year | 008 |
| Solids, total suspended | daily average | ≤ 35 mg/L | all year | 008 |
| Solids, total suspended | daily maximum | ≤ 70 mg/L | all year | 008 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 101 |
| Copper, total [as Cu] | daily average | ≤ .032 mg/L | all year | 101 |
| Copper, total [as Cu] | daily maximum | ≤ .068 mg/L | all year | 101 |
| Nickel, total [as Ni] | daily maximum | ≤ 1.771 mg/L | all year | 101 |
| Zinc, total [as Zn] | daily average | ≤ .319 mg/L | all year | 101 |
| Zinc, total [as Zn] | daily maximum | ≤ .675 mg/L | all year | 101 |
| Aluminum, total [as Al] | daily average | ≤ .834 mg/L | all year | 101 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.765 mg/L | all year | 101 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 8.93 cfs | all year | 101 |
| Solids, total dissolved | daily average | ≤ 4000 mg/L | all year | 101 |
| Solids, total dissolved | daily maximum | ≤ 8480 mg/L | all year | 101 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 102 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 8.93 cfs | all year | 102 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 102 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 102 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 105 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 105 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 105 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 8.93 cfs | all year | 105 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 105 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 105 |
| Sulfate, total [as SO4] | daily average | report only (mg/L) | all year | 106 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 106 |
| Zinc, total [as Zn] | daily maximum | ≤ .675 mg/L | all year | 106 |
| Aluminum, total [as Al] | daily average | ≤ .834 mg/L | all year | 106 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.765 mg/L | all year | 106 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 106 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 106 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 8.93 cfs | all year | 106 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 106 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 106 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 201 |
| Copper, total [as Cu] | daily average | ≤ .032 mg/L | all year | 201 |
| Copper, total [as Cu] | daily maximum | ≤ .068 mg/L | all year | 201 |
| Nickel, total [as Ni] | daily maximum | ≤ 1.771 mg/L | all year | 201 |
| Zinc, total [as Zn] | daily average | ≤ .319 mg/L | all year | 201 |
| Zinc, total [as Zn] | daily maximum | ≤ .675 mg/L | all year | 201 |
| Aluminum, total [as Al] | daily average | ≤ .834 mg/L | all year | 201 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.765 mg/L | all year | 201 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 4.46 cfs | all year | 201 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 8.92 cfs | all year | 201 |
| Solids, total dissolved | daily average | ≤ 4000 mg/L | all year | 201 |
| Solids, total dissolved | daily maximum | ≤ 8480 mg/L | all year | 201 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 202 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 202 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 202 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 4.46 cfs | all year | 202 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 8.92 cfs | all year | 202 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 202 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 202 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 205 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 205 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 205 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 4.46 cfs | all year | 205 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 8.92 cfs | all year | 205 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 205 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 205 |
| Sulfate, total [as SO4] | daily average | report only (mg/L) | all year | 206 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1696 mg/L | all year | 206 |
| Zinc, total [as Zn] | daily maximum | ≤ .675 mg/L | all year | 206 |
| Aluminum, total [as Al] | daily average | ≤ .834 mg/L | all year | 206 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.765 mg/L | all year | 206 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 206 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 206 |
| Flow, in conduit or thru treatment plant | minimum | ≥ 4.46 cfs | all year | 206 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 8.92 cfs | all year | 206 |
| Solids, total dissolved | daily average | report only (mg/L) | all year | 206 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 206 |
| Sulfate, total [as SO4] | daily average | ≤ 69 mg/L | all year | 301 |
| Sulfate, total [as SO4] | daily maximum | ≤ 146 mg/L | all year | 301 |
| Copper, total [as Cu] | daily average | ≤ .029 mg/L | all year | 301 |
| Copper, total [as Cu] | daily maximum | ≤ .061 mg/L | all year | 301 |
| Nickel, total [as Ni] | daily average | ≤ .124 mg/L | all year | 301 |
| Nickel, total [as Ni] | daily maximum | ≤ .264 mg/L | all year | 301 |
| Zinc, total [as Zn] | daily average | ≤ .319 mg/L | all year | 301 |
| Zinc, total [as Zn] | daily maximum | ≤ .675 mg/L | all year | 301 |
| Aluminum, total [as Al] | daily average | ≤ .834 mg/L | all year | 301 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.765 mg/L | all year | 301 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 301 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 301 |
| Flow, in conduit or thru treatment plant | minimum | report only (cfs) | all year | 301 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 4.45 cfs | all year | 301 |
| Solids, total dissolved | daily average | ≤ 346 mg/L | all year | 301 |
| Solids, total dissolved | daily maximum | ≤ 732 mg/L | all year | 301 |
| Sulfate, total [as SO4] | daily average | ≤ 68 mg/L | all year | 302 |
| Sulfate, total [as SO4] | daily maximum | ≤ 145 mg/L | all year | 302 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 302 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 302 |
| Flow, in conduit or thru treatment plant | minimum | report only (cfs) | all year | 302 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 4.45 cfs | all year | 302 |
| Solids, total dissolved | daily average | ≤ 343 mg/L | all year | 302 |
| Solids, total dissolved | daily maximum | ≤ 727 mg/L | all year | 302 |
| Sulfate, total [as SO4] | daily average | ≤ 69 mg/L | all year | 305 |
| Sulfate, total [as SO4] | daily maximum | ≤ 147 mg/L | all year | 305 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 305 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 305 |
| Flow, in conduit or thru treatment plant | minimum | report only (cfs) | all year | 305 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 4.45 cfs | all year | 305 |
| Solids, total dissolved | daily average | ≤ 347 mg/L | all year | 305 |
| Solids, total dissolved | daily maximum | ≤ 735 mg/L | all year | 305 |
| Sulfate, total [as SO4] | daily average | ≤ 68 mg/L | all year | 306 |
| Sulfate, total [as SO4] | daily maximum | ≤ 145 mg/L | all year | 306 |
| Zinc, total [as Zn] | daily average | ≤ .319 mg/L | all year | 306 |
| Zinc, total [as Zn] | daily maximum | ≤ .675 mg/L | all year | 306 |
| Aluminum, total [as Al] | daily average | ≤ .834 mg/L | all year | 306 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.765 mg/L | all year | 306 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 306 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 306 |
| Flow, in conduit or thru treatment plant | minimum | report only (cfs) | all year | 306 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 4.45 cfs | all year | 306 |
| Solids, total dissolved | daily average | ≤ 343 mg/L | all year | 306 |
| Solids, total dissolved | daily maximum | ≤ 727 mg/L | all year | 306 |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 13 Mining and Quarrying of Nonmetallic Minerals permits in Texas.
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