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Sewage treatment plant, major discharger, Kilgore, Texas. NPDES permit TX0026557 expired Aug 19, 2026; its limits still apply. Last 12 months: over a limit once (last April 2026), 1 of 17 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| April 2026 | Flow, in conduit or thru treatment plant, 2-hour peak | 5694 gal/min | ≤ 5555 gal/min | 3% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 4 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 10 mg/L | Jan, Feb, Dec | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 25 mg/L | Jan, Feb, Dec | 002 |
| BOD, 5-day, 20 deg. C | daily average | ≤ 250 lb/d | Jan, Feb, Dec | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 002 |
| Solids, total suspended | daily average | ≤ 375 lb/d | all year | 002 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 2 mg/L | Mar–Nov | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | Mar–Nov | 002 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 50 lb/d | Mar–Nov | 002 |
| Copper, total [as Cu] | daily average | ≤ .017 mg/L | all year | 002 |
| Copper, total [as Cu] | daily maximum | ≤ .035 mg/L | all year | 002 |
| Copper, total [as Cu] | daily average | ≤ .43 lb/d | 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 |
| Flow, in conduit or thru treatment plant | 2-hour peak | ≤ 5555 gal/min | all year | 002 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 3 MGD | all year | 002 |
| Chlorine, total residual | instantaneous maximum | < .1 mg/L | all year | 002 |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year | 002 |
| E. coli | daily average | ≤ 126 CFU/100mL | all year | 002 |
| E. coli | daily maximum | ≤ 399 CFU/100mL | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 10 mg/L | Mar–Nov | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 25 mg/L | Mar–Nov | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 250 lb/d | Mar–Nov | 002 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Whole Effluent Toxicity [WET] - C. dubia | 7-day minimum | ≥ 95 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - C. dubia | monthly average minimum | ≥ 95 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - C. dubia | 7-day minimum | ≥ 80 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - C. dubia | monthly average minimum | ≥ 80 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - P. promelas | 7-day minimum | ≥ 80 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - P. promelas | monthly average minimum | ≥ 80 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - P. promelas | 7-day minimum | ≥ 95 % | all year | TX2 |
| Whole Effluent Toxicity [WET] - P. promelas | monthly average minimum | ≥ 95 % | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX2 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX2 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX2 |
| Whole effluent toxicity - retest #1 | single sample | report only (pass=0;fail=1) | all year | TXA |
| Whole effluent toxicity - retest #2 | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute D. Pulex | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Pimephales promelas | single sample | report only (pass=0;fail=1) | all year | TXA |
Cited limits by parameter: Texas's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TX0026557 · MCP: https://passage-data.com/mcp