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Sewage treatment plant, major discharger, Waco, Texas. NPDES permit TX0026506, in force until Jul 11, 2030. Last 12 months: over a limit 45 times (last July 2026), 3 of 17 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Oxygen, dissolved [DO], monthly minimum | 5.9 mg/L | ≥ 6 mg/L | 2% |
| November 2025 | Solids, total suspended, daily maximum | 62 mg/L | ≤ 40 mg/L | 55% |
| December 2025 | Solids, total suspended, daily maximum | 64 mg/L | ≤ 40 mg/L | 60% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], daily average | 16.52 mg/L | ≤ 10 mg/L | 65% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], daily maximum | 167 mg/L | ≤ 25 mg/L | 568% |
| January 2026 | Nitrogen, ammonia total [as N], daily average | 1655.14 lb/d | ≤ 1126 lb/d | 47% |
| January 2026 | Nitrogen, ammonia total [as N], daily average | 9.21 mg/L | ≤ 3 mg/L | 207% |
| January 2026 | Nitrogen, ammonia total [as N], daily maximum | 23.9 mg/L | ≤ 10 mg/L | 139% |
| January 2026 | Solids, total suspended, daily average | 41.2 mg/L | ≤ 15 mg/L | 175% |
| January 2026 | Solids, total suspended, daily average | 8454 lb/d | ≤ 5630 lb/d | 50% |
| January 2026 | Solids, total suspended, daily maximum | 900 mg/L | ≤ 40 mg/L | 2150% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], daily average | 10.79 mg/L | ≤ 10 mg/L | 8% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], daily maximum | 37 mg/L | ≤ 25 mg/L | 48% |
| February 2026 | E. coli, daily maximum | 435.2 CFU/100mL | ≤ 399 CFU/100mL | 9% |
| February 2026 | Nitrogen, ammonia total [as N], daily average | 5.43 mg/L | ≤ 3 mg/L | 81% |
| February 2026 | Nitrogen, ammonia total [as N], daily maximum | 21.4 mg/L | ≤ 10 mg/L | 114% |
| February 2026 | Solids, total suspended, daily maximum | 74 mg/L | ≤ 40 mg/L | 85% |
| March 2026 | Nitrogen, ammonia total [as N], daily average | 4.25 mg/L | ≤ 3 mg/L | 42% |
| March 2026 | Nitrogen, ammonia total [as N], daily maximum | 10.8 mg/L | ≤ 10 mg/L | 8% |
| April 2026 | E. coli, daily maximum | 816.4 CFU/100mL | ≤ 399 CFU/100mL | 105% |
| April 2026 | Nitrogen, ammonia total [as N], daily average | 1712.78 lb/d | ≤ 1126 lb/d | 52% |
| April 2026 | Nitrogen, ammonia total [as N], daily average | 9.15 mg/L | ≤ 3 mg/L | 205% |
| April 2026 | Nitrogen, ammonia total [as N], daily maximum | 16.5 mg/L | ≤ 10 mg/L | 65% |
| April 2026 | Solids, total suspended, daily maximum | 79 mg/L | ≤ 40 mg/L | 98% |
| May 2026 | E. coli, daily maximum | 816.4 CFU/100mL | ≤ 399 CFU/100mL | 105% |
| May 2026 | Nitrogen, ammonia total [as N], daily average | 5.58 mg/L | ≤ 3 mg/L | 86% |
| May 2026 | Nitrogen, ammonia total [as N], daily maximum | 14.4 mg/L | ≤ 10 mg/L | 44% |
| May 2026 | Solids, total suspended, daily maximum | 45 mg/L | ≤ 40 mg/L | 13% |
| June 2026 | BOD, carbonaceous [5 day, 20 C], daily average | 38.67 mg/L | ≤ 10 mg/L | 287% |
| June 2026 | BOD, carbonaceous [5 day, 20 C], daily average | 8710.36 lb/d | ≤ 3753 lb/d | 132% |
| June 2026 | BOD, carbonaceous [5 day, 20 C], daily maximum | 67 mg/L | ≤ 25 mg/L | 168% |
| June 2026 | E. coli, daily average | 247 CFU/100mL | ≤ 126 CFU/100mL | 96% |
| June 2026 | E. coli, daily maximum | 1553.1 CFU/100mL | ≤ 399 CFU/100mL | 289% |
| June 2026 | Nitrogen, ammonia total [as N], daily average | 12.24 mg/L | ≤ 3 mg/L | 308% |
| June 2026 | Nitrogen, ammonia total [as N], daily average | 2781.55 lb/d | ≤ 1126 lb/d | 147% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | 17.7 mg/L | ≤ 10 mg/L | 77% |
| June 2026 | Solids, total suspended, daily average | 37.1 mg/L | ≤ 15 mg/L | 147% |
| June 2026 | Solids, total suspended, daily average | 8557 lb/d | ≤ 5630 lb/d | 52% |
| June 2026 | Solids, total suspended, daily maximum | 147 mg/L | ≤ 40 mg/L | 268% |
| July 2026 | BOD, carbonaceous [5 day, 20 C], daily average | 11.13 mg/L | ≤ 10 mg/L | 11% |
| July 2026 | BOD, carbonaceous [5 day, 20 C], daily maximum | 67 mg/L | ≤ 25 mg/L | 168% |
| July 2026 | E. coli, daily maximum | 1732.9 CFU/100mL | ≤ 399 CFU/100mL | 334% |
| July 2026 | Nitrogen, ammonia total [as N], daily average | 5.85 mg/L | ≤ 3 mg/L | 95% |
| July 2026 | Nitrogen, ammonia total [as N], daily maximum | 27.9 mg/L | ≤ 10 mg/L | 179% |
| July 2026 | Solids, total suspended, daily maximum | 66 mg/L | ≤ 40 mg/L | 65% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 001 |
| Solids, total suspended | daily average | ≤ 5630 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 1126 lb/d | 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 |
| Flow, in conduit or thru treatment plant | 2-hour peak | ≤ 57800 gal/min | all year | 001 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 45 MGD | all year | 001 |
| Chlorine, total residual | instantaneous maximum | < .1 mg/L | all year | 001 |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year | 001 |
| E. coli | daily average | ≤ 126 CFU/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 399 CFU/100mL | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 10 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 3753 lb/d | all year | 001 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX1 |
| 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/TX0026506 · MCP: https://passage-data.com/mcp