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Sewage treatment plant, major discharger, Dallas, Texas. NPDES permit TX0022802 expired Apr 15, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| 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 | ≤ 23644 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 4 mg/L | Jan, Feb, Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 2 mg/L | Apr–Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7 mg/L | Jan, Feb, Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7 mg/L | Apr–Nov | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 6305 lb/d | Jan, Feb, Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3152 lb/d | Apr–Nov | 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 | ≤ 281250 gal/min | all year | 001 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 189 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 | ≤ 63 CFU/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 200 CFU/100mL | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 7 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 17 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 11034 lb/d | all year | 001 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 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 | ≤ 438 lb/d | all year | 002 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 2 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 58 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 | ≤ 11390 gal/min | all year | 002 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 3.5 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 | ≤ 5 mg/L | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 20 mg/L | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 146 lb/d | all year | 002 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 6 mg/L | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 003 |
| Solids, total suspended | daily average | ≤ 23644 lb/d | all year | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 2 mg/L | Apr–Nov | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 4 mg/L | Jan, Feb, Mar, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7 mg/L | Apr–Nov | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7 mg/L | Jan, Feb, Mar, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3152 lb/d | Apr–Nov | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 6305 lb/d | Jan, Feb, Mar, Dec | 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 |
| Flow, in conduit or thru treatment plant | 2-hour peak | ≤ 281250 gal/min | all year | 003 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 189 MGD | all year | 003 |
| Chlorine, total residual | instantaneous maximum | < .1 mg/L | all year | 003 |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year | 003 |
| E. coli | daily average | ≤ 63 CFU/100mL | all year | 003 |
| E. coli | daily maximum | ≤ 200 CFU/100mL | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 7 mg/L | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 17 mg/L | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 11034 lb/d | all year | 003 |
| Flow, in conduit or thru treatment plant | annual average | ≤ 189 MGD | all year | 101 |
| Flow, in conduit or thru treatment plant | 2-hour peak | ≤ 281250 gal/min | all year | 101 |
| IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX1 |
| IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX1 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 7-day minimum | report only (%) | all year | TX1 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average minimum | report only (%) | all year | TX1 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 7-day minimum | report only (%) | all year | TX1 |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average minimum | report only (%) | all year | TX1 |
| 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/TX0022802 · MCP: https://passage-data.com/mcp