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Sewage treatment plant, Franklin, Texas. NPDES permit TX0021318, in force until Apr 3, 2029. Last 12 months: over a limit 9 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, carbonaceous [5 day, 20 C], daily average | 33.45 mg/L | ≤ 30 mg/L | 12% |
| October 2025 | Solids, total suspended, daily average | 106.45 mg/L | ≤ 90 mg/L | 18% |
| October 2025 | pH, maximum | 9.2 SU | ≤ 9 SU | — |
| November 2025 | BOD, carbonaceous [5 day, 20 C], daily average | 40.825 mg/L | ≤ 30 mg/L | 36% |
| December 2025 | Nitrogen, ammonia total [as N], daily average | 6.62 mg/L | ≤ 6 mg/L | 10% |
| February 2026 | pH, maximum | 9.2 SU | ≤ 9 SU | — |
| April 2026 | Solids, total suspended, daily average | 94.225 mg/L | ≤ 90 mg/L | 5% |
| May 2026 | pH, maximum | 9.5 SU | ≤ 9 SU | — |
| August 2026 | Solids, total suspended, daily average | 103 mg/L | ≤ 90 mg/L | 14% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 4 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily average | ≤ 90 mg/L | all year |
| Solids, total suspended | daily average | ≤ 225 lb/d | all year |
| Nitrogen, ammonia total [as N] | daily average | ≤ 6 mg/L | all year |
| Nitrogen, ammonia total [as N] | single grab sample | ≤ 15 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily average | ≤ 15 lb/d | all year |
| Flow, in conduit or thru treatment plant | daily average | ≤ .3 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year |
| Chlorine, total residual | monthly maximum | ≤ 4 mg/L | all year |
| E. coli | daily average | ≤ 126 CFU/100mL | all year |
| E. coli | single grab sample | ≤ 399 CFU/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 30 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | single grab sample | ≤ 100 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 75 lb/d | all year |
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/TX0021318 · MCP: https://passage-data.com/mcp