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Sewerage Systems, Dimmit County, Texas. NPDES permit TX0133698, in force until Aug 6, 2031. Last 12 months: over a limit 3 times (last January 2026), 1 of 4 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | E. coli, single grab sample | 2420 CFU/100mL | ≤ 399 CFU/100mL | 507% |
| November 2025 | Solids, total suspended, daily average | 18.7 mg/L | ≤ 15 mg/L | 25% |
| January 2026 | pH, minimum | 3.6 SU | ≥ 6 SU | — |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 4 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily average | ≤ 10 mg/L | all year |
| BOD, 5-day, 20 deg. C | single grab sample | ≤ 35 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily average | ≤ 8.3 lb/d | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year |
| Solids, total suspended | single grab sample | ≤ 60 mg/L | all year |
| Solids, total suspended | daily average | ≤ 13 lb/d | all year |
| Flow, in conduit or thru treatment plant | daily average | ≤ .1 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 |
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/TX0133698 · MCP: https://passage-data.com/mcp