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Sewerage Systems, City Of Mustang Ridge, Texas. NPDES permit TX0141143, in force until Apr 29, 2027. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.
| 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 | ≤ 5 mg/L | all year |
| Solids, total suspended | single grab sample | ≤ 30 mg/L | all year |
| Solids, total suspended | daily average | ≤ 2.1 lb/d | all year |
| Nitrogen, ammonia total [as N] | daily average | ≤ 2 mg/L | all year |
| Nitrogen, ammonia total [as N] | single grab sample | ≤ 15 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily average | ≤ .83 lb/d | all year |
| Phosphorus, total [as P] | daily average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | single grab sample | ≤ 6 mg/L | all year |
| Phosphorus, total [as P] | daily average | ≤ .42 lb/d | all year |
| Flow, in conduit or thru treatment plant | daily average | ≤ .05 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | 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 | ≤ 5 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | single grab sample | ≤ 30 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 2.1 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/TX0141143 · MCP: https://passage-data.com/mcp