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Sewage treatment plant, Queen City, Texas. NPDES permit TX0136123, in force until Feb 9, 2028. Last 12 months: over a limit 3 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Solids, total suspended, daily average | 24.17 mg/L | ≤ 20 mg/L | 21% |
| April 2026 | Solids, total suspended, daily average | 29.93 mg/L | ≤ 20 mg/L | 50% |
| May 2026 | Solids, total suspended, daily average | 24.1 mg/L | ≤ 20 mg/L | 21% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 2 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily average | ≤ 20 mg/L | all year |
| BOD, 5-day, 20 deg. C | single grab sample | ≤ 65 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily average | ≤ 5 lb/d | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily average | ≤ 20 mg/L | all year |
| Solids, total suspended | single grab sample | ≤ 65 mg/L | all year |
| Solids, total suspended | daily average | ≤ 5 lb/d | all year |
| Flow, in conduit or thru treatment plant | daily average | ≤ .03 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/TX0136123 · MCP: https://passage-data.com/mcp