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Valves And Pipe Fittings, Houston, Texas. NPDES permit TX0072524, in force until May 11, 2027. Last 12 months: no values over a limit. 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 | ≤ 15 mg/L | all year |
| Solids, total suspended | single grab sample | ≤ 60 mg/L | all year |
| Solids, total suspended | daily average | ≤ .62 lb/d | all year |
| Nitrogen, ammonia total [as N] | daily average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | single grab sample | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily average | report only (lb/d) | all year |
| Flow, in conduit or thru treatment plant | daily average | ≤ .005 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 |
| Enterococci | daily average | ≤ 35 CFU/100mL | all year |
| Enterococci | single grab sample | ≤ 104 CFU/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | single grab sample | ≤ 35 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ .42 lb/d | all year |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 17 Fabricated Metal Products permits in Texas.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/TX0072524 · MCP: https://passage-data.com/mcp