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Iron And Steel Forgings, Houston, Texas. NPDES permit TX0113972, in force until Dec 19, 2027. Last 12 months: over a limit 3 times (last January 2026), 12 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Nitrogen, ammonia total [as N], daily average | 3.1 mg/L | ≤ 3 mg/L | 3% |
| January 2026 | Solids, total suspended, daily average | 16.2 mg/L | ≤ 15 mg/L | 8% |
| January 2026 | Solids, total suspended, daily maximum | 78 mg/L | ≤ 40 mg/L | 95% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 55 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 105 deg F | all year | 003 |
| Oxygen, dissolved [DO] | monthly minimum | ≥ 4 mg/L | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 003 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3 mg/L | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | all year | 003 |
| Copper, total [as Cu] | daily average | ≤ .016 mg/L | all year | 003 |
| Copper, total [as Cu] | daily maximum | ≤ .034 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | daily average | ≤ .03 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .06 MGD | all year | 003 |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year | 003 |
| Chlorine, total residual | monthly maximum | ≤ 4 mg/L | all year | 003 |
| Enterococci | daily average | ≤ 126 CFU/100mL | all year | 003 |
| Enterococci | daily maximum | ≤ 399 CFU/100mL | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 10 mg/L | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 25 mg/L | all year | 003 |
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/TX0113972 · MCP: https://passage-data.com/mcp