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Steel Pipe And Tubes, major discharger, Ambridge, Pennsylvania. NPDES permit PA0006335, in force until Jan 31, 2027. Last 12 months: over a limit 4 times (last April 2026), 12 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Oil & Grease, daily maximum | 17.3 mg/L | ≤ 10 mg/L | 73% |
| February 2026 | Oil & Grease, daily maximum | 21 mg/L | ≤ 10 mg/L | 110% |
| March 2026 | Oil & Grease, daily maximum | 13.2 mg/L | ≤ 10 mg/L | 32% |
| April 2026 | Oil & Grease, daily maximum | 17.1 mg/L | ≤ 10 mg/L | 71% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 001 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | quarterly average | report only (mg/L) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | quarterly average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 002 |
| Oil & Grease | quarterly average | ≤ 15 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 002 |
| Copper, total [as Cu] | quarterly average | report only (mg/L) | all year | 002 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | quarterly average | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 002 |
| Lead, total [as Pb] | quarterly average | report only (mg/L) | all year | 002 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 002 |
| Zinc, total [as Zn] | quarterly average | report only (mg/L) | all year | 002 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 002 |
| Aluminum, total [as Al] | quarterly average | report only (mg/L) | all year | 002 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | quarterly average | report only (mg/L) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | quarterly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 003 |
| Oil & Grease | quarterly average | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 30 mg/L | all year | 003 |
| Copper, total [as Cu] | quarterly average | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 003 |
| Iron, total [as Fe] | quarterly average | report only (mg/L) | all year | 003 |
| Iron, total [as Fe] | daily maximum | ≤ 7 mg/L | all year | 003 |
| Lead, total [as Pb] | quarterly average | report only (mg/L) | all year | 003 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | quarterly average | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 003 |
| Aluminum, total [as Al] | quarterly average | report only (mg/L) | all year | 003 |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 101 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 15 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 101 |
| Solids, total suspended | monthly average | ≤ 186.48 lb/d | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 539.92 lb/d | all year | 101 |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year | 101 |
| Oil & Grease | daily maximum | ≤ 134.98 lb/d | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| Chlorine, total residual | monthly average | ≤ .5 mg/L | all year | 101 |
| Chlorine, total residual | daily maximum | ≤ 1 mg/L | all year | 101 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 85 Primary Metal Industries permits in Pennsylvania.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/PA0006335 · MCP: https://passage-data.com/mcp