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Nonferrous Rolling And Drawing, major discharger, Attleboro, Massachusetts. NPDES permit MA0001791 expired Dec 31, 2015; its limits still apply. Last 12 months: over a limit 9 times (last September 2026), 3 of 60 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit |
|---|---|---|---|---|
| March 2026 | 002 | pH, minimum | ≥ 6.16 SU | ≥ 6.5 SU |
| April 2026 | 002 | pH, minimum | ≥ 6.25 SU | ≥ 6.5 SU |
| May 2026 | 002 | pH, maximum | ≤ 8.56 SU | ≤ 8.3 SU |
| May 2026 | 002 | pH, minimum | ≥ 6.22 SU | ≥ 6.5 SU |
| May 2026 | 004 | pH, minimum | 6.24 SU | ≥ 6.5 SU |
| June 2026 | 002 | pH, minimum | ≥ 6.21 SU | ≥ 6.5 SU |
| July 2026 | 002 | pH, minimum | ≥ 6.15 SU | ≥ 6.5 SU |
| August 2026 | 002 | pH, minimum | ≥ 6.46 SU | ≥ 6.5 SU |
| September 2026 | 002 | pH, minimum | ≥ 6.21 SU | ≥ 6.5 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 8.3 SU | all year | 002 |
| pH | maximum | ≤ 8.3 SU | all year | 002 |
| Chloroform | monthly average | report only (ug/L) | all year | 002 |
| Chloroform | daily maximum | report only (ug/L) | all year | 002 |
| trans-1,2-Dichloroethylene | daily maximum | ≤ 100 ug/L | all year | 002 |
| Vinyl chloride | monthly average | report only (ug/L) | all year | 002 |
| Vinyl chloride | daily maximum | report only (ug/L) | all year | 002 |
| Trichloroethylene | daily maximum | ≤ 5 ug/L | all year | 002 |
| Priority Pollutants | total | report only (ug/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 250000 gal/d | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 002 |
| cis-1,2-Dichloroethylene | monthly average | report only (ug/L) | all year | 002 |
| cis-1,2-Dichloroethylene | daily maximum | ≤ 70 ug/L | all year | 002 |
| Tetrachloroethene | monthly average | report only (ug/L) | all year | 002 |
| Tetrachloroethene | daily maximum | report only (ug/L) | all year | 002 |
| Trichloroethene | monthly average | report only (ug/L) | all year | 002 |
| Trichloroethene | daily maximum | ≤ 5 ug/L | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | maximum | ≤ 8.3 SU | all year | 004 |
| Chloroform | monthly average | report only (ug/L) | all year | 004 |
| Chloroform | daily maximum | report only (ug/L) | all year | 004 |
| Vinyl chloride | monthly average | report only (mg/L) | all year | 004 |
| Vinyl chloride | daily maximum | report only (mg/L) | all year | 004 |
| Trichloroethylene | monthly average | report only (ug/L) | all year | 004 |
| Trichloroethylene | daily maximum | report only (ug/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 004 |
| cis-1,2-Dichloroethylene | monthly average | report only (ug/L) | all year | 004 |
| cis-1,2-Dichloroethylene | daily maximum | report only (ug/L) | all year | 004 |
| Trichloroethene | monthly average | report only (ug/L) | all year | 004 |
| Trichloroethene | daily maximum | report only (ug/L) | all year | 004 |
| pH | minimum | report only (SU) | all year | 007 |
| pH | maximum | report only (SU) | all year | 007 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | all year | 007 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 007 |
| Lead, total [as Pb] | monthly average | report only (ug/L) | all year | 007 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year | 007 |
| Nickel, total [as Ni] | monthly average | report only (ug/L) | all year | 007 |
| Nickel, total [as Ni] | daily maximum | report only (ug/L) | all year | 007 |
| Silver, total [as Ag] | monthly average | report only (ug/L) | all year | 007 |
| Silver, total [as Ag] | maximum | report only (ug/L) | all year | 007 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | all year | 007 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year | 007 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | all year | 007 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 007 |
Cited limits by parameter: Massachusetts's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/MA0001791 · MCP: https://passage-data.com/mcp