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Nonferrous Wiredrawing & Insulating, Newington, New Hampshire. NPDES permit NH0001490 expired Jun 30, 2024; its limits still apply. Last 12 months: no values over a limit, 2 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jul | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 80.6 deg F | all year | 007 |
| pH | minimum | ≥ 6.5 SU | all year | 007 |
| pH | maximum | ≤ 8 SU | all year | 007 |
| pH | maximum | report only (SU) | Jul | 007 |
| Salinity | daily maximum | report only (ppk) | Jul | 007 |
| Salinity | daily maximum | report only (ppk) | Jul | 007 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jul | 007 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jul | 007 |
| Copper, total [as Cu] | monthly average | ≤ .37 mg/L | all year | 007 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 007 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jul | 007 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jul | 007 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jul | 007 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jul | 007 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jul | 007 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jul | 007 |
| Zinc, total [as Zn] | monthly average | ≤ 8.6 mg/L | all year | 007 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 007 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jul | 007 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jul | 007 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .06 MGD | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .16 MGD | all year | 007 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 007 |
| Nitrogen, Ammonia Total | daily maximum | report only (mg/L) | Jul | 007 |
| Nitrogen, Ammonia Total | daily maximum | report only (mg/L) | Jul | 007 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 2 lb/d | all year | 008 |
| Solids, total suspended | daily maximum | ≤ 1.5 lb/d | all year | 008 |
| Oil & Grease | daily maximum | ≤ 2.2 lb/d | all year | 008 |
| Total production - days | daily maximum | report only (d/mo) | all year | 008 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (mg/L) | all year | 008 |
| Flow, process wastewater | daily maximum | report only (MGD) | all year | 008 |
Cited limits by parameter: New Hampshire'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/NH0001490 · MCP: https://passage-data.com/mcp