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Federal facility (Commercial Physical Research), Milford, Connecticut. NPDES permit CT0090182, in force until Aug 31, 2028. Last 12 months: no values over a limit, 2 required values missing, 2 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | Apr, Oct | 001 |
| pH | instantaneous maximum | ≤ 9 SU | Apr, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .78 mg/L | Apr, Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Oil petroleum, total recoverable | instantaneous maximum | report only (mg/L) | Apr, Oct | 001 |
| Surfactants [MBAS] | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 324000 gal/d | Apr, Oct | 001 |
| Chlorine, total residual | monthly average | ≤ .096 mg/L | Apr, Oct | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .192 mg/L | Apr, Oct | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | Apr, Oct | 001 |
| Flow | daily maximum | ≤ 324000 gal/d | Apr, Oct | 001 |
| LC50 Static 48Hr Acute Cyprinodon variegatus | daily maximum | report only (%) | Oct | 001 |
| LC50 Static 48Hr Acute Cyprinodon variegatus | daily maximum | report only (%) | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Nov, Dec | 001 |
| Noael Static 48Hr Acute Mysid. Bahia | daily maximum | report only (%) | Oct | 001 |
| Noael Static 48Hr Acute Mysid. Bahia | daily maximum | report only (%) | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Nov, Dec | 001 |
| pH | instantaneous minimum | ≥ 6 SU | Apr, Oct | 002 |
| pH | instantaneous maximum | ≤ 9 SU | Apr, Oct | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Apr, Oct | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .78 mg/L | Apr, Oct | 002 |
| Phosphorus, total [as P] | daily average | report only (mg/L) | Apr, Oct | 002 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Apr, Oct | 002 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Apr, Oct | 002 |
| Oil petroleum, total recoverable | instantaneous maximum | report only (mg/L) | Apr, Oct | 002 |
| Surfactants [MBAS] | daily maximum | report only (mg/L) | Apr, Oct | 002 |
| Flow, maximum during 24 hr period | daily maximum | ≤ 2736000 gal/d | Apr, Oct | 002 |
| Chlorine, total residual | monthly average | ≤ .096 mg/L | Apr, Oct | 002 |
| Chlorine, total residual | instantaneous maximum | ≤ .192 mg/L | Apr, Oct | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | Apr, Oct | 002 |
| Flow | daily maximum | ≤ 2736000 gal/d | Apr, Oct | 002 |
| LC50 Static 48Hr Acute Cyprinodon variegatus | daily maximum | report only (%) | Oct | 002 |
| LC50 Static 48Hr Acute Cyprinodon variegatus | daily maximum | report only (%) | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Nov, Dec | 002 |
| Noael Static 48Hr Acute Mysid. Bahia | daily maximum | report only (%) | Oct | 002 |
| Noael Static 48Hr Acute Mysid. Bahia | daily maximum | report only (%) | Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Nov, Dec | 002 |
Cited limits by parameter: Connecticut'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/CT0090182 · MCP: https://passage-data.com/mcp