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Industrial or other facility, Colchester, Vermont. NPDES permit VT0001333 expired Sep 30, 2026; its limits still apply. Last 12 months: no values over a limit, 60 required values missing, 16 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Turbidity | monthly average | ≤ 10 NTU | all year | 001 |
| pH | minimum | ≥ 6.5 SU | all year | 001 |
| pH | maximum | ≤ 8.5 SU | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Jul–Sep | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Jul–Sep | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Jul–Sep | 001 |
| Phosphorus, total [as P] | monthly average | ≤ .8 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .5 MGD | all year | 001 |
| Turbidity | monthly average | ≤ 10 NTU | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 8.5 SU | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ .8 mg/L | all year | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 4 MGD | all year | 002 |
| Metals, total | daily maximum | report only (mg/L) | all year | 002 |
Cited limits by parameter: Vermont'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/VT0001333 · MCP: https://passage-data.com/mcp