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Sewage treatment plant, Calverton, New York. NPDES permit NY0025453 expired Sep 30, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 023 |
| Flow rate | monthly average | ≤ .1 MGD | all year | 023 |
| pH | minimum | ≥ 6.5 SU | all year | 023 |
| pH | maximum | ≤ 8.5 SU | all year | 023 |
| Nitrogen, total [as N] | daily maximum | ≤ 10 mg/L | all year | 023 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 023 |
| Chlorine, total residual | daily maximum | ≤ 2 mg/L | all year | 023 |
| Solids, total dissolved | daily maximum | ≤ 1000 mg/L | all year | 023 |
| Nitrogen, total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, nitrite total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, nitrite total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, nitrite total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, nitrate total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, nitrate total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, nitrate total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, Kjeldahl, total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, Kjeldahl, total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, Kjeldahl, total [as N] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, ammonia, total [as NH3] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, ammonia, total [as NH3] | quarterly maximum | report only (mg/L) | all year | GMW |
| Nitrogen, ammonia, total [as NH3] | quarterly maximum | report only (mg/L) | all year | GMW |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | all year | GMW |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | all year | GMW |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | all year | GMW |
| Water level relative to mean sea level | single sample | report only (ft) | all year | GMW |
| Water level relative to mean sea level | single sample | report only (ft) | all year | GMW |
| Water level relative to mean sea level | single sample | report only (ft) | all year | GMW |
Cited limits by parameter: New York'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/NY0025453 · MCP: https://passage-data.com/mcp