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Castorland (V)

Sewage treatment plant, Castorland, New York. NPDES permit NY0033511, in force until May 31, 2029. Last 12 months: over a limit 4 times (last April 2026), 1 of 13 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (22 values), form AN yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 13 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, percent removal, minimum52.5 %≥ 65 %36%
March 2026Flow, in conduit or thru treatment plant, monthly average.14 MGD≤ .075 MGD87%
March 2026Solids, suspended percent removal, minimum44.6 %≥ 60 %39%
April 2026Flow, in conduit or thru treatment plant, monthly average.126 MGD≤ .075 MGD68%

Limits in force (23)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 28.1 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 40.7 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 70 mg/Lall year
Solids, total suspended7-day average≤ 105 mg/Lall year
Solids, total suspendedmonthly average≤ 43.8 lb/dall year
Solids, total suspended7-day average≤ 65.7 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, settleabledaily maximum≤ .3 mL/Lall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .075 MGDall year
Chlorine, total residualdaily maximum≤ 2 mg/LMay–Oct
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct
BOD, 5-day, percent removalminimum≥ 65 %all year
Solids, suspended percent removalminimum≥ 60 %all year

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/NY0033511 · MCP: https://passage-data.com/mcp