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Le Roy (V)

Sewage treatment plant, major discharger, Le Roy, New York. NPDES permit NY0030546 expired Jun 30, 2025; its limits still apply. Last 12 months: over a limit 6 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form M monthly (27 values), form Q quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 2 required values missing, 2 of 16 reports late

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

Period endingParameterReportedLimitOver by
November 2025Phosphorus, total [as P], monthly average1.14 mg/L≤ 1 mg/L14%
January 2026BOD, 5-day, percent removal, monthly average minimum79 %≥ 85 %40%
March 2026BOD, 5-day, percent removal, monthly average minimum74.2 %≥ 85 %72%
March 2026Nitrogen, ammonia total [as N], monthly average9.6 mg/L≤ 8.5 mg/L13%
April 2026BOD, 5-day, percent removal, monthly average minimum68 %≥ 85 %113%
May 2026BOD, 5-day, percent removal, monthly average minimum60 %≥ 85 %167%

Limits in force (33)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 250 lb/dall year
BOD, 5-day, 20 deg. C7-day average≤ 375 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 250 lb/dall year
Solids, total suspended7-day average≤ 375 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, settleabledaily maximum≤ .3 mL/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 8.5 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.6 mg/LJun–Oct
Nitrogen, ammonia total [as N]monthly average≤ 71 lb/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 47 lb/dJun–Oct
Phosphorus, total [as P]monthly average≤ 1 mg/LMay–Oct
Phosphorus, total [as P]monthly average≤ 1 mg/LJan, Feb, Mar, Apr, Nov, Dec
Phosphorus, total [as P]monthly average≤ 8.34 lb/dMay–Oct
Phosphorus, total [as P]monthly average≤ 8.34 lb/dJan, Feb, Mar, Apr, Nov, Dec
Flow, in conduit or thru treatment plantmonthly average≤ 1 MGDall year
Chlorine, total residualmonthly averagereport only (mg/L)May–Oct
Chlorine, total residualdaily maximum≤ .03 mg/LMay–Oct
Chlorine, total residualmonthly averagereport only (lb/d)May–Oct
Chlorine, total residualdaily maximum≤ .25 lb/dMay–Oct
Mercury, total [as Hg]daily maximum≤ 50 ng/Lall year
Mercury, total [as Hg]daily maximumreport only (ng/L)all year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Oct
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Oct
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

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/NY0030546 · MCP: https://passage-data.com/mcp