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Sligo Boro Auth Clarion Cnty

Sewerage Systems, Sligo, Pennsylvania. NPDES permit PA0221643, in force until Nov 30, 2030. Last 12 months: over a limit 6 times (last May 2026), 22 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (22 values), form Q quarterly, form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 0 of 17 reports late

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

Period endingParameterReportedLimit
October 2025Coliform, fecal general, geometric mean> 11 #/100mL≤ 2000 #/100mL
October 2025Coliform, fecal general, instantaneous maximum> 2420 #/100mL≤ 10000 #/100mL
December 2025Coliform, fecal general, instantaneous maximum> 2420 #/100mL≤ 10000 #/100mL
January 2026Coliform, fecal general, geometric mean> 268 #/100mL≤ 2000 #/100mL
January 2026Coliform, fecal general, instantaneous maximum> 2420 #/100mL≤ 10000 #/100mL
May 2026Coliform, fecal general, instantaneous maximum> 2420 #/100mL≤ 1000 #/100mL

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 4 mg/Lall 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
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 27.5 lb/dall year
Solids, total suspendedweekly average≤ 41.3 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Nitrogen, total [as N]quarterly averagereport only (mg/L)all year
Nitrogen, total [as N]quarterly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]quarterly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]quarterly averagereport only (lb/d)all year
Phosphorus, total [as P]quarterly averagereport only (mg/L)all year
Phosphorus, total [as P]quarterly averagereport only (lb/d)all year
Iron, total [as Fe]annual averagereport only (mg/L)all year
Iron, total [as Fe]annual averagereport only (lb/d)all year
Manganese, total [as Mn]annual averagereport only (mg/L)all year
Manganese, total [as Mn]annual averagereport only (lb/d)all year
Aluminum, total [as Al]annual averagereport only (mg/L)all year
Aluminum, total [as Al]annual averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. coliinstantaneous maximumreport only (#/100mL)all year
Ultraviolet light transmittancemonthly averagereport only (%)all year
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 22.9 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 36.7 lb/dall year

How strict are these limits?

Cited limits by parameter: Pennsylvania'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/PA0221643 · MCP: https://passage-data.com/mcp