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Washington TWP Muni Auth Clarion Cnty

Sewage treatment plant, Marble, Pennsylvania. NPDES permit PA0023591, in force until Jul 31, 2030. Last 12 months: over a limit once (last January 2026), 35 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (35 values), form Q quarterly (1 value)
Last report on file
June 2026
Oct 2024 – Sep 2025
15 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
January 2026Nitrogen, ammonia total [as N], monthly average14.49 mg/L≤ 10.5 mg/L38%

Limits in force (40)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 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
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≤ 21.3 lb/dall year
Solids, total suspendedweekly average≤ 32 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 10.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.4 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2.5 lb/dMay–Oct
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Copper, total [as Cu]monthly averagereport only (ug/L)all year
Copper, total [as Cu]weekly averagereport only (ug/L)all year
Copper, total [as Cu]monthly averagereport only (lb/d)all year
Copper, total [as Cu]weekly averagereport only (lb/d)all year
Lead, total [as Pb]monthly averagereport only (ug/L)all year
Lead, total [as Pb]weekly averagereport only (ug/L)all year
Lead, total [as Pb]monthly averagereport only (lb/d)all year
Lead, total [as Pb]weekly averagereport only (lb/d)all year
Zinc, total [as Zn]monthly averagereport only (ug/L)all year
Zinc, total [as Zn]weekly averagereport only (ug/L)all year
Zinc, total [as Zn]monthly averagereport only (lb/d)all year
Zinc, total [as Zn]weekly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
E. coliinstantaneous maximumreport only (#/100mL)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≤ 17.7 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 28.3 lb/dall year

New limits from Aug 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Copper, total [as Cu], monthly average16.4 ug/Lnew33.9 ug/L (9 values)2.07×
Copper, total [as Cu], monthly average0.011 lb/dnew7 lb/d (9 values)636×
Copper, total [as Cu], weekly average0.017 lb/dnew9 lb/d (9 values)529×
Copper, total [as Cu], weekly average24.6 ug/Lnew34.5 ug/L (9 values)1.4×
Lead, total [as Pb], monthly average0.0041 lb/dnew0.07 lb/d (9 values)17.1×
Lead, total [as Pb], weekly average0.0061 lb/dnew0.08 lb/d (9 values)13.1×
Zinc, total [as Zn], monthly average0.099 lb/dnew10 lb/d (9 values, 1 below detection)101×
Zinc, total [as Zn], weekly average0.148 lb/dnew20 lb/d (9 values)135×
Lead, total [as Pb], monthly average5.81 ug/Lnew0.35 ug/L (9 values)0.0602×
Lead, total [as Pb], weekly average8.71 ug/Lnew0.35 ug/L (9 values)0.0402×
Zinc, total [as Zn], monthly average140 ug/Lnew65.3 ug/L (9 values, 1 below detection)0.466×
Zinc, total [as Zn], weekly average210 ug/Lnew83.6 ug/L (9 values)0.398×

How strict are these limits?

Cited limits by parameter: Pennsylvania's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0023591 · MCP: https://passage-data.com/mcp