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Grove City Boro Mercer Cnty

Sewage treatment plant, major discharger, Grove City, Pennsylvania. NPDES permit PA0020257, in force until Oct 31, 2030. Last 12 months: no values over a limit, 92 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (46 values), form Q quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (62)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 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≤ 20 mg/Lall year
Solids, total suspendedweekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 555 lb/dall year
Solids, total suspendedweekly average≤ 835 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]monthly average≤ 9 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 250 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 80 lb/dMay–Oct
Phosphorus, total [as P]quarterly averagereport only (mg/L)all year
Phosphorus, total [as P]quarterly averagereport only (lb/d)all year
Boron, total [as B]monthly averagereport only (mg/L)all year
Boron, total [as B]daily maximumreport only (mg/L)all year
Boron, total [as B]monthly averagereport only (lb/d)all year
Boron, total [as B]daily maximumreport only (lb/d)all year
Copper, total [as Cu]daily maximumreport only (ug/L)all year
Copper, total [as Cu]monthly averagereport only (ug/L)all year
Copper, total [as Cu]monthly averagereport only (lb/d)all year
Copper, total [as Cu]daily maximumreport only (lb/d)all year
Zinc, total [as Zn]monthly averagereport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]monthly averagereport only (lb/d)all year
Zinc, total [as Zn]daily maximumreport only (lb/d)all year
Butyl benzyl phthalatequarterly averagereport only (ug/L)all year
Butyl benzyl phthalatedaily maximumreport only (ug/L)all year
Butyl benzyl phthalatequarterly averagereport only (lb/d)all year
Butyl benzyl phthalatedaily maximumreport 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 transmittancedaily minimumreport only (%)all year
Ultraviolet light transmittancemonthly averagereport only (%)all year
Cyanide, free availablemonthly averagereport only (ug/L)all year
Cyanide, free availabledaily maximumreport only (ug/L)all year
Cyanide, free availablemonthly averagereport only (lb/d)all year
Cyanide, free availabledaily maximumreport only (lb/d)all year
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year
Perfluorooctanesulfonatedaily maximumreport only (ng/L)all year
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all year
Solids, total dissolvedmonthly averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Solids, total dissolvedmonthly averagereport only (lb/d)all year
Solids, total dissolveddaily maximumreport only (lb/d)all year
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 300 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 450 lb/dall year

New limits from Nov 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Butyl benzyl phthalate, daily maximum0.139 lb/dnew0.007 lb/d (3 values, 3 below detection)—
Butyl benzyl phthalate, daily maximum5 ug/Lnew0.5 ug/L (3 values, 3 below detection)—
Butyl benzyl phthalate, quarterly average5 ug/Lnew0.5 ug/L (3 values, 3 below detection)—
Butyl benzyl phthalate, quarterly total0.139 lb/dnew——
Cyanide, free available, daily maximum0.45 lb/dnew0.04 lb/d (7 values, 1 below detection)0.0889×
Cyanide, free available, daily maximum16.1 ug/Lnew2 ug/L (7 values, 1 below detection)0.124×
Cyanide, free available, monthly average0.24 lb/dnew0.02 lb/d (7 values, 2 below detection)0.0833×
Cyanide, free available, monthly average8.72 ug/Lnew2 ug/L (7 values, 2 below detection)0.229×

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/PA0020257 · MCP: https://passage-data.com/mcp