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Aqua Pa Inc

Water Supply, West Chester, Pennsylvania. NPDES permit PA0051365, in force until Feb 28, 2030. Last 12 months: over a limit 2 times (last February 2026), 41 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (41 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026Nitrogen, total [as N], monthly average< 5.4 mg/L≤ 5.1 mg/L6%
February 2026Nitrogen, total [as N], monthly average< 6.1 mg/L≤ 5.1 mg/L20%

Limits in force (41)

ParameterStatisticLimitMonths
Turbiditydaily maximumreport only (NTU)all year
Turbidityinstantaneous maximumreport only (NTU)all year
Oxygen, dissolved [DO]instantaneous minimum≥ 8 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 40 mg/Lall year
Nitrogen, total [as N]monthly average≤ 5.1 mg/Lall year
Nitrogen, total [as N]daily maximum≤ 10.2 mg/Lall year
Nitrogen, total [as N]monthly average≤ 14 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ .8 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 1.6 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 1.766 lb/dall year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly average≤ .27 mg/Lall year
Phosphorus, total [as P]daily maximum≤ .54 mg/Lall year
Phosphorus, total [as P]monthly average≤ .7 lb/dall year
Iron, total [as Fe]monthly average≤ 2 mg/Lall year
Iron, total [as Fe]daily maximum≤ 4 mg/Lall year
Manganese, total [as Mn]monthly average≤ 1 mg/Lall year
Manganese, total [as Mn]daily maximum≤ 2 mg/Lall year
Aluminum, total [as Al]monthly average≤ 4 mg/Lall year
Aluminum, total [as Al]daily maximum≤ 8 mg/Lall year
Dichlorobromomethanemonthly averagereport only (mg/L)all year
Dichlorobromomethanedaily maximumreport only (mg/L)all year
Chloroformmonthly averagereport only (mg/L)all year
Chloroformdaily maximumreport only (mg/L)all year
Chlorodibromomethanemonthly averagereport only (mg/L)all year
Chlorodibromomethanedaily maximumreport only (mg/L)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
Chlorine, total residualmonthly average≤ .35 mg/Lall year
Chlorine, total residualdaily maximum≤ .7 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 9 lb/dall year

How strict are these limits?

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

Same industry: the 214 Water Supply permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0051365 · MCP: https://passage-data.com/mcp