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Allegheny Clarion Valley Dev Corp

Subdividers And Developers, Emlenton, Pennsylvania. NPDES permit PA0221317, in force until Jun 30, 2030. Last 12 months: over a limit 4 times (last February 2026), 26 required values missing, 2 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 101 form A monthly (12 values), outfall 201 form A monthly (14 values), outfall 101 form Q quarterly, outfall 101 form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
14 values over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average7.4 mg/L≤ 2 mg/L270%
November 2025Nitrogen, ammonia total [as N], monthly average9.5 mg/L≤ 6 mg/L58%
January 2026Nitrogen, ammonia total [as N], monthly average9.3 mg/L≤ 6 mg/L55%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average32.3 mg/L≤ 25 mg/L29%

Limits in force (32)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year101
pHinstantaneous minimum≥ 6 SUall year101
pHinstantaneous maximum≤ 9 SUall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Nitrogen, total [as N]quarterly averagereport only (mg/L)all year101
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LMay–Oct101
Nitrogen, ammonia total [as N]monthly average≤ 6 mg/LJan, Feb, Mar, Apr, Nov, Dec101
Phosphorus, total [as P]quarterly averagereport only (mg/L)all year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Chlorine, total residualmonthly average≤ .08 mg/Lall year101
Chlorine, total residualinstantaneous maximum≤ .27 mg/Lall year101
E. coliinstantaneous maximumreport only (#/100mL)all year101
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec101
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep101
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec101
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep101
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year101
pHinstantaneous minimum≥ 6 SUall year201
pHinstantaneous maximum≤ 9 SUall year201
Solids, total suspendedmonthly average≤ 30 mg/Lall year201
Solids, total suspendeddaily maximum≤ 60 mg/Lall year201
Iron, total [as Fe]monthly average≤ 2 mg/Lall year201
Iron, total [as Fe]daily maximum≤ 4 mg/Lall year201
Manganese, total [as Mn]monthly average≤ 1 mg/Lall year201
Manganese, total [as Mn]daily maximum≤ 2 mg/Lall year201
Aluminum, total [as Al]monthly average≤ 4 mg/Lall year201
Aluminum, total [as Al]daily maximum≤ 8 mg/Lall year201
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year201
Chlorine, total residualmonthly average≤ .5 mg/Lall year201
Chlorine, total residualdaily maximum≤ 1 mg/Lall year201
Solids, total dissolveddaily maximumreport only (mg/L)all year201

How strict are these limits?

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

Same industry: the 210 Real Estate permits in Pennsylvania.

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Your permit document is the final word. As JSON: /api/v1/permits/PA0221317 · MCP: https://passage-data.com/mcp