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Upper Saucon STP

Sewage treatment plant, major discharger, Center Valley, Pennsylvania. NPDES permit PA0053147, in force until Jul 31, 2030. Last 12 months: no values over a limit, 36 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (36 values), outfall 001 form Q quarterly (4 values), outfall 002 form S twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
4 values over a limit, 2 required values missing, 1 of 18 reports late

Limits in force (54)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 625 lb/dall year001
Solids, total suspendedweekly average≤ 938 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 187 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 62 lb/dMay–Oct001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Copper, total [as Cu]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly averagereport only (lb/d)all year001
Copper, total [as Cu]daily maximumreport only (lb/d)all year001
Zinc, total [as Zn]quarterly averagereport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .0082 mg/Lall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly averagereport only (mg/L)all year001
Chlorine, total residualinstantaneous maximum≤ .472 mg/Lall year001
E. coliinstantaneous maximumreport only (#/100mL)all year001
Solids, total dissolvedquarterly averagereport only (mg/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep001
Coliform, fecal generalinstantaneous maximum≤ 10000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 208 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 417 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 312 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 625 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximumreport only (mg/L)all year002
Nitrogen, total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002

New limits from Aug 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Di[2-ethylhexyl] phthalate [DEHP], monthly average0.0022 mg/Ltighter0.00296 mg/L (9 values, 9 below detection)—

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/PA0053147 · MCP: https://passage-data.com/mcp