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Hilltown TWP Water & Sew Auth Bucks Cnty

Sewage treatment plant, Chalfont, Pennsylvania. NPDES permit PA0058840, in force until Oct 31, 2030. Last 12 months: over a limit 2 times (last June 2026), 27 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (27 values), form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
9 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
June 2026Solids, total suspended, monthly average16 mg/L≤ 10 mg/L60%
June 2026Solids, total suspended, weekly average29 mg/L≤ 15 mg/L93%

Limits in force (32)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendedweekly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 4.17 lb/dall year
Solids, total suspendedweekly average≤ 6.25 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, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .63 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 1.25 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrite + Nitrate total [as N]monthly average≤ 10 mg/Lall year
Nitrite + Nitrate total [as N]monthly average≤ 4.17 lb/dall year
Phosphorus, total [as P]monthly average≤ .5 mg/Lall year
Phosphorus, total [as P]monthly average≤ .2 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. coliinstantaneous maximumreport only (#/100mL)all year
Ultraviolet light transmittancedaily minimumreport only (%)all year
Coliform, fecal generalgeometric mean≤ 50 #/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 50 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLMay–Sep
Coliform, fecal generalinstantaneous maximum≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4.17 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 6.25 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year

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/PA0058840 · MCP: https://passage-data.com/mcp