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Lancaster City

Sewage treatment plant, major discharger, Lancaster, Pennsylvania. NPDES permit PA0026743 expired Jul 31, 2015; its limits still apply. Last 12 months: over a limit 2 times (last February 2026), 34 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (34 values), form Z yearly (5 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 13 reports late

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

Period endingParameterReportedLimitOver by
December 2025Chlorine, total residual, instantaneous maximum.43 mg/L≤ .42 mg/L2%
February 2026Chlorine, total residual, instantaneous maximum.56 mg/L≤ .42 mg/L33%

Limits in force (46)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 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
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 8026 lb/dall year
Solids, total suspendedmaximum weekly average≤ 12040 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, ammonia total [as N]monthly average≤ 2.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 669 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 2007 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year
Phosphorus, total [as P]monthly average≤ 535 lb/dall 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≤ .13 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ .42 mg/Lall year
Nitrogen, Totalmonthly totalreport only (lb)all year
Nitrogen, Totalannual totalreport only (lb)all year
Nitrogen, Totalmonthly totalreport only (lb)all year
Nitrogen, Totalannual total≤ 620348 lball year
Nitrogen, Ammonia Totalmonthly totalreport only (lb)all year
Nitrogen, Ammonia Totalannual totalreport only (lb)all year
Nitrogen, Kjeldahl Totalmonthly totalreport only (lb)all year
Nitrite Plus Nitrate Totalmonthly totalreport only (lb)all year
Phosphorus, Totalmonthly totalreport only (lb)all year
Phosphorus, Totalannual totalreport only (lb)all year
Phosphorus, Totalmonthly totalreport only (lb)all year
Phosphorus, Totalannual total≤ 77381 lball year
Coliform, fecal generalgeometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalgeometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 22.5 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6689 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4013 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 10702 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]maximum weekly average≤ 6020 lb/dMay–Oct

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/PA0026743 · MCP: https://passage-data.com/mcp