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Mifflinburg Boro Union Cnty

Sewage treatment plant, major discharger, Mifflinburg, Pennsylvania. NPDES permit PA0028461, in force until Apr 30, 2027. Last 12 months: no values over a limit, 92 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (45 values), outfall 001 form Z yearly (5 values), outfall 002 form S twice a year
Renewal application due
Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 15 reports late

Limits in force (62)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 4 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 350 lb/dall year001
Solids, total suspendedweekly average≤ 525 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, total suspendeddaily maximumreport only (lb/d)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 7.8 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2.6 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 11 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 3.9 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 91 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 30 lb/dMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 128 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 45 lb/dMay–Oct001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)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]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (lb/d)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (lb/d)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (lb/d)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport 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
E. colidaily maximumreport only (#/100mL)all year001
Nitrogen, Totalmonthly totalreport only (lb)all year001
Nitrogen, Totalannual totalreport only (lb)all year001
Nitrogen, Totalannual total≤ 25570 lball year001
Nitrogen, Ammonia Totalmonthly totalreport only (lb)all year001
Nitrogen, Ammonia Totalannual totalreport only (lb)all year001
Nitrogen, Kjeldahl Totalmonthly totalreport only (lb)all year001
Nitrite Plus Nitrate Totalmonthly totalreport only (lb)all year001
Phosphorus, Totalmonthly totalreport only (lb)all year001
Phosphorus, Totalannual totalreport only (lb)all year001
Phosphorus, Totalannual total≤ 3409 lball year001
Ultraviolet light dosageminimumreport only (mJ/cm2)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≤ 8.5 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 12 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 99 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 292 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 140 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 467 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximumreport only (mg/L)all year002

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/PA0028461 · MCP: https://passage-data.com/mcp