LOWER FREDERICK TWP MONTGOMERY CNTY

NPDES permit PA0050105 · Minor POTW · effective, expires 2030-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
29required values missing, on 1 form(s)
0of 14 forms filed late

Last period with anything received: 2026-06-30. Most often over: Nitrogen, ammonia total [as N] (1).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among PA permits in EPA's filings — check your permit).

Limits in force (30)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedWKLY AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 83 lb/d all year
001Solids, total suspendedWKLY AVG <= 125 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 3 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 12.5 lb/d all year
001Phosphorus, total [as P]MO AVG <= .5 mg/L all year
001Phosphorus, total [as P]MO AVG <= 2.1 lb/d all year
001Ultraviolet light intensityDAILY MN report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= .5 mg/L all year
001Solids, total dissolvedQRTR AVG <= 1000 mg/L all year
001Coliform, fecal generalGEO MEAN <= 200 #/100mL all year
001Coliform, fecal generalINST MAX <= 1000 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 22.5 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 63 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 94 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states