WHITEMARSH TWP AUTH MONTGOMERY CNTY

NPDES permit PA0026298 · Major POTW · effective, expires 2029-01-31 · 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

12values over a limit
0required values missing, on 0 form(s)
0of 15 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, carbonaceous [5 day, 20 C] (5), Nitrogen, ammonia total [as N] (5), Coliform, fecal general (2).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (44)

OutfallParameterStatisticLimitMonths
002Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG report only all year
002BOD, 5-day, 20 deg. CMO AVG report only all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedWKLY AVG <= 45 mg/L all year
002Solids, total suspendedMO AVG <= 500 lb/d all year
002Solids, total suspendedWKLY AVG <= 750 lb/d all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedMO AVG report only all year
002Nitrogen, total [as N]MO AVG report only all year
002Nitrogen, ammonia total [as N]MO AVG <= 20 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 333 lb/d all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Copper, total [as Cu]QRTR AVG report only all year
002Thallium, total [as Tl]QRTR AVG report only all year
002Zinc, total [as Zn]QRTR AVG report only all year
002Aluminum, total [as Al]QRTR AVG report only all year
002AcroleinQRTR AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualMO AVG <= .5 mg/L all year
002Chlorine, total residualINST MAX <= 1.3 mg/L all year
002E. coliINST MAX report only all year
002PCBs Wet Weather AnalysisDAILY MX report only all year
002PCBs Dry Weather AnalysisDAILY MX report only all year
002Toxicity [chronic], Ceriodaphnia dubiaDAILY MX report only all year
002Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX report only all year
002Solids, total dissolvedQRTR AVG <= 1000 mg/L all year
002Solids, total dissolvedDAILY MX <= 2000 mg/L all year
002Coliform, fecal generalGEO MEAN <= 200 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
002Coliform, fecal generalGEO MEAN <= 200 #/100mL May, Jun, Jul, Aug, Sep
002Coliform, fecal generalINST MAX <= 1000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
002Coliform, fecal generalINST MAX <= 1000 #/100mL May, Jun, Jul, Aug, Sep
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 417 lb/d all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 667 lb/d all year
002BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
002BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
002TU Static 7Day Chronic Ceriodaphnia dubiaDAILY MX report only all year
002Static 7Day Chronic Pimephales PromelasDAILY MX 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