AMBLER BORO MONTGOMERY CNTY

NPDES permit PA0026603 · Major POTW · effective, expires 2030-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

1values over a limit
49required values missing, on 4 form(s)
0of 15 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 (63)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 7 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 <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 1626 lb/d all year
001Solids, total suspendedWKLY AVG <= 2439 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 <= 1.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 4.5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 81 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 244 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]WKLY AVG report only all year
001Thallium, total [as Tl]QRTR AVG report only all year
001Zinc, total [as Zn]QRTR AVG report only all year
001Antimony, total [as Sb]QRTR AVG report only all year
001Aluminum, total [as Al]MO AVG <= 1.538 mg/L all year
001Aluminum, total [as Al]DAILY MX <= 2.5 mg/L all year
001Aluminum, total [as Al]MO AVG <= 83.3 lb/d all year
001Aluminum, total [as Al]DAILY MX <= 135.5 lb/d all year
001Phosphate, ortho [as P]MO AVG <= 4 mg/L Jan, Feb, Mar, Nov, Dec
001Phosphate, ortho [as P]MO AVG <= 1 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphate, ortho [as P]MO AVG <= 216.8 lb/d Jan, Feb, Mar, Nov, Dec
001Phosphate, ortho [as P]MO AVG <= 54.2 lb/d Apr, May, Jun, Jul, Aug, Sep, Oct
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001E. coliINST MAX report only all year
001Ultraviolet light transmittanceINST MIN report only all year
001Cyanide, free availableQRTR AVG report only all year
001Toxicity [chronic], Ceriodaphnia dubiaDAILY MX report only all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX report only 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 <= 14.6 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 7.3 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 21.9 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 10.95 mg/L May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 791.5 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 395.7 lb/d May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 1187.2 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 593.6 lb/d May, Jun, Jul, Aug, Sep, Oct
001TU Static 7Day Chronic Ceriodaphnia dubiaDAILY MX report only all year
001Static 7Day Chronic Pimephales PromelasDAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX report only all year
002Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Iron, dissolved [as Fe]DAILY MX report only all year
002Coliform, fecal generalDAILY MX report only all year
002BOD, carbonaceous [5 day, 20 C]DAILY 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