ROCKLAND CITY OF

NPDES permit ME0100595 · Major POTW · administratively continued, expires 2021-07-31 · 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.

This permit expired on 2021-07-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

3values over a limit
0required values missing, on 0 form(s)
0of 48 forms filed late

Last period with anything received: 2026-08-31. Most often over: Solids, total suspended (2), pH (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among ME permits in EPA's filings — check your permit).

Limits in force (56)

OutfallParameterStatisticLimitMonths
001Flow rate, instantaneousDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 68 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 90 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 1884 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX <= 6463 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 81 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 2243 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 52 mg/L all year
001Solids, total suspendedDAILY MX <= 71 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG <= 1443 lb/d all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX <= 11276 lb/d all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedWKLY AVG <= 66 mg/L all year
001Solids, total suspendedWKLY AVG <= 1813 lb/d all year
001Solids, settleableDAILY MX <= .3 mL/L all year
001Coliform, fecal MF, MFC broth, 44.5 CMO GEO <= 15 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 200 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 50 #/100mL May, Jun, Jul, Aug, Sep
001Coliform, fecal MF, MFC broth, 44.5 CDAILY MX report only May, Jun, Jul, Aug, Sep, Oct, Nov
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO TOTAL report only all year
001Flow, in conduit or thru treatment plantMO TOTAL report only all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualDAILY MX <= .24 mg/L all year
001Chlorine, total residualDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 1 mg/L all year
001Mercury, total [as Hg]MO AVG <= 6 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 9 ng/L all year
001OverflowsMO TOTAL report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002BOD, 5-day, 20 deg. CDAILY MX <= 1131 lb/d all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedDAILY MX <= 2376 lb/d all year
002Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 200 #/100mL May, Jun, Jul, Aug, Sep, Oct, Nov
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO TOTAL report only all year
002Chlorine, total residualDAILY MX <= 1 mg/L all year
002OverflowsMO TOTAL 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