GREAT SALT BAY SANITARY DISTRICT

NPDES permit ME0101516 · Minor 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

0values over a limit
0required values missing, on 0 form(s)
0of 13 forms filed late

Last period with anything received: 2026-08-31.

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 (29)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 67 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 112 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 100 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Solids, total suspendedMO AVG <= 67 lb/d all year
001Solids, total suspendedDAILY MX <= 112 lb/d all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG <= 100 lb/d all year
001Coliform, fecal MF, MFC broth, 44.5 CMO GEO <= 15 #/100mL all year
001Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 50 #/100mL all year
001Flow, in conduit or thru treatment plantMO AVG <= .268 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 1 mg/L all year
001Mercury, total [as Hg]MO AVG <= 20.9 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 31.3 ng/L all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
CMWTemperature, water deg. centigradeDAILY MX report only Apr
CMWConductivityDAILY MX report only Apr
CMWpHMAXIMUM report only Apr
CMWNitrogen, nitrate total [as N]DAILY MX report only Apr
CMWSodium, total [as Na]DAILY MX report only Apr
CMWChloride [as Cl]DAILY MX report only Apr

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