SOUTH BERWICK SEWER DISTRICT

NPDES permit ME0100820 · Major POTW · effective, expires 2030-06-30 · 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

0values over a limit
0required values missing, on 0 form(s)
2of 11 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (58)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 14 mg/L Jun, Jul, Aug, Sep
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 22 mg/L Jun, Jul, Aug, Sep
001BOD, 5-day, 20 deg. CMO AVG <= 142 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CMO AVG <= 63 lb/d Jun, Jul, Aug, Sep
001BOD, 5-day, 20 deg. CDAILY MX <= 236 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CDAILY MX <= 106 lb/d Jun, Jul, Aug, Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 95 mg/L Jun, Jul, Aug, Sep
001BOD, 5-day, 20 deg. CWKLY AVG <= 213 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001BOD, 5-day, 20 deg. CWKLY AVG <= 95 lb/d Jun, Jul, Aug, Sep
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedMO AVG <= 14 mg/L Jun, Jul, Aug, Sep
001Solids, total suspendedDAILY MX <= 50 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedDAILY MX <= 22 mg/L Jun, Jul, Aug, Sep
001Solids, total suspendedMO AVG <= 142 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedMO AVG <= 63 lb/d Jun, Jul, Aug, Sep
001Solids, total suspendedDAILY MX <= 236 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedDAILY MX <= 106 lb/d Jun, Jul, Aug, Sep
001Solids, total suspendedWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedWKLY AVG <= 20 mg/L Jun, Jul, Aug, Sep
001Solids, total suspendedWKLY AVG <= 213 lb/d Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, total suspendedWKLY AVG <= 95 lb/d Jun, Jul, Aug, Sep
001Solids, settleableDAILY MX <= .3 mL/L all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]ROLL AVG <= 15 lb/d Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG <= 4.8 lb/d May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only May, Jun, Jul, Aug, Sep
001Coliform, fecal MF, MFC broth, 44.5 CMO AVG <= 14 #/100mL all year
001Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 34 #/100mL all year
001Priority PollutantsVALUE report only all year
001Flow, in conduit or thru treatment plantMO AVG <= .567 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .1 mg/L all year
001EnterococciMO AVG <= 8 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001EnterococciDAILY MX <= 54 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Mercury, total [as Hg]MO AVG <= 4.5 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 6.8 ng/L all year
001BOD, 5-day, percent removalMO AV MN >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001Solids, suspended percent removalMO AV MN >= 85 % Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaVALUE report only all year
001Noel Statre 10Day Chronic Salvel. SalmonidDAILY MN report only all year
001NOAEL Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only all year
001NOAEL Static 48Hr Acute Salvel. SalmonidDAILY MN 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