Utilities Board of the City of Gulf Shores

NPDES permit AL0055841 · Major POTW · effective, expires 2027-01-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 27 forms filed late

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

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among AL permits in EPA's filings — check your permit).

Limits in force (99)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN = 6 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 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 <= 1000 lb/d all year
001Solids, total suspendedWKLY AVG <= 1501 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 1.5 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 33.3 lb/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 50 lb/d all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 3 mg/L all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 4.5 mg/L all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 100 lb/d all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 150 lb/d all year
001Nitrite + Nitrate total [as N]MO AVG <= 10 mg/L all year
001Nitrite + Nitrate total [as N]WKLY AVG <= 15 mg/L all year
001Nitrite + Nitrate total [as N]MO AVG <= 333 lb/d all year
001Nitrite + Nitrate total [as N]WKLY AVG <= 500 lb/d all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]WKLY AVG report only all year
001Enterococci: group D, MF trans, M-E, EIAMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Enterococci: group D, MF trans, M-E, EIAMO AVG <= 35 #/100mL May, Jun, Jul, Aug, Sep, Oct
001Enterococci: group D, MF trans, M-E, EIADAILY MX <= 275 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
001Enterococci: group D, MF trans, M-E, EIADAILY MX <= 158 #/100mL 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
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 4 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 6 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 133 lb/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 200 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Pass/Fail Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP <= 0 pass=0;fail=1 Oct
001Pass/Fail Static 48Hr Acute Cyprinodon variegatusSINGSAMP <= 0 pass=0;fail=1 Oct
003Oxygen, dissolved [DO]DAILY MN report only all year
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedWKLY AVG <= 45 mg/L all year
003Solids, total suspendedMO AVG <= 1000 lb/d all year
003Solids, total suspendedWKLY AVG <= 1501 lb/d all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedWKLY AVG report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedWKLY AVG report only all year
003Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L all year
003Nitrogen, ammonia total [as N]WKLY AVG <= 1.5 mg/L all year
003Nitrogen, ammonia total [as N]MO AVG <= 33.3 lb/d all year
003Nitrogen, ammonia total [as N]WKLY AVG <= 50 lb/d all year
003Nitrogen, Kjeldahl, total [as N]MO AVG <= 3 mg/L all year
003Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 4.5 mg/L all year
003Nitrogen, Kjeldahl, total [as N]MO AVG <= 100 lb/d all year
003Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 150 lb/d all year
003Nitrite + Nitrate total [as N]MO AVG <= 10 mg/L all year
003Nitrite + Nitrate total [as N]WKLY AVG <= 15 mg/L all year
003Nitrite + Nitrate total [as N]MO AVG <= 333 lb/d all year
003Nitrite + Nitrate total [as N]WKLY AVG <= 500 lb/d all year
003Phosphorus, total [as P]MO AVG report only all year
003Phosphorus, total [as P]WKLY AVG report only all year
003Phosphorus, total [as P]MO AVG report only all year
003Phosphorus, total [as P]WKLY AVG report only all year
003Enterococci: group D, MF trans, M-E, EIAMO AVG <= 35 #/100mL May, Jun, Jul, Aug, Sep, Oct
003Enterococci: group D, MF trans, M-E, EIAMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
003Enterococci: group D, MF trans, M-E, EIADAILY MX <= 158 #/100mL May, Jun, Jul, Aug, Sep, Oct
003Enterococci: group D, MF trans, M-E, EIADAILY MX <= 275 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003BOD, carbonaceous [5 day, 20 C]MO AVG <= 4 mg/L all year
003BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 6 mg/L all year
003BOD, carbonaceous [5 day, 20 C]MO AVG <= 133 lb/d all year
003BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 200 lb/d all year
003BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
003BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
003BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
003BOD, carbonaceous [5 day, 20 C]WKLY AVG report only all year
003BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
003Solids, suspended percent removalMO AV MN >= 85 % all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedDAILY MX report only all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
004Nitrite + Nitrate total [as N]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Enterococci: group D, MF trans, M-E, EIADAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004BOD, 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