Gwinnett County Board of Commissioners

NPDES permit GA0038130 · Major POTW · effective, expires 2026-12-31 · 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 48 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 GA permits in EPA's filings — check your permit).

Limits in force (62)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMINIMUM report only all year
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitMAXIMUM report only all year
001TurbidityMO AVG <= .5 NTU all year
001Oxygen, dissolved [DO]MINIMUM >= 7 mg/L all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 18 mg/L all year
001Oxygen demand, chem. [high level] [COD]WKLY AVG <= 27 mg/L all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 3412 kg/d all year
001Oxygen demand, chem. [high level] [COD]WKLY AVG <= 4265 kg/d all year
001Oxygen demand, chem. [high level] [COD]MO AVG report only all year
001Oxygen demand, chem. [high level] [COD]WKLY AVG report only all year
001Oxygen demand, chem. [high level] [COD]MO AVG report only all year
001Oxygen demand, chem. [high level] [COD]WKLY AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 3 mg/L all year
001Solids, total suspendedWKLY AVG <= 4.5 mg/L all year
001Solids, total suspendedMO AVG <= 569 kg/d all year
001Solids, total suspendedWKLY AVG <= 711 kg/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, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= .4 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= .6 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 75.8 kg/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 94.8 kg/d all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG <= .08 mg/L all year
001Phosphorus, total [as P]WKLY AVG < .12 mg/L all year
001Phosphorus, total [as P]MO AVG <= 15.2 kg/d all year
001Phosphorus, total [as P]WKLY AVG <= 19 kg/d all year
001Phosphate, ortho [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG <= 50 MGD all year
001Flow, in conduit or thru treatment plantWKLY AVG <= 62.5 MGD all year
001Chlorine, total residualMAXIMUM <= .15 mg/L all year
001E. coliMOAV GEO <= 126 #/100mL all year
001E. coliWE <= 410 #/100mL all year
001Coliform, fecal generalMOAV GEO <= 2 #/100L all year
001Coliform, fecal generalWE <= 23 #/100L all year
001Solids, sludge, total, dry weightMO TOTAL report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 2.5 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 3.8 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 474 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 592 kg/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
001Chem. oxygen demand [COD] % removalMINIMUM >= 85 % all year
001BOD, carbonaceous, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
001Noel Statre 7Day Chronic PimephalesMINIMUM report only all year
002Flow, in conduit or thru treatment plantMO AVG <= 20 MGD all year
002Flow, in conduit or thru treatment plantWKLY AVG <= 25 MGD all year
STRTemperature, water deg. fahrenheitMINIMUM report only all year
STRTemperature, water deg. fahrenheitMO AVG report only all year
STRTemperature, water deg. fahrenheitMAXIMUM report only all year
SUMFlow, in conduit or thru treatment plantMO AVG <= 60 MGD 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