St Johns County Utility Dept

NPDES permit FL0117471 · Minor POTW · effective, expires 2027-07-26 · 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 12 forms filed late

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

Reporting

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

Limits in force (48)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only all year
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedANNL TOT <= 1142.5 lb/yr all year
001Solids, total suspendedMO TOTAL report only all year
001Solids, total suspendedANNL AVG report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]ANNL TOT <= 686 lb/yr all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]ANNL AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MAXIMUM report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MAXIMUM report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 0 mg/L all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 0 mg/L all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]ANNL TOT <= 226 lb/yr all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]ANNL AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantANNL AVG <= .075 MGD all year
001Chlorine, total residualMAXIMUM <= .01 mg/L all year
001Chlorine, total residualMINIMUM >= 1 mg/L all year
001% of fecal coliform samples < detectableTM >= 75 % all year
001E. coliMO GEOMN <= 126 #/100mL all year
001E. coli90TH % <= 410 #/100mL all year
001Coliform, fecal generalMAXIMUM <= 25 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM 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]MAXIMUM report only all year
001BOD, carbonaceous [5 day, 20 C]ANNL TOT <= 1142.5 lb/yr all year
001BOD, carbonaceous [5 day, 20 C]MO TOTAL report only all year
001BOD, carbonaceous [5 day, 20 C]ANNL 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
001Flow, totalANNL TOT <= 27.4 Mgal/mo all year
001LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaMINIMUM >= 100 % all year
001LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaMINIMUM >= 100 % all year
001LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaMINIMUM >= 100 % all year
001LC50 Static Renewal 96Hr Acute Cyprinella leedsiMINIMUM >= 100 % all year
001LC50 Static Renewal 96Hr Acute Cyprinella leedsiMINIMUM >= 100 % all year
001LC50 Static Renewal 96Hr Acute Cyprinella leedsiMINIMUM >= 100 % 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