St Johns County Utility Dept

NPDES permit FL0042315 · Minor POTW · administratively continued, expires 2025-11-30 · 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.

This permit expired on 2025-11-30 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 15 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 FL permits in EPA's filings — check your permit).

Limits in force (52)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only all year
001Plant capacity fact. percent of capacityMO AVG 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 suspendedMAXIMUM <= 60 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedANNL AVG <= 20 mg/L all year
001Nitrogen, total [as N]MAXIMUM <= 9 mg/L all year
001Nitrogen, total [as N]WKLY AVG <= 6.75 mg/L all year
001Nitrogen, total [as N]MO AVG <= 5.63 mg/L all year
001Nitrogen, total [as N]ANNL TOT <= 1640.4 lb/yr all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]ANNL AVG <= 4.5 mg/L all year
001Nitrogen, organic 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 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
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]ANNL TOT <= 527.4 lb/yr all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Flow, in conduit or thru treatment plantQTR ROLL report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantANNL AVG <= .12 MGD all year
001Chlorine, total residualMAXIMUM <= .01 mg/L all year
001Chlorine, total residualMINIMUM >= .6 mg/L all year
001E. coliMO GEOMN <= 126 #/100mL all year
001E. coli90TH % <= 410 #/100mL all year
001Phosphorous, in total orthophosphateMAXIMUM report only all year
001Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
001Coliform, fecal generalMAXIMUM <= 800 #/100mL all year
001Coliform, fecal generalANNL AVG <= 200 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 7.5 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 6.25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
001BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 5 mg/L 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
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