St Johns County Utility Dept

NPDES permit FL0044245 · Major POTW · effective, expires 2030-02-05 · 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

2values over a limit
73required values missing, on 2 form(s)
0of 32 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (1), IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) (1).

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 (302)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only all year
001Temperature, water deg. centigradeMINIMUM report only all year
001Temperature, water deg. centigradeMAXIMUM report only all year
001Temperature, water deg. centigradeMINIMUM report only all year
001Temperature, water deg. centigradeMAXIMUM report only all year
001Specific conductanceMAXIMUM report only all year
001Specific conductanceMAXIMUM report only all year
001Plant capacity fact. percent of capacityMO AVG report only all year
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001Oxygen, dissolved [DO]MO AVG report only all year
001Oxygen, dissolved [DO]MINIMUM report only all year
001Oxygen, dissolved [DO]MINIMUM report only all year
001Oxygen, dissolved percent saturationAM >= 92 % all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHMAXIMUM report only all year
001pHMAXIMUM report only all year
001SalinityMAXIMUM report only all year
001SalinityMAXIMUM report only all year
001Solids, total suspendedMAXIMUM <= 10 mg/L all year
001Solids, total suspendedWKLY AVG <= 7.5 mg/L all year
001Solids, total suspendedWKLY AVG <= 7.5 mg/L all year
001Solids, total suspendedMAXIMUM <= 10 mg/L all year
001Solids, total suspendedMO AVG <= 6.25 mg/L all year
001Solids, total suspendedMO AVG <= 6.25 mg/L all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedANNL AVG <= 5 mg/L all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]AGM report only all year
001Nitrogen, total [as N]AGM report only all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]AGM report only all year
001Nitrogen, total [as N]AGM report only all year
001Nitrogen, total [as N]ANNL TOT <= 21841 lb/yr all year
001Nitrogen, total [as N]ANNL TOT <= 21900 lb/yr all year
001Nitrogen, total [as N]ANNL AVG report only all year
001Nitrogen, organic total [as N]MAXIMUM report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]AGM report only all year
001Phosphorus, total [as P]AGM report only all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]AGM report only all year
001Phosphorus, total [as P]AGM report only all year
001Phosphorus, total [as P]ANNL TOT <= 5655 lb/yr all year
001Phosphorus, total [as P]ANNL TOT <= 7300 lb/yr all year
001Phosphorus, total [as P]ANNL AVG report only all year
001Iron, total recoverableMAXIMUM report only all year
001Enterococci: group D, MF trans, M-E, EIAMO GEOMN <= 35 #/100mL all year
001Enterococci: group D, MF trans, M-E, EIAMO GEOMN <= 35 #/100mL all year
001Enterococci: group D, MF trans, M-E, EIA90TH % <= 130 #/100mL all year
001Enterococci: group D, MF trans, M-E, EIA90TH % <= 130 #/100mL all year
001Enterococci: group D, MF trans, M-E, EIA90TH % <= 130 #/100mL all year
001Enterococci: group D, MF trans, M-E, EIAMO GEOMN <= 35 #/100mL all year
001Chlorophyll AMAXIMUM report only all year
001Chlorophyll AMAXIMUM report only all year
001Chlorophyll AAGM report only all year
001Chlorophyll AAGM report only all year
001Chlorophyll AMAXIMUM report only all year
001Chlorophyll AMAXIMUM report only all year
001Chlorophyll AAGM report only all year
001Chlorophyll AAGM report only all year
001Ultraviolet light intensityMINIMUM report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantANNL AVG <= 2.4 MGD all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantQTR ROLL report only all year
001Flow, in conduit or thru treatment plantANNL AVG <= 1.2 MGD all year
001Flow, in conduit or thru treatment plantANNL AVG <= 2.4 MGD all year
001% of fecal coliform samples < detectableTM >= 75 % all year
001Ultraviolet light transmittanceMINIMUM >= 55 % all year
001Perfluorooctanoic acid (PFOA)MAXIMUM report only all year
001Perfluorobutanoic acid (PFBA)MAXIMUM report only all year
001Perfluorooctanesulfonamide (PFOSA)MAXIMUM report only all year
001Perfluoropentanoic acid (PFPeA)MAXIMUM report only all year
001Perfluorohexanoic acid (PFHxA)MAXIMUM report only all year
001Perfluoroheptanoic acid (PFHpA)MAXIMUM report only all year
001Perfluorononanoic acid (PFNA)MAXIMUM report only all year
001Perfluorodecanoic acid (PFDA)MAXIMUM report only all year
001Perfluoroundecanoic acid (PFUnA)MAXIMUM report only all year
001Perfluorododecanoic acid (PFDoA)MAXIMUM report only all year
001Perfluorotridecanoic acid (PFTrDA)MAXIMUM report only all year
001Perfluorotetradecanoic acid (PFTeDA)MAXIMUM report only all year
001N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)MAXIMUM report only all year
001N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)MAXIMUM report only all year
001N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)MAXIMUM report only all year
001N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)MAXIMUM report only all year
001Perfluorobutanesulfonic acid (PFBS)MAXIMUM report only all year
001Perfluorodecanesulfonic acid (PFDS)MAXIMUM report only all year
001Perfluoroheptanesulfonic acid (PFHpS)MAXIMUM report only all year
001Perfluorohexanesulfonic acid (PFHxS)MAXIMUM report only all year
001Perfluorooctanesulfonic acid (PFOS)MAXIMUM report only all year
0011H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)MAXIMUM report only all year
0011H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)MAXIMUM report only all year
0011H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)MAXIMUM report only all year
001Perfluoropentanesulfonic acid (PFPeS)MAXIMUM report only all year
001Perfluorononanesulfonic acid (PFNS)MAXIMUM report only all year
001Hexafluoropropylene oxide dimer acid (HFPO-DA)MAXIMUM report only all year
001Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)MAXIMUM report only all year
001Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)MAXIMUM report only all year
001Perfluorododecanesulfonic acid (PFDoS)MAXIMUM report only all year
0014,8-Dioxa-3H-perfluorononanoic acid (ADONA)MAXIMUM report only all year
001N-methyl perfluorooctanesulfonamide (NMeFOSA)MAXIMUM report only all year
001N-ethyl perfluorooctanesulfonamide (NEtFOSA)MAXIMUM report only all year
001Ultraviolet light dosageMINIMUM >= 100 mW-sec/cm2 all year
001Phosphorous, in total orthophosphateMAXIMUM report only all year
001Phosphorous, in total orthophosphateMAXIMUM report only all year
001Phosphorous, in total orthophosphateMAXIMUM report only all year
001Phosphorous, in total orthophosphateMAXIMUM report only all year
001Phosphorous, in total orthophosphateMAXIMUM report only all year
001Mercury, total recoverableMAXIMUM <= .025 ug/L all year
001Coliform, fecal generalMAXIMUM <= 25 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM 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]MAXIMUM report only all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
001BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 10 mg/L all year
001Duration of dischargeMO TOTAL report only all year
001Duration of dischargeMO TOTAL report only all year
0013-Perfluoropropyl propanoic acid (3:3 FTCA)MAXIMUM report only all year
001Perfluoro-3-methoxypropanoic acid (PFMPA)MAXIMUM report only all year
0019-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)MAXIMUM report only all year
00111-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)MAXIMUM report only all year
0013-Perfluoroheptyl propanoic acid (7:3 FTCA)MAXIMUM report only all year
001Perfluoro-4-methoxybutanoic acid (PFMBA)MAXIMUM report only all year
0012H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)MAXIMUM report only all year
001IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMINIMUM >= 100 % all year
001IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMINIMUM >= 100 % all year
001IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMINIMUM >= 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 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 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
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
001IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
001IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
001IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
002Tide stageMAXIMUM report only all year
002Tide stageMAXIMUM report only all year
002Tide stageMAXIMUM report only all year
002Specific conductanceMAXIMUM report only all year
002Specific conductanceMAXIMUM report only all year
002Specific conductanceMAXIMUM report only all year
002Specific conductanceMAXIMUM report only all year
002Oxygen, dissolved [DO]TM report only all year
002Oxygen, dissolved [DO]MO TOTAL report only all year
002Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
002Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
002Oxygen, dissolved [DO]MINIMUM report only all year
002Oxygen, dissolved [DO]MINIMUM report only all year
002Oxygen, dissolved [DO]MINIMUM report only all year
002Oxygen, dissolved percent saturationAM report only all year
002Oxygen, dissolved percent saturationAM >= 92 % all year
002pHMAXIMUM report only all year
002pHMAXIMUM report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 8.5 SU all year
002pHMAXIMUM report only all year
002SalinityMAXIMUM report only all year
002SalinityMAXIMUM report only all year
002SalinityMAXIMUM report only all year
002Solids, total suspendedMAXIMUM <= 10 mg/L all year
002Solids, total suspendedWKLY AVG <= 7.5 mg/L all year
002Solids, total suspendedWKLY AVG <= 7.5 mg/L all year
002Solids, total suspendedMAXIMUM <= 10 mg/L all year
002Solids, total suspendedMO AVG <= 6.25 mg/L all year
002Solids, total suspendedMO AVG <= 6.25 mg/L all year
002Solids, total suspendedANNL AVG <= 5 mg/L all year
002Solids, total suspendedANNL AVG <= 5 mg/L all year
002Nitrogen, total [as N]MAXIMUM report only all year
002Nitrogen, total [as N]AGM <= .65 mg/L all year
002Nitrogen, total [as N]MAXIMUM report only all year
002Nitrogen, total [as N]AGM report only all year
002Nitrogen, total [as N]MAXIMUM <= 6 mg/L all year
002Nitrogen, total [as N]WKLY AVG <= 4.5 mg/L all year
002Nitrogen, total [as N]WKLY AVG <= 4.5 mg/L all year
002Nitrogen, total [as N]MAXIMUM <= 6 mg/L all year
002Nitrogen, total [as N]MO AVG <= 3.75 mg/L all year
002Nitrogen, total [as N]MO AVG <= 3 mg/L all year
002Nitrogen, total [as N]ANNL TOT <= 4580 lb/yr all year
002Nitrogen, total [as N]ANNL TOT <= 9007 lb/yr all year
002Nitrogen, total [as N]MO TOTAL report only all year
002Nitrogen, total [as N]MAXIMUM report only all year
002Nitrogen, total [as N]AGM <= .65 mg/L all year
002Nitrogen, total [as N]ANNL AVG <= 3 mg/L all year
002Nitrogen, total [as N]ANNL AVG <= 3 mg/L all year
002Nitrogen, ammonia total [as N]MAXIMUM report only all year
002Nitrogen, ammonia total [as N]MAXIMUM report only all year
002Nitrogen, ammonia total [as N]MAXIMUM report only all year
002Nitrogen, ammonia total [as N]MAXIMUM report only all year
002Nitrogen, ammonia total [as N]MAXIMUM report only all year
002Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
002Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
002Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
002Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
002Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
002Nitrite + Nitrate total [as N]MAXIMUM report only all year
002Nitrite + Nitrate total [as N]MAXIMUM report only all year
002Nitrite + Nitrate total [as N]MAXIMUM report only all year
002Nitrite + Nitrate total [as N]MAXIMUM report only all year
002Phosphorus, total [as P]MAXIMUM report only all year
002Phosphorus, total [as P]AGM <= .105 mg/L all year
002Phosphorus, total [as P]MAXIMUM report only all year
002Phosphorus, total [as P]AGM report only all year
002Phosphorus, total [as P]MAXIMUM <= 2 mg/L all year
002Phosphorus, total [as P]WKLY AVG report only all year
002Phosphorus, total [as P]WKLY AVG <= 1.5 mg/L all year
002Phosphorus, total [as P]MAXIMUM report only all year
002Phosphorus, total [as P]MO AVG <= 1.25 mg/L all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]ANNL TOT <= 1826 lb/yr all year
002Phosphorus, total [as P]ANNL TOT <= 3003 lb/yr all year
002Phosphorus, total [as P]MO TOTAL report only all year
002Phosphorus, total [as P]MAXIMUM report only all year
002Phosphorus, total [as P]AGM <= .105 mg/L all year
002Phosphorus, total [as P]ANNL AVG <= 1 mg/L all year
002Phosphorus, total [as P]ANNL AVG report only all year
002Iron, total recoverableMAXIMUM report only all year
002Copper, total recoverableMAXIMUM report only all year
002Copper, total recoverableMAXIMUM <= 3.7 ug/L all year
002Enterococci: group D, MF trans, M-E, EIAMO GEOMN <= 35 #/100mL all year
002Enterococci: group D, MF trans, M-E, EIA90TH % <= 130 #/100mL all year
002Enterococci: group D, MF trans, M-E, EIA90TH % <= 130 #/100mL all year
002Enterococci: group D, MF trans, M-E, EIAMO GEOMN <= 35 #/100mL all year
002Chlorophyll AMAXIMUM report only all year
002Chlorophyll AAGM <= 6.6 ug/L all year
002Chlorophyll AMAXIMUM report only all year
002Chlorophyll AAGM report only all year
002Chlorophyll AMAXIMUM report only all year
002Chlorophyll AAGM <= 6.6 ug/L all year
002Ultraviolet light intensityMINIMUM report only all year
002Ultraviolet light intensityMAXIMUM report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantANNL AVG <= 1.2 MGD all year
002% of fecal coliform samples < detectableTM >= 75 % all year
002% of fecal coliform samples < detectableTM >= 75 % all year
002Ultraviolet light transmittanceMINIMUM >= 55 % all year
002Ultraviolet light transmittanceMAXIMUM <= 55 % all year
002Ultraviolet light dosageMINIMUM >= 100 mW-sec/cm2 all year
002Phosphorous, in total orthophosphateMAXIMUM report only all year
002Phosphorous, in total orthophosphateMAXIMUM report only all year
002Phosphorous, in total orthophosphateMAXIMUM report only all year
002Phosphorous, in total orthophosphateMAXIMUM report only all year
002Mercury, total recoverableMINIMUM report only all year
002Mercury, total recoverableMAXIMUM <= .025 ug/L all year
002Coliform, fecal generalMAXIMUM <= 25 #/100mL all year
002BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
002BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
002BOD, carbonaceous [5 day, 20 C]MAXIMUM <= 20 mg/L all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
002BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MAXIMUM <= 20 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
002BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
002BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 10 mg/L all year
002Duration of dischargeMO TOTAL report only all year
002IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMINIMUM >= 100 % all year
002IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMINIMUM >= 100 % all year
002IC25 Lethal Static Renewal 7 Day Chronic Menidia beryllinaMINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic Menidia menidiaMINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic Menidia menidiaMINIMUM >= 100 % all year
002IC25 Static Renewal 7 Day Chronic Menidia menidiaMINIMUM >= 100 % all year

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