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St Johns County Utility Dept

Sewage treatment plant, Hastings, Florida. NPDES permit FL0042315, in force until Aug 27, 2031. Last 12 months: no values over a limit, 1 required value missing. Source: EPA ECHO, Oct 22, 2026.

Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Limits in force (106)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademaximumreport only (deg C)all year
Temperature, water deg. centigrademaximumreport only (deg C)all year
Tide stageminimumreport only (ft)all year
Specific conductancemaximumreport only (umho/cm)all year
Plant capacity fact. percent of capacitymonthly averagereport only (%)all year
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
pHmaximumreport only (SU)all year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmaximum≤ 60 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmaximumreport only (mg/L)all year
Solids, total suspendedmaximumreport only (mg/L)all year
Solids, total suspendedannual average≤ 20 mg/Lall year
Nitrogen, total [as N]weekly average≤ 4.5 mg/Lall year
Nitrogen, total [as N]maximum≤ 6 mg/Lall year
Nitrogen, total [as N]monthly average≤ 3.75 mg/Lall year
Nitrogen, total [as N]annual total≤ 1640.4 lb/yrall year
Nitrogen, total [as N]maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year
Nitrogen, total [as N]annual average≤ 3 mg/Lall year
Nitrogen, organic total [as N]maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 0 mg/Lall year
Nitrogen, ammonia total [as N]maximum≤ 0 mg/Lall year
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly totalreport only (mg/L)all year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Phosphorus, total [as P]annual total≤ 527.4 lb/yrall year
Phosphorus, total [as P]maximumreport only (mg/L)all year
Phosphorus, total [as P]maximumreport only (lb/mo)all year
Phosphorus, total [as P]annual averagereport only (mg/L)all year
Sulfide, total [as S]maximumreport only (mg/L)all year
Sulfate, total [as SO4]maximumreport only (mg/L)all year
Chlorophyll Amaximumreport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantrolling quarterlyreport only (MGD)all year
Flow, in conduit or thru treatment plantannual average≤ .12 MGDall year
Chlorine, total residualmaximum≤ .01 mg/Lall year
Chlorine, total residualminimum≥ .5 mg/Lall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coli90th percentile≤ 410 #/100mLall year
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year
Perfluorooctanoic acid (PFOA)maximumreport only (ng/L)all year
Perfluorobutanoic acid (PFBA)maximumreport only (ng/L)all year
Perfluorooctanesulfonamide (PFOSA)maximumreport only (ng/L)all year
Perfluoropentanoic acid (PFPeA)maximumreport only (ng/L)all year
Perfluorohexanoic acid (PFHxA)maximumreport only (ng/L)all year
Perfluoroheptanoic acid (PFHpA)maximumreport only (ng/L)all year
Perfluorononanoic acid (PFNA)maximumreport only (ng/L)all year
Perfluorodecanoic acid (PFDA)maximumreport only (ng/L)all year
Perfluoroundecanoic acid (PFUnA)maximumreport only (ng/L)all year
Perfluorododecanoic acid (PFDoA)maximumreport only (ng/L)all year
Perfluorotridecanoic acid (PFTrDA)maximumreport only (ng/L)all year
Perfluorotetradecanoic acid (PFTeDA)maximumreport only (ng/L)all year
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)maximumreport only (ng/L)all year
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)maximumreport only (ng/L)all year
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)maximumreport only (ng/L)all year
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)maximumreport only (ng/L)all year
Perfluorobutanesulfonic acid (PFBS)maximumreport only (ng/L)all year
Perfluorodecanesulfonic acid (PFDS)maximumreport only (ng/L)all year
Perfluoroheptanesulfonic acid (PFHpS)maximumreport only (ng/L)all year
Perfluorohexanesulfonic acid (PFHxS)maximumreport only (ng/L)all year
Perfluorooctanesulfonic acid (PFOS)maximumreport only (ng/L)all year
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)maximumreport only (ng/L)all year
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)maximumreport only (ng/L)all year
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)maximumreport only (ng/L)all year
Perfluoropentanesulfonic acid (PFPeS)maximumreport only (ng/L)all year
Perfluorononanesulfonic acid (PFNS)maximumreport only (ng/L)all year
Hexafluoropropylene oxide dimer acid (HFPO-DA)maximumreport only (ng/L)all year
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)maximumreport only (ng/L)all year
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)maximumreport only (ng/L)all year
Perfluorododecanesulfonic acid (PFDoS)maximumreport only (ng/L)all year
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)maximumreport only (ng/L)all year
N-methyl perfluorooctanesulfonamide (NMeFOSA)maximumreport only (ng/L)all year
N-ethyl perfluorooctanesulfonamide (NEtFOSA)maximumreport only (ng/L)all year
Phosphorous, in total orthophosphatemaximumreport only (mg/L)all year
Mercury, total recoverabledaily maximum≤ .025 ug/Lall year
Coliform, fecal general90th percentile≤ 400 #/100mLall year
Coliform, fecal generalmaximum≤ 800 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalmaximumreport only (#/100mL)all year
Coliform, fecal generalannual average≤ 200 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 7.5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximum≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]annual average≤ 5 mg/Lall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
3-Perfluoropropyl propanoic acid (3:3 FTCA)maximumreport only (ng/L)all year
Perfluoro-3-methoxypropanoic acid (PFMPA)maximumreport only (ng/L)all year
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)maximumreport only (ng/L)all year
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)maximumreport only (ng/L)all year
3-Perfluoroheptyl propanoic acid (7:3 FTCA)maximumreport only (ng/L)all year
Perfluoro-4-methoxybutanoic acid (PFMBA)maximumreport only (ng/L)all year
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)maximumreport only (ng/L)all year

New limits from Aug 1, 2029

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Solids, total suspended, annual average5 mg/Ltighter1.4 mg/L (11 values)0.28×
Solids, total suspended, maximum10 mg/Ltighter2.1 mg/L (11 values)0.21×
Solids, total suspended, monthly average6.25 mg/Ltighter1.53 mg/L (11 values)0.245×
Solids, total suspended, weekly average8.5 mg/Ltighter——

How strict are these limits?

Cited limits by parameter: Florida's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/FL0042315 · MCP: https://passage-data.com/mcp