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St Johns County Utility Dept

Sewage treatment plant, Saint Augustine, Florida. NPDES permit FL0043109, in force until Jan 26, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 90 days after each period: outfall 001 form 1 monthly (45 values), outfall 01E form 1 monthly (20 values), outfall 01E form Q quarterly (2 values), outfall 1NW form 1 monthly (20 values), outfall 1NW form Q quarterly (2 values), outfall 1SW form 1 monthly (20 values), and 4 more forms
Renewal application due
Jul 30, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 60 reports late

Limits in force (153)

ParameterStatisticLimitMonthsOutfall
Plant capacity fact. percent of capacitymonthly averagereport only (%)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum≤ 60 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedannual average≤ 20 mg/Lall year001
Nitrogen, total [as N]maximumreport only (mg/L)all year001
Nitrogen, total [as N]weekly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly totalreport only (mg/L)all year001
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year001
Nitrogen, total [as N]annual total≤ 18569 lb/yrall year001
Nitrogen, total [as N]annual average≤ 25 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 0 mg/Lall year001
Nitrogen, ammonia total [as N]maximum≤ 0 mg/Lall year001
Phosphorus, total [as P]maximum≤ 6 mg/Lall year001
Phosphorus, total [as P]weekly average≤ 4.5 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 3.75 mg/Lall year001
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year001
Phosphorus, total [as P]annual total≤ 5480 lb/yrall year001
Phosphorus, total [as P]annual average≤ 3 mg/Lall year001
Sodium, total recoverablemaximumreport only (mg/L)all year001
Sulfate, total [as SO4]maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantannual average≤ .98 MGDall year001
Flow, in conduit or thru treatment plantquarterly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantannual average≤ .5 MGDall year001
Chlorine, total residualminimum≥ .5 mg/Lall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. coli90th percentile≤ 410 #/100mLall year001
Solids, total dissolvedmaximumreport only (mg/L)all year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalmaximum≤ 800 #/100mLall year001
Coliform, fecal generalannual average≤ 200 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]maximum≤ 60 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly totalreport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]annual average≤ 20 mg/Lall year001
Temperature, water deg. centigrademaximumreport only (deg C)all year01E
Color [PT-CO units]maximumreport only (col unit (pc))all year01E
Specific conductancemaximumreport only (umho/cm)all year01E
Oxygen, dissolved [DO]minimumreport only (mg/L)all year01E
pHmaximumreport only (SU)all year01E
Solids, total suspendedmaximumreport only (mg/L)all year01E
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year01E
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L)all year01E
Nitrite + Nitrate total [as N]maximumreport only (mg/L)all year01E
Phosphorus, total [as P]maximumreport only (mg/L)all year01E
Sulfate, total [as SO4]maximumreport only (mg/L)all year01E
Iron, total recoverablemaximumreport only (ug/L)all year01E
Nickel, total recoverablemaximumreport only (ug/L)all year01E
Silver total recoverablemaximumreport only (ug/L)all year01E
Zinc, total recoverablemaximumreport only (ug/L)all year01E
Cadmium, total recoverablemaximumreport only (ug/L)all year01E
Lead, total recoverablemaximumreport only (ug/L)all year01E
Copper, total recoverablemaximumreport only (ug/L)all year01E
Chlorophyll Amaximumreport only (mg/L)all year01E
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year01E
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year01E
Woody vegetation, presencemaximumreport only (N=0;Y=1)all year01E
Woody vegetation, presencemaximumreport only (N=0;Y=1)all year01E
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year01E
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year01E
Phosphorous, in total orthophosphatemaximumreport only (mg/L)all year01E
Mercury, total recoverablemaximumreport only (ug/L)all year01E
Coliform, fecal generalmaximumreport only (#/100mL)all year01E
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L)all year01E
Water level at sample collection timemaximumreport only (ft)all year01E
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year01E
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year01E
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year01E
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year01E
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year01E
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year01E
Temperature, water deg. centigrademaximumreport only (deg C)all year1NW
Color [PT-CO units]maximumreport only (col unit (pc))all year1NW
Specific conductancemaximumreport only (umho/cm)all year1NW
Oxygen, dissolved [DO]minimumreport only (mg/L)all year1NW
pHmaximumreport only (SU)all year1NW
Solids, total suspendedmaximumreport only (mg/L)all year1NW
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year1NW
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L)all year1NW
Nitrite + Nitrate total [as N]maximumreport only (mg/L)all year1NW
Phosphorus, total [as P]maximumreport only (mg/L)all year1NW
Sulfate, total [as SO4]maximumreport only (mg/L)all year1NW
Iron, total recoverablemaximumreport only (ug/L)all year1NW
Nickel, total recoverablemaximumreport only (ug/L)all year1NW
Silver total recoverablemaximumreport only (ug/L)all year1NW
Zinc, total recoverablemaximumreport only (ug/L)all year1NW
Cadmium, total recoverablemaximumreport only (ug/L)all year1NW
Lead, total recoverablemaximumreport only (ug/L)all year1NW
Copper, total recoverablemaximumreport only (ug/L)all year1NW
Chlorophyll Amaximumreport only (mg/L)all year1NW
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year1NW
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year1NW
Woody vegetation, presencemaximumreport only (N=0;Y=1)all year1NW
Woody vegetation, presencemaximumreport only (N=0;Y=1)all year1NW
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year1NW
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year1NW
Phosphorous, in total orthophosphatemaximumreport only (mg/L)all year1NW
Mercury, total recoverablemaximumreport only (ug/L)all year1NW
Coliform, fecal generalmaximumreport only (#/100mL)all year1NW
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L)all year1NW
Water level at sample collection timemaximumreport only (ft)all year1NW
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year1NW
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year1NW
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year1NW
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year1NW
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year1NW
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year1NW
Temperature, water deg. centigrademaximumreport only (deg C)all year1SW
Color [PT-CO units]maximumreport only (col unit (pc))all year1SW
Specific conductancemaximumreport only (umho/cm)all year1SW
Oxygen, dissolved [DO]minimumreport only (mg/L)all year1SW
pHmaximumreport only (SU)all year1SW
Solids, total suspendedmaximumreport only (mg/L)all year1SW
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year1SW
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L)all year1SW
Nitrite + Nitrate total [as N]maximumreport only (mg/L)all year1SW
Phosphorus, total [as P]maximumreport only (mg/L)all year1SW
Sulfate, total [as SO4]maximumreport only (mg/L)all year1SW
Iron, total recoverablemaximumreport only (ug/L)all year1SW
Nickel, total recoverablemaximumreport only (ug/L)all year1SW
Silver total recoverablemaximumreport only (ug/L)all year1SW
Zinc, total recoverablemaximumreport only (ug/L)all year1SW
Cadmium, total recoverablemaximumreport only (ug/L)all year1SW
Lead, total recoverablemaximumreport only (ug/L)all year1SW
Copper, total recoverablemaximumreport only (ug/L)all year1SW
Chlorophyll Amaximumreport only (mg/L)all year1SW
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year1SW
Herbaceous vegetation, presencemaximumreport only (N=0;Y=1)all year1SW
Woody vegetation, presencemaximumreport only (N=0;Y=1)all year1SW
Woody vegetation, presencemaximumreport only (N=0;Y=1)all year1SW
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year1SW
Threatened & endangered species, presencemaximumreport only (N=0;Y=1)all year1SW
Phosphorous, in total orthophosphatemaximumreport only (mg/L)all year1SW
Mercury, total recoverablemaximumreport only (ug/L)all year1SW
Coliform, fecal generalmaximumreport only (#/100mL)all year1SW
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L)all year1SW
Water level at sample collection timemaximumreport only (ft)all year1SW
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year1SW
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year1SW
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year1SW
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year1SW
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year1SW
LC50 Static Renewal 96Hr Acute Cyprinella leedsiminimum≥ 100 %all year1SW

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/FL0043109 · MCP: https://passage-data.com/mcp