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St Johns County Utility Dept

Water Supply, Hastings, Florida. NPDES permit FL0169226, in force until Feb 22, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 90 days after each period: form 1 monthly (5 values), form Q quarterly (19 values), form A yearly
Renewal application due
Aug 26, 2027 · 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 17 reports late

Limits in force (34)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Specific conductancedaily maximum≤ 5089 umho/cmall year
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 8.5 SUall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedannual average≤ 5 mg/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]annual average≤ 3 mg/Lall 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]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 0 mg/Lall year
Nitrogen, ammonia total [as N]maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]maximum≤ 0 mg/Lall year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]annual average≤ 1 mg/Lall year
Silver total recoverabledaily maximum≤ .286 ug/Lall year
Radium 226 + radium 228, totaldaily maximum≤ 12.2 pCi/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximum≤ .087 MGDall year
Alpha, gross particle activitydaily maximum≤ 43.7 pCi/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]annual average≤ 5 mg/Lall year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 20 %all year
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 20 %all year

New limits from Dec 1, 2026

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Specific conductance, daily maximum1275 umho/cmtighter4782 umho/cm (4 values)3.75×

How strict are these limits?

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

Same industry: the 26 Water Supply permits in Florida.

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/FL0169226 · MCP: https://passage-data.com/mcp