St Johns County Utility Dept

NPDES permit FL0169226 · Minor NON-POTW · effective, expires 2028-02-22 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 17 forms filed late

Last period with anything received: 2026-08-31.

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 (34)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Specific conductanceDAILY MX <= 5089 umho/cm all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 8.5 SU all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedANNL AVG <= 5 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]ANNL AVG <= 3 mg/L 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 report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 0 mg/L all year
001Nitrogen, ammonia total [as N]MAXIMUM report only all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 0 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]ANNL AVG <= 1 mg/L all year
001Silver total recoverableDAILY MX <= .286 ug/L all year
001Radium 226 + radium 228, totalDAILY MX <= 12.2 pCi/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX <= .087 MGD all year
001Alpha, gross particle activityDAILY MX <= 43.7 pCi/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 5 mg/L all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 20 % all year
001IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 20 % 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