Callahan City of

NPDES permit FL0038407 · Minor POTW · effective, expires 2028-05-25 · 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

5values over a limit
0required values missing, on 0 form(s)
0of 17 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, total [as N] (4), Coliform, fecal general (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 (103)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only all year
001Temperature, water deg. centigradeMAXIMUM report only all year
001Temperature, water deg. centigradeMAXIMUM report only all year
001Temperature, water deg. centigradeMAXIMUM report only all year
001Plant capacity fact. percent of capacityMO AVG report only all year
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001Oxygen, dissolved [DO]MAXIMUM report only all year
001Oxygen, dissolved [DO]MAXIMUM report only all year
001Oxygen, dissolved [DO]MAXIMUM report only all year
001BOD, 5-day, 20 deg. CMAXIMUM report only all year
001BOD, 5-day, 20 deg. CMAXIMUM report only all year
001BOD, 5-day, 20 deg. CMAXIMUM report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHMAXIMUM report only all year
001pHMAXIMUM report only all year
001pHMAXIMUM report only all year
001Solids, total suspendedMAXIMUM <= 10 mg/L all year
001Solids, total suspendedWKLY AVG <= 7.5 mg/L all year
001Solids, total suspendedMO AVG <= 6.25 mg/L all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedMAXIMUM report only all year
001Solids, total suspendedANNL AVG <= 5 mg/L all year
001Nitrogen, total [as N]MAXIMUM <= 6 mg/L all year
001Nitrogen, total [as N]WKLY AVG <= 4.5 mg/L all year
001Nitrogen, total [as N]MO AVG <= 3.75 mg/L all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, total [as N]AGM 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]MAXIMUM report only all year
001Nitrogen, total [as N]AGM report only all year
001Nitrogen, total [as N]ANNL TOT <= 4557 lb/yr all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]ANNL AVG <= 3 mg/L all year
001Nitrogen, organic total [as N]MAXIMUM report only all year
001Nitrogen, organic total [as N]ANNL AVG 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]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]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]MAXIMUM 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 <= 0 mg/L all year
001Nitrogen, ammonia total [as N]MAXIMUM <= 0 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 0 mg/L 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]ANNL AVG report only all year
001Phosphorus, total [as P]MAXIMUM <= 2 mg/L all year
001Phosphorus, total [as P]WKLY AVG <= 1.5 mg/L all year
001Phosphorus, total [as P]MO AVG <= 1.25 mg/L all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Phosphorus, total [as P]AGM 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]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]ANNL TOT <= 1519 lb/yr all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]ANNL AVG <= 1 mg/L all year
001Flow, in conduit or thru treatment plantQRTR AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only 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 <= .499 MGD all year
001Chlorine, total residualMAXIMUM <= .01 mg/L all year
001Chlorine, total residualMINIMUM >= .5 mg/L all year
001E. coliMO GEOMN <= 126 #/100mL all year
001E. coli90TH % <= 410 #/100mL all year
001E. coliMAXIMUM report only all year
001E. coliMAXIMUM report only all year
001E. coliMAXIMUM 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
001Phosphorous, in total orthophosphateANNL AVG report only all year
001Coliform, fecal generalMO GEOMN <= 200 #/100mL all year
001Coliform, fecal generalMAXIMUM <= 800 #/100mL all year
001Coliform, fecal generalANNL AVG <= 200 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 7.5 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 6.25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MAXIMUM report only all year
001BOD, carbonaceous [5 day, 20 C]ANNL AVG <= 5 mg/L all year
001IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM >= 100 % all year
001IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM >= 100 % all year
001IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM >= 100 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % 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