Clean Water Act discharge permit · NPDES FL0038407
CALLAHAN WWTF, Callahan, FL: NPDES FL0038407 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 15Pollutants with an effluent exceedance
CALLAHAN WWTF, held by Callahan City of, holds NPDES permit FL0038407, which discharges to Alligator Cr Class Iii Fresh Wbid 2153. EPA’s file records it issued January 17, 2018 and expiring February 21, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CALLAHAN WWTF |
|---|---|
| Permittee as filed | Callahan City of |
| NPDES ID | FL0038407 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 17, 2018 |
| Expiration date | February 21, 2023 |
| Issuing agency | Florida Department of Environmental Protection |
| Address | Callahan, FL 32011 |
| Receiving water | Alligator Cr Class III Fresh WBID 2153 |
| Subwatershed | Upper Alligator Creek-Nassau River (HUC 030702050102) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 20Under a numeric limit
- 26With a violation of any kind
- 15With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, total [as N] | 12 | 69 | 65 | January 31, 2026 | 697% over the limit |
| Nitrogen, ammonia total [as N] | 9 | 51 | 47 | February 29, 2024 | 2,147,483,650% over the limit |
| Solids, total suspended | 8 | 20 | 13 | November 30, 2021 | 166% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 19 | 12 | June 30, 2020 | 170% over the limit |
| Nitrogen, ammonia, tot unionized [as N] | 0 | 9 | 9 | December 31, 2016 | 4,050% over the limit |
| Phosphorus, total [as P] | 11 | 12 | 8 | November 30, 2016 | 344% over the limit |
| Coliform, fecal general | 3 | 11 | 5 | March 31, 2026 | 463% over the limit |
| Chlorine, total residual | 2 | 5 | 3 | August 31, 2024 | 200% over the limit |
| LC50 Static Renewal 96Hr Acute Ceriodaphnia dubia | 0 | 18 | 2 | June 30, 2014 | 93% over the limit |
| Flow, in conduit or thru treatment plant | 3 | 5 | 2 | July 31, 2015 | 714% over the limit |
| E. coli | 5 | 2 | 2 | August 31, 2024 | 485% over the limit |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 2 | 2 | June 30, 2024 | 99,999% over the limit |
| IC25 Static Renewal 7 Day Chronic Chrpimephales | 3 | 2 | 2 | February 28, 2021 | 66% over the limit |
| pH | 5 | 6 | 1 | October 31, 2009 | |
| Oxygen, dissolved [DO] | 4 | 5 | 1 | August 31, 2007 | 15% over the limit |
| LC50 Static Renewal 96Hr Acute Pimephales promelas | 0 | 9 | 0 | ||
| LC50 Static Renewal 96Hr Acute Cyprinella leedsi | 0 | 8 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 5 | 4 | 0 | ||
| Phosphorous, in total orthophosphate | 5 | 4 | 0 | ||
| Temperature, water deg. centigrade | 4 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 4 | 0 | ||
| Nitrogen, organic total [as N] | 2 | 1 | 0 | ||
| Plant capacity fact. percent of capacity | 1 | 1 | 0 | ||
| Ammonia, unionized | 0 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 1 | 0 | ||
| IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES FL0038407.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID FL0038407 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.