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Clean Water Act discharge permit · NPDES FL0040495

MACCLENNY WWTF, Macclenny, FL: NPDES FL0040495 discharge permit, effluent exceedances, inspections, penalties

MACCLENNY WWTF, held by City of Macclenny, holds NPDES permit FL0040495, which discharges to Turkey Cr 2318 Class Iii Fresh Trib Of St Marys R. EPA’s file records it issued November 13, 2018 and expiring January 14, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedMACCLENNY WWTF
Permittee as filedCity of Macclenny
NPDES IDFL0040495
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedNovember 13, 2018
Expiration dateJanuary 14, 2024
Issuing agencyFlorida Department of Environmental Protection
AddressMacclenny, FL 32063
Receiving waterTurkey Cr 2318 Class III Fresh trib of St Marys R
SubwatershedTurkey Creek-South Prong of St. Marys River (HUC 030702040403)
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Nitrogen, Kjeldahl, total [as N]189130September 30, 2023686% over the limit
BOD, carbonaceous [5 day, 20 C]139522December 31, 2023500% over the limit
Nitrogen, ammonia total [as N]1010621May 31, 201380% over the limit
Mercury, total recoverable13220September 30, 20221,300% over the limit
Nitrogen, organic total [as N]12820June 30, 2013800% over the limit
Solids, total suspended5709June 30, 2019100% over the limit
Silver total recoverable1208April 30, 20181,329% over the limit
Cyanide, total [as CN]1164August 31, 20251,806% over the limit
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia3563November 30, 202590% over the limit
Copper, total recoverable3413August 31, 20212,147,483,650% over the limit
Specific conductance4153June 30, 20262,147,483,650% over the limit
IC25 Static Renewal 7 Day Chronic Chrpimephales3541December 31, 201769% over the limit
IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas011November 30, 202547% over the limit
LC50 Static Renewal 96Hr Acute Ceriodaphnia dubia011April 30, 200499,999% over the limit
Oxygen, dissolved [DO]101080
Nitrogen, total [as N]14970
Phosphorus, total [as P]14970
pH6360
Flow, in conduit or thru treatment plant3360
Coliform, fecal general3360
Temperature, water deg. centigrade5240
Chlorine, total residual2240
E. coli2240
Nitrite + Nitrate total [as N]5190
Hardness, total [as CaCO3]1130
Water level at sample collection time1130
Plant capacity fact. percent of capacity1120
Ammonia, unionized090
Phosphorous, in total orthophosphate160
Stream stage440
Phosphate, ortho [as PO4]010
BOD, 5-day, percent removal010
Solids, suspended percent removal010

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

DateWhat EPA recordedAgency
September 12, 2022Effluent Violations - Narrative Effluent ViolationST6
July 23, 2021WW SSO - Discharge to WatersST6
July 8, 2021WW SSO - Discharge to WatersST6
February 19, 2021WW SSO - Overflow to Dry Land or Building BackupST6
February 19, 2021WW SSO - Discharge to WatersST6
January 8, 2021WW SSO - Discharge to WatersST6
January 8, 2021WW SSO - Overflow to Dry Land or Building BackupST6
February 9, 2020WW SSO - Overflow to Dry Land or Building BackupST6
February 9, 2020WW SSO - Discharge to WatersST6
June 3, 2019WW SSO - Overflow to Dry Land or Building BackupST6

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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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The MACCLENNY WWTF, held by City of Macclenny under NPDES permit FL0040495, is a Major Discharger publicly owned treatment works in Macclenny, FL, with its permit status listed as administratively continued. The page lists 27 pollutants under a numeric limit and 14 pollutants with an effluent exceedance, with the permit's issue and expiration dates recorded from EPA's file.