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Clean Water Act discharge permit · NPDES LAL045730

DENHAM SPRINGS, CITY OF, Denham Springs, LA: NPDES LAL045730 discharge permit, effluent exceedances, inspections, penalties

DENHAM SPRINGS, CITY OF holds NPDES permit LAL045730, which discharges to Amite River/Lake Pontchartrain. EPA’s file records it issued January 1, 2021 and expiring December 31, 2025. 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 filedDENHAM SPRINGS, CITY OF
Permittee as filedDENHAM SPRINGS, CITY OF
NPDES IDLAL045730
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeAssociated permit record
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
ProgramBiosolids
IssuedJanuary 1, 2021
Expiration dateDecember 31, 2025
AddressDenham Springs, LA
Receiving waterAMITE RIVER/LAKE PONTCHARTRAIN
Receiving water impaired303(D) Listed
SubwatershedGrays Creek-Amite River (HUC 080702020903)
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
Polychlorinated biphenyls [PCBs]041December 31, 2014478% over the limit
Arsenic, dry weight0330
Nickel, sludge, total, dry weight [as Ni]0330
Zinc, sludge, total, dry weight [as Zn]0280
Selenium, dry weight0270
Copper, dry weight0270
Cadmium, dry weight0270
Molybdenum, sludge, total, dry weight [as Mo]0270
Lead, sludge, total, dry weight [as Pb]0270
Mercury, sludge, total, dry weight [as Hg]0270
Level of pathogen requirements achieved0120
Description of pathogen option used0120
Vector attraction reduction alternative used0120
Pollutant table from 503.13090
Chromium, sludge, total, dry weight [as Cr]060
Toxicity characteristic leaching procedure030
Ann. amt sludge disposed by other method030
Annual amt of sludge incinerated030
Annual sludge production, total030
Annual amount of sludge land applied030
Annual amt. sludge disposed surface unit030
Annual amt sludge disposed in landfill030
Annual amt sludge transported interstate030
Unit w/liner/leachate collection system030
Unit boundary to property line distance030
Compliance w/part 258 sludge requirement030

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES LAL045730.

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 LAL045730 there.

Nearby on the register

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

What this page shows

This page covers NPDES permit LAL045730 held by Denham Springs, City of, Denham Springs, LA, which discharges to Amite River/Lake Pontchartrain and is administratively continued as a Major Discharger. The page lists 0 pollutants under a numeric limit and 1 pollutant with an effluent exceedance, with the permit issued January 1, 2021 and expiring December 31, 2025.