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Denham Springs Wastewater Treatment Facility

9300 Forrest Delatte Road, Denham Springs, LA 70726 · Livingston County · Publicly Owned Treatment Works

Average flow
2.67 MGD
Design flow
—
NPDES permit
LAL045730
Effective
Permit expires
December 2030
Population served
12,631
CWNS 2022

Denham Springs Wastewater Treatment Facility is a publicly owned wastewater treatment works in Denham Springs, Livingston County, Louisiana treating an average of 2.67 million gallons per day, serving about 12,631 residents. It discharges under NPDES permit LAL045730 (effective), which expires in December 2030, with 193 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in April 2017.

Treatment technology

3 treatment structures and unit processes identified at Denham Springs Wastewater Treatment Facility.

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Compliance snapshot (last 3 years)

Total violations
193
Effluent violations
182

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

EPA enforcement history

Federal civil enforcement cases, compliance inspections and informal actions recorded for Denham Springs Wastewater Treatment Facility in EPA's ICIS system.

Formal actions
3
0 since FY2020
Compliance actions
$5,300
required by EPA orders
EPA inspections
0
none on record

Latest case · Apr 2017

Denham Springs, City of

Administrative order · CWA, Sewage Sludge Disposal · Unilateral Administrative Order Without Adjudication · Compliance actions $200

Source: EPA ECHO, civil enforcement case 06-2015-1824.

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Every action against Denham Springs Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

2 verified contacts for Denham Springs Wastewater Treatment Facility, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Denham Springs Wastewater Treatment Facility, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Louisiana

Livingston Parish Sewer District- Buddy Ellis Road Regional POTW

Denham Springs · 2 mi away

0.37 MGD

Suma Crossing STP

Livingston · 8 mi away

0.23 MGD

0.69 MGD

South Wastewater Treatment Plant

Baton Rouge · 14 mi away

41.82 MGD

St. Gabriel WWTP

Saint Gabriel · 16 mi away

0.09 MGD

Sunshine WWTP

Sunshine · 16 mi away

0.11 MGD

Port Allen Water System

Port Allen · 17 mi away

0.74 MGD

Denham Springs Wastewater Treatment Facility: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 26, 2026; facility record last updated September 14, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms


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