Klarifi Logo
Try for freeLog in
Klarifi Logo

West Biloxi Wastewater Treatment Plant

370 Rosalie Maria Dr, Biloxi, MS 39531 · Harrison County · Publicly Owned Treatment Works

Average flow
5.57 MGD
Design flow
11.7 MGD
NPDES permit
MS0030333
Effective
Permit expires
June 2028
Population served
—
CWNS 2022

West Biloxi Wastewater Treatment Plant is a publicly owned wastewater treatment works in Biloxi, Harrison County, Mississippi treating an average of 5.57 million gallons per day against a permitted design capacity of 11.7 MGD. It discharges under NPDES permit MS0030333 (effective), which expires in June 2028, with 1 recorded violation in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in January 2007.

Treatment technology

2 treatment structures and unit processes identified at West Biloxi Wastewater Treatment Plant.

Available with a free Klarifi account

See the full treatment train at West Biloxi Wastewater Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.

Create a free account

Compliance snapshot (last 3 years)

Total violations
1
Effluent violations
1

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 West Biloxi Wastewater Treatment Plant in EPA's ICIS system.

Formal actions
1
0 since FY2020
Compliance actions
$700,000
required by EPA orders
EPA inspections
0
none on record

Latest case · Jan 2007

BILOXI, MS, CITY OF (EAST BILOXI (KEEGAN BAYOU) WWTP / WEST BILOXI WWTP)

Administrative order · CWA, NPDES Discharge without a Permit · Unilateral Administrative Order Without Adjudication · Compliance actions $700,000 · The case also names 1 other plant, and its amounts cover all of them

Source: EPA ECHO, civil enforcement case 04-2004-4814.

Full case history with a free Klarifi account

Every action against West Biloxi Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

Create a free account

Key contacts

Decision-makers at West Biloxi Wastewater Treatment Plant.

No verified contacts on file yet

Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.

Try Klarifi free

Nearby wastewater treatment plants in Mississippi

Harrison County Wastewater And Solid Waste Management Authority, East Biloxi Pot

Biloxi · 4 mi away

2.95 MGD

Harrison County School District

Gulfport · 12 mi away

0.27 MGD

Long Beach Industrial District Park

Long Beach · 14 mi away

0.22 MGD

Jcua - West Jackson County WWTP

Pascagoula · 24 mi away

5.09 MGD

Diamondhead Water Sewer District

Diamondhead · 25 mi away

0.98 MGD

1 MGD

West Biloxi Wastewater Treatment Plant: 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 May 20, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms


Try Klarifi for free

Create your own trial account and explore how Klarifi can help you.

Try for free