West Biloxi Wastewater Treatment Plant
Biloxi, MS · Harrison County · Publicly Owned Treatment Works
- Average flow
- 4.07 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 4.07 million gallons per day against a permitted design capacity of 11.7 MGD. Treatment on site includes clarifiers, disinfection, chlorine/ chloramine. It discharges under NPDES permit MS0030333 (effective), which expires in June 2028, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
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.
Key contacts
Decision-makers at West Biloxi Wastewater Treatment Plant.
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Biloxi · 4 mi away
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Gulfport · 12 mi away
0.05 MGD
Gulfport · 12 mi away
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Long Beach · 14 mi away
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Pass Christian · 17 mi away
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Gautier · 20 mi away
—
Pascagoula · 24 mi away
4.4 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 September 11, 2026; facility record last updated May 20, 2025.