Dauphin Island WWTP
Dauphin Island, AL · Mobile County · Publicly Owned Treatment Works
- Average flow
- 0.46 MGD
- Design flow
- —
- NPDES permit
- AL0075370
- Effective
- Permit expires
- July 2030
- Population served
- 1,820
- CWNS 2022
Dauphin Island WWTP is a publicly owned wastewater treatment works in Dauphin Island, Mobile County, Alabama treating an average of 0.46 million gallons per day, serving about 1,820 residents. It discharges under NPDES permit AL0075370 (effective), which expires in July 2030, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
6 verified contacts for Dauphin Island WWTP, with validated emails and direct phone numbers.
Unlock 6 verified contacts (3 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Dauphin Island WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Alabama
Bayou La Batre · 12 mi away
0.63 MGD
Mobile · 26 mi away
—
Foley · 29 mi away
2.07 MGD
Orange Beach · 30 mi away
3.36 MGD
Mobile · 32 mi away
7.48 MGD
Mobile · 32 mi away
—
Robertsdale · 33 mi away
1.1 MGD
Chickasaw · 35 mi away
0.3 MGD
Dauphin Island WWTP: 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 March 15, 2025.