Vallejo Flood And Wastewater District
Vallejo, CA · Napa County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 15.5 MGD
- NPDES permit
- CA0037699
- Effective
- Permit expires
- March 2028
- Population served
- 110,442
- CWNS 2022
Vallejo Flood And Wastewater District is a publicly owned wastewater treatment works in Vallejo, Napa County, California, serving about 110,442 residents. Treatment on site includes clarifiers. It discharges under NPDES permit CA0037699 (effective), which expires in March 2028, with 8 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
9 verified contacts for Vallejo Flood And Wastewater District, with validated emails and direct phone numbers.
Unlock 9 verified contacts (6 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Vallejo Flood And Wastewater District, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Rodeo · 4 mi away
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Pinole · 6 mi away
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Benicia · 6 mi away
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American Canyon · 7 mi away
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Martinez · 10 mi away
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Napa · 10 mi away
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Martinez · 12 mi away
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Sonoma · 15 mi away
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Vallejo Flood And Wastewater District: 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 4, 2025.