Yountville - Veterans WWTF
Yountville, CA · Napa County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.55 MGD
- NPDES permit
- CA0038121
- Expired
- Permit expires
- November 2025
- Population served
- 2,970
- CWNS 2022
Yountville - Veterans WWTF is a publicly owned wastewater treatment works in Yountville, Napa County, California, serving about 2,970 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit CA0038121 (expired), which expires in November 2025, with 22 recorded violations 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
- 22
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Yountville - Veterans WWTF, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Yountville - Veterans WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Saint Helena · 9 mi away
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Sonoma · 11 mi away
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Napa · 12 mi away
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American Canyon · 15 mi away
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Calistoga · 16 mi away
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Vallejo · 22 mi away
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Santa Rosa · 22 mi away
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Novato · 23 mi away
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Yountville - Veterans WWTF: 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 August 18, 2026.