City Of San Leandro Water Pollution Control Plant - Treatment Wetland
San Leandro, CA · Alameda County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- CA0038881
- Effective
- Permit expires
- May 2027
- Population served
- 49,500
- CWNS 2022
City Of San Leandro Water Pollution Control Plant - Treatment Wetland is a publicly owned wastewater treatment works in San Leandro, Alameda County, California, serving about 49,500 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos, biogas balloons. It discharges under NPDES permit CA0038881 (effective), which expires in May 2027, with 0 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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Uncovered lagoons
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Biogas silos
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at City Of San Leandro Water Pollution Control Plant - Treatment Wetland.
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45.87 MGD
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Burlingame · 12 mi away
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Pleasanton · 15 mi away
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City Of San Leandro Water Pollution Control Plant - Treatment Wetland: 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 13, 2026.