1444 Borregas Ave, Sunnyvale, CA 94089 · Santa Clara County · Publicly Owned Treatment Works
Sunnyvale Water Pollution Control Plant is a publicly owned wastewater treatment works in Sunnyvale, Santa Clara County, California, serving about 138,290 residents. It discharges under NPDES permit CA0037621 (expired), which expires in March 2025, with 22 recorded violations in the last three years.
2 treatment structures and unit processes identified at Sunnyvale Water Pollution Control Plant.
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See the full treatment train at Sunnyvale Water Pollution Control Plant: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
2 verified contacts for Sunnyvale Water Pollution Control Plant, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Sunnyvale Water Pollution Control Plant, plus the full compliance history and discharge data.
Union City · 13 mi away
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San Mateo · 18 mi away
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Pleasanton · 19 mi away
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Pleasanton · 20 mi away
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Livermore · 22 mi away
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Burlingame · 22 mi away
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Half Moon Bay · 24 mi away
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San Francisco · 25 mi away
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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 October 26, 2026; facility record last updated July 29, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms