EBRPD - DEL VALLE REGIONAL PARK Water Quality Report
Serving roughly 9,024 people in Alameda County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for EBRPD - DEL VALLE REGIONAL PARK
1 water provider directly on file, serving roughly 9,024 people in Alameda County, California.
Quick answer: EBRPD - DEL VALLE REGIONAL PARK has no violations on file and no single reading stands out against its peers (50 other providers in this area). It serves roughly 9,024 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Copper Summary
Fluoride
Nitrate
Nickel
Chromium
Barium
Arsenic
Aluminum
Utility EBRPD - DEL VALLE REGIONAL PARKPopulation served 9,024Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0056 mg/L (ppm)
12/31/2013
Copper Summary
Detected: 1.38 mg/L (ppm)
12/31/2007
Nickel
Detected: 2.51 UG/L (ppb)
6/17/2025
Chromium
Detected: 0.774 UG/L (ppb)
6/17/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 69.9 UG/L (ppb)
6/17/2025
Arsenic
Detected: 2.5 UG/L (ppb)
6/17/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Aluminum
Detected: 155 UG/L (ppb)
6/17/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.11 MG/L (ppm)
6/17/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 0.15 MG/L (ppm)
6/17/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Filtration considerations: See the table below for how whole-house carbon, under-sink reverse osmosis, and under-sink carbon systems compare against what's actually on file here. These are general system types, not a specific product recommendation.