GOLDEN STATE WATER CO - APPLE VLY SOUTH Water Quality Report
Serving roughly 6,208 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
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Results for GOLDEN STATE WATER CO - APPLE VLY SOUTH
1 water provider directly on file, serving roughly 6,208 people in San Bernardino County, California.
Quick answer: GOLDEN STATE WATER CO - APPLE VLY SOUTH has no violations on file and no single reading stands out against its peers (669 other providers in this area). It serves roughly 6,208 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
Lead
Copper, Free
Nitrate
Adsorbableorganicfluorine
Iron
Chromium, Hex
Perchlorate
Utility GOLDEN STATE WATER CO - APPLE VLY SOUTHPopulation served 6,208Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Lead
Detected: 0.5 UG/L (ppb)
6/12/2025
A metal that can leach from old pipes, solder, and fixtures. Current medical guidance holds there is no truly safe level of lead exposure, especially for children and pregnant women.
Copper, Free
Detected: 92 UG/L (ppb)
8/12/2025
Iron
Detected: 390 UG/L (ppb)
1/15/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Chromium, Hex
Detected: 1 UG/L (ppb)
1/15/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 1.2 MG/L (ppm)
1/15/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 21.6 µg/L (ppb)
5/20/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Other
Additional substances tested that don't fit neatly into the categories above
Adsorbableorganicfluorine
Detected: 1300 NG/L (ppt)
5/16/2025
Perchlorate
Detected: 1.2 UG/L (ppb)
1/15/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
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.