GOLDEN STATE WATER CO - WRIGHTWOOD Water Quality Report
Serving roughly 4,177 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for GOLDEN STATE WATER CO - WRIGHTWOOD
1 water provider directly on file, serving roughly 4,177 people in San Bernardino County, California.
Quick answer: GOLDEN STATE WATER CO - WRIGHTWOOD has no violations on file and no single reading stands out against its peers (669 other providers in this area). It serves roughly 4,177 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
PFBS
Lead
Copper, Free
Nitrate
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanoicacid (PFHXA)
Perfluoropentanoicacid (PFPEA)
Iron
Manganese
Chromium, Hex
Utility GOLDEN STATE WATER CO - WRIGHTWOODPopulation served 4,177Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0036 mg/L (ppm)
12/31/2025
Lead
Detected: 0.88 UG/L (ppb)
7/29/2025
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: 120 UG/L (ppb)
7/29/2025
Iron
Detected: 100 UG/L (ppb)
5/5/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 110 UG/L (ppb)
8/4/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 0.55 UG/L (ppb)
1/29/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 4.7 MG/L (ppm)
7/28/2025
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: 15.9 µg/L (ppb)
8/13/2024
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFBS
Detected: 0.0055 µg/L (ppb)
8/13/2024
Other
Additional substances tested that don't fit neatly into the categories above
Perfluorobutanesulfonicacid (PFBS)
Detected: 4.5 NG/L (ppt)
7/31/2025
Perfluorohexanoicacid (PFHXA)
Detected: 3.8 NG/L (ppt)
7/31/2025
Perfluoropentanoicacid (PFPEA)
Detected: 3.8 NG/L (ppt)
7/31/2025
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.