Serving roughly 26,411 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for HI DESERT WD
1 water provider directly on file, serving roughly 26,411 people in San Bernardino County, California.
Quick answer: HI DESERT WD has no violations on file and no single reading stands out against its peers (669 other providers in this area). It serves roughly 26,411 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
PFPEA
PFHXA
PFHXS
TTHM
Bromoform
Bromodichloromethane
Dibromochloromethane
Nitrate
Arsenic
TDS
Fluoride
Utility HI DESERT WDPopulation served 26,411Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0017 mg/L (ppm)
12/31/2023
Arsenic
Detected: 7 UG/L (ppb)
10/2/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 5.8 UG/L (ppb)
8/14/2025
A group of disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure above the legal limit has been linked to increased cancer risk in some studies.
Bromoform
Detected: 2.6 UG/L (ppb)
8/14/2025
Bromodichloromethane
Detected: 0.99 UG/L (ppb)
8/14/2025
Dibromochloromethane
Detected: 2.2 UG/L (ppb)
8/14/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 5.4 MG/L (ppm)
10/2/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Fluoride
Detected: 0.2 MG/L (ppm)
9/4/2025
Often added deliberately for dental health; can also occur naturally.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 9.3 µg/L (ppb)
3/11/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFPEA
Detected: 0.0034 µg/L (ppb)
3/11/2025
PFHXA
Detected: 0.0034 µg/L (ppb)
3/11/2025
PFHXS
Detected: 0.003 µg/L (ppb)
3/11/2025
Other
Additional substances tested that don't fit neatly into the categories above
TDS
Detected: 310 MG/L (ppm)
10/2/2025
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.