CALIFORNIA WATER SERVICE CO. - HERM/REDO Water Quality Report
Serving roughly 96,853 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
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Results for CALIFORNIA WATER SERVICE CO. - HERM/REDO
1 water provider directly on file, serving roughly 96,853 people in Los Angeles County, California.
Quick answer: CALIFORNIA WATER SERVICE CO. - HERM/REDO has no violations on file and no single reading stands out against its peers (601 other providers in this area). It serves roughly 96,853 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
Temperature (CENTIGRADE)
Fluoride
Nitrate
Turbidity
pH, Field
Utility CALIFORNIA WATER SERVICE CO. - HERM/REDOPopulation served 96,853Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0014 mg/L (ppm)
12/31/2023
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.7 MG/L (ppm)
9/9/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 0.4 MG/L (ppm)
5/15/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
pH, Field
Detected: 8.2 PH
10/28/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 26.1 µg/L (ppb)
10/14/2025
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
Temperature (CENTIGRADE)
Detected: 21.9 C
10/28/2025
Turbidity
Detected: 0.2 NTU
10/28/2025
A measure of water cloudiness from suspended particles.
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.