WESTERN HEIGHTS WATER COMPANY Water Quality Report
Serving roughly 7,705 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for WESTERN HEIGHTS WATER COMPANY
1 water provider directly on file, serving roughly 7,705 people in San Bernardino County, California.
Quick answer: WESTERN HEIGHTS WATER COMPANY has no violation currently counted toward its compliance status. EPA's record shows a Nitrate violation dating to 07/01/1987 (39 years ago) — because it's more than five years past its deadline, EPA's policy no longer treats it as part of this system's current standing, though it remains on the public record.
Lead Summary
TTHM
Bromoform
Bromodichloromethane
Dibromochloromethane
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Chloride
Sulfate
Fluoride
Nitrate-Nitrite
Nitrate
pH
Odor
Vanadium, Total
Chromium, Hex
Perchlorate
Chromium
Conductivity (at 25°C)
Utility WESTERN HEIGHTS WATER COMPANYPopulation served 7,705Owner Private
Older violation on record
Violations on file
Nitrate
Older/archived health-based violation
Found at 1 of 1 provider
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Vanadium, Total
Detected: 4.6 UG/L (ppb)
6/23/2025
Chromium, Hex
Detected: 11 UG/L (ppb)
8/4/2025
Chromium
Detected: 10 UG/L (ppb)
5/6/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 9.3 UG/L (ppb)
8/4/2025
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: 4 UG/L (ppb)
8/4/2025
Bromodichloromethane
Detected: 1.6 UG/L (ppb)
8/4/2025
Dibromochloromethane
Detected: 3.7 UG/L (ppb)
8/4/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 12 MG/L (ppm)
6/23/2025
Sulfate
Detected: 38 MG/L (ppm)
6/23/2025
Fluoride
Detected: 0.47 MG/L (ppm)
6/23/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 2.5 MG/L (ppm)
6/23/2025
Nitrate
Detected: 7.8 MG/L (ppm)
9/2/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 9.8 MG/L (ppm)
6/23/2025
Potassium
Detected: 2.1 MG/L (ppm)
6/23/2025
Sodium
Detected: 30 MG/L (ppm)
6/23/2025
Calcium
Detected: 54 MG/L (ppm)
6/23/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 170 MG/L (ppm)
6/23/2025
pH
Detected: 8 PH
6/23/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 230 MG/L (ppm)
6/23/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 180 MG/L (ppm)
6/23/2025
TDS
Detected: 340 MG/L (ppm)
6/23/2025
Odor
Detected: 1 TON
6/23/2025
Perchlorate
Detected: 2.4 UG/L (ppb)
5/6/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 470 UMHO/CM
6/23/2025
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.