HEMET is served by 2 water providers on file with the EPA.
Data current as of July 2026
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Results for HEMET, CA
2 water providers on file serving this city.
Quick answer: HEMET's water has no violation currently counted toward its compliance status. EPA's record shows a Nitrate violation dating to 11/01/1983 (43 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
Lead
Copper, Free
Magnesium
Sodium
Calcium
Potassium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Sulfate
Chloride
Fluoride
Nitrate
Turbidity
Combined Uranium
Gross Alpha Particle Activity
Gross Beta Particle Activity
pH
Barium
Arsenic
Zinc
Conductivity (at 25°C)
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Bromoform
Dibromochloromethane
Bromodichloromethane
Chloroform
Dibromoaceticacid
Dichloroaceticacid
Monobromoaceticacid
Trichloroaceticacid
Silica
Carbon, Total
Boron, Total
Perchlorate
Chromium
Selenium
Violations on file
Nitrate
Older/archived health-based violation
Found at 1 of 2 providers
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: 0.0046 mg/L (ppm)
Found at 2 providers
Lead
Detected: 71 UG/L (ppb)
Found at 2 providers
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: 200 UG/L (ppb)
Found at 2 providers
Combined Uranium
Detected: 2.71 PCI/L
8/5/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Barium
Detected: 540 UG/L (ppb)
Found at 2 providers
Arsenic
Detected: 4.2 UG/L (ppb)
Found at 2 providers
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Zinc
Detected: 24 UG/L (ppb)
Found at 2 providers
Chromium
Detected: 2.9 UG/L (ppb)
3/17/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Selenium
Detected: 12 UG/L (ppb)
3/17/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 15 UG/L (ppb)
5/12/2025
TTHM
Detected: 8.6 UG/L (ppb)
8/18/2025
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: 3.3 UG/L (ppb)
8/18/2025
Dibromochloromethane
Detected: 3 UG/L (ppb)
8/18/2025
Bromodichloromethane
Detected: 1.6 UG/L (ppb)
8/18/2025
Chloroform
Detected: 0.54 UG/L (ppb)
8/18/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 256 MG/L (ppm)
Found at 2 providers
Chloride
Detected: 155 MG/L (ppm)
Found at 2 providers
Fluoride
Detected: 0.36 MG/L (ppm)
Found at 2 providers
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 4.8 MG/L (ppm)
Found at 2 providers
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Boron, Total
Detected: 476 UG/L (ppb)
8/5/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 16.9 MG/L (ppm)
Found at 2 providers
Sodium
Detected: 126 MG/L (ppm)
Found at 2 providers
Calcium
Detected: 92.8 MG/L (ppm)
Found at 2 providers
Potassium
Detected: 8 MG/L (ppm)
Found at 2 providers
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 301 MG/L (ppm)
Found at 2 providers
Gross Alpha Particle Activity
Detected: 4.97 PCI/L
Found at 2 providers
pH
Detected: 8 PH
Found at 2 providers
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 16 µg/L (ppb)
3/17/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 180 MG/L (ppm)
Found at 2 providers
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 180 MG/L (ppm)
Found at 2 providers
TDS
Detected: 802 MG/L (ppm)
Found at 2 providers
Turbidity
Detected: 0.16 NTU
Found at 2 providers
A measure of water cloudiness from suspended particles.
Gross Beta Particle Activity
Detected: 16.3 PCI/L
8/5/2025
Conductivity (at 25°C)
Detected: 1200 UMHO/CM
Found at 2 providers
Dibromoaceticacid
Detected: 3.6 UG/L (ppb)
8/18/2025
Dichloroaceticacid
Detected: 1.8 UG/L (ppb)
8/18/2025
Monobromoaceticacid
Detected: 1.5 UG/L (ppb)
2/10/2025
Trichloroaceticacid
Detected: 1.6 UG/L (ppb)
5/12/2025
Silica
Detected: 22.5 MG/L (ppm)
8/5/2025
Carbon, Total
Detected: 0.31 MG/L (ppm)
8/5/2025
Perchlorate
Detected: 1 UG/L (ppb)
10/6/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Filtration considerations: General system types, not a specific product recommendation.