ADELANTO is served by 1 water provider on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for ADELANTO, CA
1 water provider on file serving this city.
Quick answer: ADELANTO's water has no violation currently counted toward its compliance status. EPA's record shows a Fluoride violation dating to 07/01/1988 (38 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
Copper Summary
PFOS
PFHXS
Lithium
TTHM
Totalhaloaceticacids (HAA5)
Bromoform
Chloroform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Fluoride
Manganese
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorobutanoicacid (PFBA)
Arsenic
Magnesium
Potassium
Sodium
Calcium
Hardness, Total (ASCACO3)
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Sulfate
Chloride
Alkalinity, Carbonate
Nitrate
Nitrate-Nitrite
Perfluorohexanoicacid (PFHXA)
Perfluoropentanoicacid (PFPEA)
Perfluoropentanesulfonicacid (PFPES)
Turbidity
Combined Uranium
Gross Alpha Particle Activity
pH
Odor
Vanadium, Total
Boron, Total
Chromium, Hex
Barium
Conductivity (at 25°C)
Color
Violations on file
Fluoride
Older/archived health-based violation
Found at 1 of 1 provider
Often added deliberately for dental health; can also occur naturally.
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Copper Summary
Detected: 1.589 mg/L (ppm)
12/31/2003
Manganese
Detected: 28 UG/L (ppb)
10/7/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Arsenic
Detected: 9.1 UG/L (ppb)
8/19/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Combined Uranium
Detected: 1.8 PCI/L
8/19/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Vanadium, Total
Detected: 7.1 UG/L (ppb)
8/19/2025
Chromium, Hex
Detected: 1 UG/L (ppb)
1/22/2025
Barium
Detected: 150 UG/L (ppb)
8/19/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 1.1 UG/L (ppb)
7/8/2025
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.
Totalhaloaceticacids (HAA5)
Detected: 8.9 UG/L (ppb)
7/8/2025
Bromoform
Detected: 1.1 UG/L (ppb)
7/8/2025
Chloroform
Detected: 3.6 UG/L (ppb)
7/8/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromodichloromethane
Detected: 11.8 UG/L (ppb)
7/8/2025
Dibromochloromethane
Detected: 22.8 UG/L (ppb)
7/8/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.46 MG/L (ppm)
10/15/2025
Often added deliberately for dental health; can also occur naturally.
Sulfate
Detected: 55 MG/L (ppm)
8/19/2025
Chloride
Detected: 40 MG/L (ppm)
8/19/2025
Nitrate
Detected: 0.44 MG/L (ppm)
8/19/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Nitrate-Nitrite
Detected: 0.44 MG/L (ppm)
8/19/2025
Boron, Total
Detected: 210 UG/L (ppb)
8/19/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 9.6 MG/L (ppm)
8/19/2025
Potassium
Detected: 4.9 MG/L (ppm)
8/19/2025
Sodium
Detected: 60 MG/L (ppm)
8/19/2025
Calcium
Detected: 51 MG/L (ppm)
8/19/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 170 MG/L (ppm)
8/19/2025
Gross Alpha Particle Activity
Detected: 6.6 PCI/L
8/19/2025
pH
Detected: 7.6 PH
8/19/2025
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
PFOS
Detected: 0.0045 µg/L (ppb)
9/24/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXS
Detected: 0.0046 µg/L (ppb)
9/24/2024
Lithium
Detected: 11.1 µg/L (ppb)
9/24/2024
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: 220 MG/L (ppm)
8/19/2025
Alkalinity, Carbonate
Detected: 12 MG/L (ppm)
8/19/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 1.8 UG/L (ppb)
7/8/2025
Trichloroaceticacid
Detected: 1.6 UG/L (ppb)
7/8/2025
Dibromoaceticacid
Detected: 5.5 UG/L (ppb)
7/8/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 2.4 NG/L (ppt)
1/22/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 4.1 NG/L (ppt)
1/22/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 5.1 NG/L (ppt)
1/22/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 2.6 NG/L (ppt)
1/22/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorobutanoicacid (PFBA)
Detected: 3.2 NG/L (ppt)
1/22/2025
Alkalinity, Total
Detected: 180 MG/L (ppm)
8/19/2025
TDS
Detected: 340 MG/L (ppm)
8/19/2025
Perfluorohexanoicacid (PFHXA)
Detected: 3.7 NG/L (ppt)
1/22/2025
Perfluoropentanoicacid (PFPEA)
Detected: 2.1 NG/L (ppt)
1/22/2025
Perfluoropentanesulfonicacid (PFPES)
Detected: 2.4 NG/L (ppt)
1/22/2025
Turbidity
Detected: 0.19 NTU
8/19/2025
A measure of water cloudiness from suspended particles.
Odor
Detected: 1 TON
8/19/2025
Conductivity (at 25°C)
Detected: 570 UMHO/CM
8/19/2025
Color
Detected: 15 UNITS
8/19/2025
Filtration considerations: General system types, not a specific product recommendation.