SANTA MONICA is served by 1 water provider on file with the EPA.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for SANTA MONICA, CA
1 water provider on file serving this city.
Quick answer: SANTA MONICA's water has no violations on file and no single reading stands out against its peers (1 other providers in this area). It serves roughly 89,947 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
PFBA
PFHXA
PFOA
PFHPA
PFBS
PFPEA
Trichloroethylene
Tetrachloroethylene
Cis-1, 2-Dichloroethylene
1, 1-Dichloroethylene
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Magnesium
Potassium
Sodium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
Calcium
TDS
Sulfate
Chloride
Fluoride
Nitrate
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanesulfonicacid (PFHxS)
Perfluorobutanoicacid (PFBA)
Perfluoropentanoicacid (PFPEA)
Turbidity
Gross Alpha Particle Activity
Radium-226
Radium-228
pH
Molybdenum, Total
Iron
Chromium, Hex
Perchlorate
Nickel
Chromium
Barium
Selenium
Copper, Free
Zinc
Arsenic
1, 4-Dioxane
Methyltert-Butylether
Manganese
1, 1, 2-Trichloroethane
Conductivity (at 25°C)
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0014 mg/L (ppm)
12/31/2025
Molybdenum, Total
Detected: 2.4 UG/L (ppb)
4/15/2025
Iron
Detected: 59 UG/L (ppb)
10/6/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Chromium, Hex
Detected: 1.7 UG/L (ppb)
3/19/2025
Nickel
Detected: 2.8 UG/L (ppb)
4/15/2025
Chromium
Detected: 1.2 UG/L (ppb)
8/25/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 49 UG/L (ppb)
8/25/2025
Selenium
Detected: 3.5 UG/L (ppb)
4/15/2025
Copper, Free
Detected: 1.5 UG/L (ppb)
4/15/2025
Zinc
Detected: 6.1 UG/L (ppb)
4/15/2025
Arsenic
Detected: 2.7 UG/L (ppb)
8/25/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Manganese
Detected: 17.1 UG/L (ppb)
10/6/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Chloroform
Detected: 0.5 UG/L (ppb)
10/20/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 3.1 UG/L (ppb)
10/27/2025
Bromodichloromethane
Detected: 0.6 UG/L (ppb)
2/3/2025
Dibromochloromethane
Detected: 0.5 UG/L (ppb)
10/27/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 221 MG/L (ppm)
4/15/2025
Chloride
Detected: 116 MG/L (ppm)
4/15/2025
Fluoride
Detected: 0.31 MG/L (ppm)
4/15/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 4.1 MG/L (ppm)
4/15/2025
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: 62 MG/L (ppm)
8/25/2025
Potassium
Detected: 5.2 MG/L (ppm)
8/25/2025
Sodium
Detected: 130 MG/L (ppm)
8/25/2025
Calcium
Detected: 128 MG/L (ppm)
4/15/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 530 MG/L (ppm)
4/15/2025
Gross Alpha Particle Activity
Detected: 9.94 PCI/L
8/25/2025
pH
Detected: 7.09 PH
4/15/2025
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
Lithium
Detected: 10.5 µg/L (ppb)
11/21/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFBA
Detected: 0.0088 µg/L (ppb)
8/21/2024
PFHXA
Detected: 0.0179 µg/L (ppb)
8/21/2024
PFOA
Detected: 0.0046 µg/L (ppb)
8/21/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHPA
Detected: 0.005 µg/L (ppb)
8/21/2024
PFBS
Detected: 0.0045 µg/L (ppb)
8/21/2024
PFPEA
Detected: 0.022 µg/L (ppb)
8/21/2024
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Trichloroethylene
Detected: 0.8 UG/L (ppb)
10/27/2025
Tetrachloroethylene
Detected: 0.5 UG/L (ppb)
10/6/2025
Cis-1, 2-Dichloroethylene
Detected: 1.3 UG/L (ppb)
10/27/2025
1, 1-Dichloroethylene
Detected: 0.6 UG/L (ppb)
10/27/2025
1, 1, 2-Trichloroethane
Detected: 0.5 UG/L (ppb)
7/28/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 316 MG/L (ppm)
4/15/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 259 MG/L (ppm)
4/15/2025
TDS
Detected: 823 MG/L (ppm)
4/22/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 3.1 NG/L (ppt)
9/30/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 2.7 NG/L (ppt)
9/30/2025
Perfluorobutanoicacid (PFBA)
Detected: 3.3 NG/L (ppt)
9/30/2025
Perfluoropentanoicacid (PFPEA)
Detected: 3 NG/L (ppt)
9/30/2025
Turbidity
Detected: 0.86 NTU
4/15/2025
A measure of water cloudiness from suspended particles.
Radium-226
Detected: 0.319 PCI/L
8/25/2025
Radium-228
Detected: 0.446 PCI/L
8/25/2025
Perchlorate
Detected: 0.84 UG/L (ppb)
4/22/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
1, 4-Dioxane
Detected: 0.68 UG/L (ppb)
8/4/2025
Methyltert-Butylether
Detected: 0.57 UG/L (ppb)
8/25/2025
Conductivity (at 25°C)
Detected: 1201 UMHO/CM
4/15/2025
Filtration considerations: General system types, not a specific product recommendation.