SANTA ANA 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
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Results for SANTA ANA, CA
1 water provider on file serving this city.
Quick answer: SANTA ANA'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 310,539 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
PFHXS
Lithium
PFOA
PFOS
PFHXA
PFPEA
Calcium
Alkalinity, Total
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Bromide
Alkalinity, Bicarbonate
Carbon, Total
TDS
Sulfate
Chloride
Fluoride
Nitrate-Nitrite
Nitrate
Nitrite
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanoicacid (PFHXA)
Perfluoropentanoicacid (PFPEA)
Perfluoroheptanoicacid (PFHPA)
Perfluorobutanoicacid (PFBA)
pH
Vanadium, Total
Iron
Chromium, Hex
Perchlorate
Nickel
Chromium
Barium
Arsenic
Selenium
Aluminum
Conductivity (at 25°C)
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Trichloroaceticacid
Dibromoaceticacid
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Vanadium, Total
Detected: 4.5 UG/L (ppb)
7/8/2025
Iron
Detected: 10.9 UG/L (ppb)
7/8/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Chromium, Hex
Detected: 0.26 UG/L (ppb)
5/13/2025
Nickel
Detected: 1.5 UG/L (ppb)
7/8/2025
Chromium
Detected: 1.5 UG/L (ppb)
7/8/2025
Occurs in two forms — trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 50.3 UG/L (ppb)
7/8/2025
Arsenic
Detected: 1.4 UG/L (ppb)
7/8/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Selenium
Detected: 1.6 UG/L (ppb)
7/8/2025
Aluminum
Detected: 5.2 UG/L (ppb)
7/8/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 6.7 UG/L (ppb)
8/14/2025
TTHM
Detected: 31 UG/L (ppb)
8/14/2025
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.
Chloroform
Detected: 6.7 UG/L (ppb)
8/14/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 3.1 UG/L (ppb)
8/14/2025
Bromodichloromethane
Detected: 9.5 UG/L (ppb)
8/14/2025
Dibromochloromethane
Detected: 11.7 UG/L (ppb)
8/14/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 73.4 MG/L (ppm)
7/8/2025
Chloride
Detected: 19.6 MG/L (ppm)
7/8/2025
Fluoride
Detected: 0.28 MG/L (ppm)
7/8/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 3.86 MG/L (ppm)
10/14/2025
Nitrate
Detected: 3.86 MG/L (ppm)
10/14/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Nitrite
Detected: 0.009 MG/L (ppm)
1/14/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Calcium
Detected: 51.3 MG/L (ppm)
7/8/2025
Magnesium
Detected: 11.3 MG/L (ppm)
7/8/2025
Potassium
Detected: 1.8 MG/L (ppm)
7/8/2025
Sodium
Detected: 45.8 MG/L (ppm)
7/8/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 175 MG/L (ppm)
7/8/2025
pH
Detected: 8 PH
7/8/2025
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
PFHXS
Detected: 0.003 µg/L (ppb)
2/11/2025
Lithium
Detected: 27.8986 µg/L (ppb)
10/20/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFOA
Detected: 0.0057 µg/L (ppb)
2/11/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFOS
Detected: 0.0046 µg/L (ppb)
2/11/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXA
Detected: 0.004 µg/L (ppb)
2/11/2025
PFPEA
Detected: 0.0036 µg/L (ppb)
2/11/2025
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Bromide
Detected: 0.04 MG/L (ppm)
7/8/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 192 MG/L (ppm)
7/8/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 158 MG/L (ppm)
7/8/2025
Carbon, Total
Detected: 0.1 MG/L (ppm)
7/8/2025
TDS
Detected: 326 MG/L (ppm)
7/8/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 3.4 NG/L (ppt)
7/8/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 2.4 NG/L (ppt)
7/8/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 5.9 NG/L (ppt)
7/8/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorobutanesulfonicacid (PFBS)
Detected: 2.8 NG/L (ppt)
7/8/2025
Perfluorohexanoicacid (PFHXA)
Detected: 2.7 NG/L (ppt)
7/8/2025
Perfluoropentanoicacid (PFPEA)
Detected: 2.3 NG/L (ppt)
7/8/2025
Perfluoroheptanoicacid (PFHPA)
Detected: 2.7 NG/L (ppt)
7/8/2025
Perfluorobutanoicacid (PFBA)
Detected: 2.7 NG/L (ppt)
7/8/2025
Perchlorate
Detected: 1.8 UG/L (ppb)
8/12/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 500 UMHO/CM
7/8/2025
Dichloroaceticacid
Detected: 3.9 UG/L (ppb)
8/14/2025
Trichloroaceticacid
Detected: 1.8 UG/L (ppb)
8/14/2025
Dibromoaceticacid
Detected: 1 UG/L (ppb)
8/14/2025
Filtration considerations: General system types, not a specific product recommendation.