Serving roughly 66,135 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for LAKEWOOD - CITY, WATER DEPT.
1 water provider directly on file, serving roughly 66,135 people in Los Angeles County, California.
Quick answer: LAKEWOOD - CITY, WATER DEPT. has no violations on file. One reading is worth knowing about: Zinc was measured at 150UG/L, among the highest of the 601 providers on file in this area. It's the most notable figure in this system's record among its 601 local peers.
Lead Summary
PFOS
PFHXS
Nitrate
Perfluorononanoicacid (PFNA)
Perfluoroctanesulfonicacid (PFOS)
Perfluorooctanesulfonicacid6:2fts
Perfluorohexanesulfonicacid (PFHxS)
TTHM
Totalhaloaceticacids (HAA5)
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Dibromoaceticacid
Trichloroaceticacid
Copper, Free
Iron
Manganese
Arsenic
Langelier Index (pH(s))
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Chloride
Sulfate
Fluoride
Perfluorobutanoicacid (PFBA)
Perfluoroctanoicacid (PFOA)
Perfluorohexanoicacid (PFHXA)
Perfluoropentanoicacid (PFPEA)
Turbidity
pH
1, 4-Dioxane
Tetrachloroethylene
Barium
Zinc
Conductivity (at 25°C)
Utility LAKEWOOD - CITY, WATER DEPT.Population served 66,135Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Copper, Free
Detected: 120 UG/L (ppb)
1/23/2025
Iron
Detected: 10 UG/L (ppb)
10/7/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 3.6 UG/L (ppb)
7/29/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Arsenic
Detected: 8.9 UG/L (ppb)
10/28/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Barium
Detected: 120 UG/L (ppb)
1/16/2025
Zinc
Detected: 150 UG/L (ppb)
1/16/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 12 UG/L (ppb)
10/7/2025
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: 4 UG/L (ppb)
7/1/2025
Chloroform
Detected: 1.7 UG/L (ppb)
10/7/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 3.3 UG/L (ppb)
10/7/2025
Bromodichloromethane
Detected: 2.4 UG/L (ppb)
10/7/2025
Dibromochloromethane
Detected: 4.5 UG/L (ppb)
10/7/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 0.4 MG/L (ppm)
1/16/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Chloride
Detected: 14 MG/L (ppm)
5/14/2025
Sulfate
Detected: 30 MG/L (ppm)
5/14/2025
Fluoride
Detected: 0.38 MG/L (ppm)
5/14/2025
Often added deliberately for dental health; can also occur naturally.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 4.95 MG/L (ppm)
5/14/2025
Potassium
Detected: 1.9 MG/L (ppm)
5/14/2025
Sodium
Detected: 30 MG/L (ppm)
5/14/2025
Calcium
Detected: 42.7 MG/L (ppm)
5/14/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: -0.693 LANG
5/14/2025
Hardness, Total (ASCACO3)
Detected: 127 MG/L (ppm)
5/14/2025
pH
Detected: 6.3 PH
5/14/2025
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: 0.0078 µg/L (ppb)
11/25/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXS
Detected: 0.0031 µg/L (ppb)
11/25/2025
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Tetrachloroethylene
Detected: 0.85 UG/L (ppb)
5/14/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 220 MG/L (ppm)
5/14/2025
Other
Additional substances tested that don't fit neatly into the categories above
Perfluorononanoicacid (PFNA)
Detected: 2.4 NG/L (ppt)
7/14/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 9.3 NG/L (ppt)
7/14/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorooctanesulfonicacid6:2fts
Detected: 7.8 NG/L (ppt)
3/4/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 2.1 NG/L (ppt)
7/14/2025
Dichloroaceticacid
Detected: 1.2 UG/L (ppb)
7/1/2025
Dibromoaceticacid
Detected: 1.1 UG/L (ppb)
10/7/2025
Trichloroaceticacid
Detected: 1 UG/L (ppb)
4/1/2025
Alkalinity, Total
Detected: 180 MG/L (ppm)
5/14/2025
TDS
Detected: 240 MG/L (ppm)
5/14/2025
Perfluorobutanoicacid (PFBA)
Detected: 1.8 NG/L (ppt)
7/14/2025
Perfluoroctanoicacid (PFOA)
Detected: 4.4 NG/L (ppt)
7/14/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanoicacid (PFHXA)
Detected: 2 NG/L (ppt)
7/14/2025
Perfluoropentanoicacid (PFPEA)
Detected: 1.7 NG/L (ppt)
5/5/2025
Turbidity
Detected: 0.2 NTU
5/14/2025
A measure of water cloudiness from suspended particles.
1, 4-Dioxane
Detected: 2.2 UG/L (ppb)
7/16/2025
Conductivity (at 25°C)
Detected: 470 UMHO/CM
1/16/2025
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.