Serving roughly 49,954 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
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Results for WHITTIER-CITY, WATER DEPT.
1 water provider directly on file, serving roughly 49,954 people in Los Angeles County, California.
Quick answer: WHITTIER-CITY, WATER DEPT. has no violations on file. One reading is worth knowing about: Perfluorobutanoicacid (PFBA) was measured at 12NG/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
Aggressive Index
Calcium
Alkalinity, Total
Fluoride
Nitrate
Perfluorobutanesulfonicacid (PFBS)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorodecanoicacid (PFDA)
Perfluorohexanoicacid (PFHXA)
Perfluorobutanoicacid (PFBA)
Perfluoropentanoicacid (PFPEA)
Perfluoroheptanoicacid (PFHPA)
Perfluorononanoicacid (PFNA)
Utility WHITTIER-CITY, WATER DEPT.Population served 49,954Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Fluoride
Detected: 0.2 MG/L (ppm)
9/10/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 2.4 MG/L (ppm)
9/10/2025
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
Calcium
Detected: 78.8 MG/L (ppm)
4/16/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 12.4 AGGR
4/16/2025
Alkalinity, Total
Detected: 190 MG/L (ppm)
4/16/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 4.9 NG/L (ppt)
10/1/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 2.3 NG/L (ppt)
10/1/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 11 NG/L (ppt)
10/1/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 7.8 NG/L (ppt)
10/1/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorodecanoicacid (PFDA)
Detected: 2.3 NG/L (ppt)
10/1/2025
Perfluorohexanoicacid (PFHXA)
Detected: 2.7 NG/L (ppt)
10/1/2025
Perfluorobutanoicacid (PFBA)
Detected: 12 NG/L (ppt)
10/1/2025
Perfluoropentanoicacid (PFPEA)
Detected: 3.4 NG/L (ppt)
10/1/2025
Perfluoroheptanoicacid (PFHPA)
Detected: 2.1 NG/L (ppt)
5/1/2025
Perfluorononanoicacid (PFNA)
Detected: 2 NG/L (ppt)
10/1/2025
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.