WHITTIER 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 WHITTIER, CA
1 water provider on file serving this city.
Quick answer: WHITTIER'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 49,954 people, and the full breakdown below reflects everything EPA and California have on record for it.
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)
Contaminants found
Metals
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: General system types, not a specific product recommendation.