Serving roughly 5,325 people in Los Angeles County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for LA HABRA HEIGHTS CWD
1 water provider directly on file, serving roughly 5,325 people in Los Angeles County, California.
Quick answer: LA HABRA HEIGHTS CWD has no violations on file. One reading is worth knowing about: TTHM was measured at 70UG/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
PFOA
PFHXA
PFBA
PFOS
PFHXS
PFPEA
PFBS
Lithium
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Monobromoaceticacid
Dibromoaceticacid
Aggressive Index
Potassium
Magnesium
Calcium
Sodium
Hardness, Total (ASCACO3)
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Chloride
Sulfate
Fluoride
Nitrate
Nitrate-Nitrite
Perfluorobutanesulfonicacid (PFBS)
Perfluoroheptanoicacid (PFHPA)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorohexanoicacid (PFHXA)
Perfluorobutanoicacid (PFBA)
Perfluoropentanoicacid (PFPEA)
Perfluorononanoicacid (PFNA)
Turbidity
pH
Chromium, Hex
Arsenic
Zinc
1, 4-Dioxane
Conductivity (at 25°C)
Utility LA HABRA HEIGHTS CWDPopulation served 5,325Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Chromium, Hex
Detected: 0.54 UG/L (ppb)
7/8/2025
Arsenic
Detected: 3.8 UG/L (ppb)
9/17/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Zinc
Detected: 17 UG/L (ppb)
9/17/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 7.6 UG/L (ppb)
2/11/2025
TTHM
Detected: 70 UG/L (ppb)
8/12/2025
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: 8 UG/L (ppb)
8/12/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 29 UG/L (ppb)
8/12/2025
Bromodichloromethane
Detected: 12 UG/L (ppb)
8/12/2025
Dibromochloromethane
Detected: 21 UG/L (ppb)
8/12/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 91 MG/L (ppm)
4/8/2025
Sulfate
Detected: 97 MG/L (ppm)
4/8/2025
Fluoride
Detected: 0.2 MG/L (ppm)
9/17/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 3.4 MG/L (ppm)
9/17/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Nitrate-Nitrite
Detected: 3.4 MG/L (ppm)
9/17/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Potassium
Detected: 3.9 MG/L (ppm)
4/8/2025
Magnesium
Detected: 13.7 MG/L (ppm)
4/8/2025
Calcium
Detected: 76.6 MG/L (ppm)
9/17/2025
Sodium
Detected: 69 MG/L (ppm)
4/8/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 232 MG/L (ppm)
4/8/2025
pH
Detected: 6.62 PH
9/17/2025
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
PFOA
Detected: 0.0101 µg/L (ppb)
8/6/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXA
Detected: 0.0077 µg/L (ppb)
8/6/2025
PFBA
Detected: 0.008 µg/L (ppb)
8/6/2025
PFOS
Detected: 0.0225 µg/L (ppb)
8/6/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXS
Detected: 0.0043 µg/L (ppb)
8/6/2025
PFPEA
Detected: 0.0094 µg/L (ppb)
8/6/2025
PFBS
Detected: 0.0076 µg/L (ppb)
8/6/2025
Lithium
Detected: 44.5 µg/L (ppb)
11/4/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 220 MG/L (ppm)
4/8/2025
Other
Additional substances tested that don't fit neatly into the categories above
Dichloroaceticacid
Detected: 1.6 UG/L (ppb)
2/11/2025
Monobromoaceticacid
Detected: 1.2 UG/L (ppb)
2/11/2025
Dibromoaceticacid
Detected: 1.3 UG/L (ppb)
8/12/2025
Aggressive Index
Detected: 11.2 AGGR
9/17/2025
Alkalinity, Total
Detected: 200 MG/L (ppm)
9/17/2025
TDS
Detected: 500 MG/L (ppm)
4/8/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 8.7 NG/L (ppt)
7/8/2025
Perfluoroheptanoicacid (PFHPA)
Detected: 2.5 NG/L (ppt)
7/8/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 3.4 NG/L (ppt)
7/8/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 16 NG/L (ppt)
7/8/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 9.7 NG/L (ppt)
7/8/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanoicacid (PFHXA)
Detected: 10 NG/L (ppt)
7/8/2025
Perfluorobutanoicacid (PFBA)
Detected: 8.6 NG/L (ppt)
7/8/2025
Perfluoropentanoicacid (PFPEA)
Detected: 13 NG/L (ppt)
7/8/2025
Perfluorononanoicacid (PFNA)
Detected: 2.1 NG/L (ppt)
7/8/2025
Turbidity
Detected: 0.1 NTU
4/8/2025
A measure of water cloudiness from suspended particles.
1, 4-Dioxane
Detected: 0.92 UG/L (ppb)
7/8/2025
Conductivity (at 25°C)
Detected: 780 UMHO/CM
4/8/2025
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.