Drinking water quality · 2023
· Verified
What's in La Habra Heights Cwd — La Habra Heights, Ca, CA tap water
26 contaminants were measured in the La Habra Heights Cwd — La Habra Heights, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit — 2 sit at or above that limit.
- Reporting year
- 2023
- Contaminants measured
- 26
- Over federal limit
- 2
- Approaching the limit
- 0
- Worst contaminant
- PFOS
- Service area
- CA
5.6× the limit
state-level CCR
At or above the federal limit
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 22.58 ng/LAverageGroundwater | None set | At or above the limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 11.02 ng/LAverageGroundwater | None set | At or above the limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 4.3 ng/LAverageGroundwater | None set | Within the limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | 1.83 ng/LAverageGroundwater | None set | Within the limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 7.63 ng/LAverageGroundwater | None set | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | 2.15 ng/LAverageGroundwater | None set | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 7.37 ng/LAverageGroundwater | None set | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Perfluoropentanoic acidPerfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' | 9.32 ng/LAverageGroundwater | None set | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| PFBAPerfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' | 9.6 ng/LAverageGroundwater | None set | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 54.3 ug/LAverageDistribution System | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 2.6 ug/LAverageDistribution System | None set | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 1.5 mg/LAverageDistribution System | 4 mg/LMCL | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 3.7 mg/LAverageGroundwater | 10 mg/LMCL | Within the limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.7 mg/LAverageMWD's Surface Water | 4 mg/LMCL | Within the limit |
+By source (2)— MWD's Surface Water, Groundwater
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 3.2 ug/LAverageGroundwater | None set | Within the limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| CopperA metal that enters water from corroding household plumbing. | 0.4 mg/L90th percentileDISTRIBUTION SYSTEM 90%ile | None set | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1.7 ug/L90th percentileDISTRIBUTION SYSTEM 90%ile | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.12 mg/LAverageMWD's Surface Water | 2 mg/LMCL | Within the limit |
+By source (2)— MWD's Surface Water, Groundwater
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 46.5 mg/LAverageMWD's Surface Water | None set | Detected — no federal limit |
+By source (2)— MWD's Surface Water, Groundwater
| |||
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.7 ug/LAverageGroundwater | None set | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0AverageDistribution System Average # Positive | None set | None detected |
+By source (2)— Distribution System Average # Positive, Distribution System Range # Of Positive
| |||
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0AverageDistribution System Average # Positive | 0MCLG | Detected — no federal limit |
+By source (2)— Distribution System Range # Of Positive, Distribution System Average # Positive
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 1.9AverageGroundwater | 5MCL | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 1.9AverageGroundwater | 15MCL | Detected — no federal limit |
+By source (2)— MWD's Surface Water, Groundwater
| |||
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 2AverageMWD's Surface Water | None set | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 3.1AverageGroundwater | 20MCL | Detected — no federal limit |
+By source (2)— Groundwater, MWD's Surface Water
| |||
Source: La Habra Heights Cwd — La Habra Heights, Ca, CA's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about La Habra Heights Cwd — La Habra Heights, Ca, CA's water
+Is La Habra Heights Cwd — La Habra Heights, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the La Habra Heights Cwd — La Habra Heights, Ca, CA water utility lists 2 contaminants at or above the federal limit: PFOS and PFOA. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in La Habra Heights Cwd — La Habra Heights, Ca, CA tap water?
26 contaminants were measured in La Habra Heights Cwd — La Habra Heights, Ca, CA's 2023 Consumer Confidence Report, spanning pfas ("forever chemicals"), metals, and radionuclides. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in La Habra Heights Cwd — La Habra Heights, Ca, CA tap water?
2 contaminants in La Habra Heights Cwd — La Habra Heights, Ca, CA's 2023 report sit at or above the federal limit: PFOS (5.6× the limit); PFOA (2.8× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in La Habra Heights Cwd — La Habra Heights, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is PFOS, at 5.6× the federal threshold. It belongs to the pfas ("forever chemicals") family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from La Habra Heights Cwd — La Habra Heights, Ca, CA's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is La Habra Heights Cwd — La Habra Heights, Ca, CA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2023 report; a new report will replace it once the utility publishes its next annual update.
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