Drinking water quality · 2022
· Verified
What's in Orchard Dale Water District — Whittier, Ca, CA tap water
24 contaminants were measured in the Orchard Dale Water District — Whittier, Ca, CA water system's 2022 annual report. Each is shown below against its federal limit — 2 sit at or above that limit.
- Reporting year
- 2022
- Contaminants measured
- 24
- Over federal limit
- 2
- Approaching the limit
- 0
- Worst contaminant
- PFOS
- Service area
- CA
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 17–32 ng/LRangeSystem-wide | None set | At or above the limit |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 8.2–14 ng/LRangeSystem-wide | None set | At or above the limit |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 3.5–5.4 ng/LRangeSystem-wide | None set | Within the limit |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | 2.1–2.8 ng/LRangeSystem-wide | None set | Within the limit |
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 5.6–8.6 ng/LRangeSystem-wide | None set | Detected — no federal limit |
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | 0–2.5 ng/LRangeSystem-wide | None set | Detected — no federal limit |
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 3.3–7.6 ng/LRangeSystem-wide | None set | Detected — no federal limit |
| Perfluoropentanoic acidPerfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' | 4.2–9.9 ng/LRangeSystem-wide | None set | Detected — no federal limit |
| PFBAPerfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' | 7.6–11 ng/LRangeSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 3.5 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.2 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 5 ug/L90th percentileAt the tap | None set | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 3.2 ug/LAverageSystem-wide | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.34 mg/L90th percentileAt the tap | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0 mg/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 0.011 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 0.97 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 11.3 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 2.2 ug/LAverageSystem-wide | None set | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Highest single sampleNo. of Detections | None set | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0Highest single sampleNo. of Detections | None set | None detected |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 2.6AverageSystem-wide | 0.019MCLG | Detected — no federal limit |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 1.5AverageSystem-wide | 15MCL | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 2.2AverageSystem-wide | 20MCL | Detected — no federal limit |
People also ask about Orchard Dale Water District — Whittier, Ca, CA's water
+Is Orchard Dale Water District — Whittier, Ca, CA tap water safe to drink in 2022?
The 2022 Consumer Confidence Report for the Orchard Dale Water District — Whittier, 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 Orchard Dale Water District — Whittier, Ca, CA tap water?
24 contaminants were measured in Orchard Dale Water District — Whittier, Ca, CA's 2022 Consumer Confidence Report, spanning pfas ("forever chemicals"), metals, and radionuclides. 7 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 Orchard Dale Water District — Whittier, Ca, CA tap water?
2 contaminants in Orchard Dale Water District — Whittier, Ca, CA's 2022 report sit at or above the federal limit: PFOS (8.0× the limit); PFOA (3.5× 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 Orchard Dale Water District — Whittier, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2022 report is PFOS, at 8.0× 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 Orchard Dale Water District — Whittier, Ca, CA's 2022 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 Orchard Dale Water District — Whittier, 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 2022 report; a new report will replace it once the utility publishes its next annual update.