Drinking water quality · 2021
· Verified
What's in Orchard Dale Water District — Whittier, Ca, CA tap water
21 contaminants were measured in the Orchard Dale Water District — Whittier, Ca, CA water system's 2021 annual report. Each is shown below against its federal limit — 2 sit at or above that limit.
- Reporting year
- 2021
- Contaminants measured
- 21
- 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. | 29.2 ng/LAverageGroundwater | None set | At or above the limit |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 11.86 ng/LAverageSystem-wide | None set | At or above the limit |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 5.53 ng/LAverageSystem-wide | None set | Within the limit |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | 2.66 ng/LAverageGroundwater | None set | Within the limit |
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 7.29 ng/LAverageGroundwater | None set | Detected — no federal limit |
| Perfluorodecanoic acid (PFDA)Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.' | 0.4 ng/LAverageSystem-wide | None set | Detected — no federal limit |
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | 1.56AverageSystem-wide | None set | Detected — no federal limit |
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 4.88AverageSystem-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/LAverageGROUNDWATER AVERAGE (a) | 10 mg/LMCL | Within the limit |
+By source (2)— Groundwater, GROUNDWATER AVERAGE (a)
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.2 mg/LAverageGROUNDWATER AVERAGE (a) | 4 mg/LMCL | Within the limit |
+By source (2)— Groundwater, GROUNDWATER AVERAGE (a)
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 3.2 ug/LAverageGROUNDWATER AVERAGE (a) | None set | Within the limit |
+By source (2)— Groundwater, GROUNDWATER AVERAGE (a)
| |||
| CopperA metal that enters water from corroding household plumbing. | 0.33 mg/L90th percentileDISTRIBUTION SYSTEM 90%ile | None set | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 0.01 mg/LAverageGROUNDWATER AVERAGE (a) | None set | Detected — no federal limit |
+By source (2)— Groundwater, GROUNDWATER AVERAGE (a)
| |||
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 0.9 mg/LAverageDistribution System | 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. | 11.9 ug/LAverageDistribution System | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 2.1 ug/LAverageDistribution System | 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 sampleDISTRIBUTION SYSTEM Highest No. of Detections | None set | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0Highest single sampleDISTRIBUTION SYSTEM Highest No. of Detections | None set | None detected |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | Not detectedRangeGroundwater | 0.019MCLG | None detected |
+By source (2)— Groundwater, GROUNDWATER AVERAGE (a)
| |||
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | Not detectedAverageGROUNDWATER AVERAGE (a) | 15MCL | None detected |
+By source (2)— GROUNDWATER AVERAGE (a), Groundwater
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.7AverageGROUNDWATER AVERAGE (a) | 20MCL | Detected — no federal limit |
+By source (2)— Groundwater, GROUNDWATER AVERAGE (a)
| |||
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 2021?
The 2021 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?
21 contaminants were measured in Orchard Dale Water District — Whittier, Ca, CA's 2021 Consumer Confidence Report, spanning pfas ("forever chemicals"), metals, and radionuclides. 6 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 2021 report sit at or above the federal limit: PFOS (7.3× the limit); PFOA (3.0× 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 2021 report is PFOS, at 7.3× 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 2021 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 2021 report; a new report will replace it once the utility publishes its next annual update.