Drinking water quality · 2020
· Verified
What's in Gswc - Hollydale — Anaheim, Ca, CA tap water
12 contaminants were measured in the Gswc - Hollydale — Anaheim, Ca, CA water system's 2020 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2020
- Contaminants measured
- 12
- Over federal limit
- 1
- 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. | 16 ng/LAverageSystem-wide | 6.5 ng/LNL | At or above the limit |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | Not detected ng/LAverageSystem-wide | None set | Within the limit |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | Not detected ng/LAverageSystem-wide | 5.1 ng/LNL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 1.2 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.29 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.18 mg/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | Not detected ug/LAverageSystem-wide | None set | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected ug/L90th percentileAt the tap | None set | None detected |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.7 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.8 mg/LAverageSystem-wide | 10 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. | 6.4 ug/LAverageSystem-wide | None set | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.4 pCi/LAverageSystem-wide | 20 pCi/LMCL | Detected — no federal limit |
People also ask about Gswc - Hollydale — Anaheim, Ca, CA's water
+Is Gswc - Hollydale — Anaheim, Ca, CA tap water safe to drink in 2020?
The 2020 Consumer Confidence Report for the Gswc - Hollydale — Anaheim, Ca, CA water utility lists 1 contaminant at or above the federal limit: PFOS. 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 Gswc - Hollydale — Anaheim, Ca, CA tap water?
12 contaminants were measured in Gswc - Hollydale — Anaheim, Ca, CA's 2020 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and inorganic chemicals. 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 Gswc - Hollydale — Anaheim, Ca, CA tap water?
One contaminant in Gswc - Hollydale — Anaheim, Ca, CA's 2020 report sits at or above the federal limit: PFOS (4.0× 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 Gswc - Hollydale — Anaheim, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2020 report is PFOS, at 4.0× 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 Gswc - Hollydale — Anaheim, Ca, CA's 2020 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 Gswc - Hollydale — Anaheim, 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 2020 report; a new report will replace it once the utility publishes its next annual update.