Drinking water quality · 2022
· Verified
What's in Atascadero State Hospital — Atascadero, Ca, CA tap water
23 contaminants were measured in the Atascadero State Hospital — Atascadero, 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
- 23
- Over federal limit
- 2
- Approaching the limit
- 0
- Worst contaminant
- Copper
- Service area
- CA
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 1.7 mg/L90th percentileAt the tap | 1.3 mg/LAction level | At or above the limit |
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | 0–15 ug/LRangeSystem-wide | None set | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 0–5 ug/LRangeSystem-wide | None set | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | Not detected ug/LReported levelSystem-wide | None set | None detected |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected ug/L90th percentileAt the tap | None set | Within the limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 99Reported levelSystem-wide | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 39Reported levelSystem-wide | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 1Reported levelSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 1 NTUReported levelSystem-wide | None set | At or above the limit |
| AlkalinityA measure of the water's capacity to neutralize acids. | 260Reported levelSystem-wide | None set | Detected — no federal limit |
| Bicarbonate | 320Reported levelSystem-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. | 1.8–4.8 mg/LRangeSystem-wide | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.2 mg/LReported levelSystem-wide | 4 mg/LMCL | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 7.13 pCi/LReported levelSystem-wide | 15 pCi/LMCL | Within the limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 3.05 pCi/LReported levelSystem-wide | 20 pCi/LMCL | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.28–0.93 mg/LRangeSystem-wide | None set | 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. | 16 ug/LReported levelSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 8 ug/LReported levelSystem-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 | 0MCLG | None detected |
+By source (2)— No. of Detections, Total No. of Detections
| |||
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 3.6–5.5RangeSystem-wide | 500NL | Detected — no federal limit |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 4.4–34RangeSystem-wide | 3NL | Detected — no federal limit |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | 1.8AverageSystem-wide | None set | Detected — no federal limit |
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 18.65AverageSystem-wide | 6.5MCL | Detected — no federal limit |
People also ask about Atascadero State Hospital — Atascadero, Ca, CA's water
+Is Atascadero State Hospital — Atascadero, Ca, CA tap water safe to drink in 2022?
The 2022 Consumer Confidence Report for the Atascadero State Hospital — Atascadero, Ca, CA water utility lists 2 contaminants at or above the federal limit: Copper and Turbidity. 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 Atascadero State Hospital — Atascadero, Ca, CA tap water?
23 contaminants were measured in Atascadero State Hospital — Atascadero, Ca, CA's 2022 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and physical & aggregate. 9 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 Atascadero State Hospital — Atascadero, Ca, CA tap water?
2 contaminants in Atascadero State Hospital — Atascadero, Ca, CA's 2022 report sit at or above the federal limit: Copper (1.3× the limit); Turbidity (1.0× 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 Atascadero State Hospital — Atascadero, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2022 report is Copper, at 1.3× the federal threshold. It belongs to the metals family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Atascadero State Hospital — Atascadero, 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 Atascadero State Hospital — Atascadero, 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.