Drinking water quality · 2023
· Verified
What's in Valley of the Moon Water District — El Verano, Ca, CA tap water
18 contaminants were measured in the Valley of the Moon Water District — El Verano, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2023
- Contaminants measured
- 18
- 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. | 0–1 ug/LRangeSonoma County Water Agency | None set | At or above the limit |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 0–1.3 ng/LRangeSonoma County Water Agency | None set | Within the limit |
+By source (2)— Sonoma County Water Agency, Valley of the Moon Water District
| |||
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 0–0.0032 ug/LRangeValley of the Moon Water District | None set | Within the limit |
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 0–1 ug/LRangeSonoma County Water Agency | None set | Detected — no federal limit |
+By source (2)— Sonoma County Water Agency, Valley of the Moon Water District
| |||
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 0–0.0033 ug/LRangeValley of the Moon Water District | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 1.87–26.09 ug/LRangeSonoma County Water Agency | None set | Within the limit |
+By source (2)— Sonoma County Water Agency, Valley of the Moon Water District
| |||
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 5–28.8 ug/LRangeSonoma County Water Agency | None set | Within the limit |
+By source (2)— Sonoma County Water Agency, Valley of the Moon Water District
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0–4 ug/LRangeValley of the Moon Water District | None set | Within the limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
| CopperA metal that enters water from corroding household plumbing. | 0.19 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 9.2–32 mg/LRangeValley of the Moon Water District | None set | Detected — no federal limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
| LithiumA naturally occurring element found in some groundwater. | 15–32 ug/LRangeValley of the Moon Water District | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 4.9–20 mg/LRangeValley of the Moon Water District | None set | Detected — no federal limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
| SodiumA naturally occurring salt component. | 14–26 mg/LRangeValley of the Moon Water District | None set | Detected — no federal limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.23–3.9 mg/LRangeValley of the Moon Water District | 10 mg/LMCL | Within the limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.11–0.25 mg/LRangeValley of the Moon Water District | 4 mg/LMCL | Within the limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0–1.81 pCi/LRangeValley of the Moon Water District | 15 pCi/LMCL | Within the limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HardnessA measure of dissolved calcium and magnesium minerals. | 43–160 mg/LRangeValley of the Moon Water District | None set | Detected — no federal limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
| pHA measure of how acidic or basic the water is. | 6.9–7.5RangeValley of the Moon Water District | None set | Detected — no federal limit |
+By source (2)— Valley of the Moon Water District, Sonoma County Water Agency
| |||
People also ask about Valley of the Moon Water District — El Verano, Ca, CA's water
+Is Valley of the Moon Water District — El Verano, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the Valley of the Moon Water District — El Verano, 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 Valley of the Moon Water District — El Verano, Ca, CA tap water?
18 contaminants were measured in Valley of the Moon Water District — El Verano, Ca, CA's 2023 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and disinfection byproducts. 4 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 Valley of the Moon Water District — El Verano, Ca, CA tap water?
One contaminant in Valley of the Moon Water District — El Verano, Ca, CA's 2023 report sits at or above the federal limit: PFOS (250.0× 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 Valley of the Moon Water District — El Verano, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is PFOS, at 250.0× 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 Valley of the Moon Water District — El Verano, 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 Valley of the Moon Water District — El Verano, 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.