Drinking water quality · 2023
· Verified
What's in Nps-ash Mountain — Three Rivers, Ca, CA tap water
12 contaminants were measured in the Nps-ash Mountain — Three Rivers, 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
- 12
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Turbidity
- Service area
- CA
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. | 185 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| Bicarbonate | 225 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | 0–0.6 mg/LRangeSystem-wide | 1 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0–0.6 mg/LRangeSystem-wide | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.1–0.2 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2–6 ug/LRangeSystem-wide | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0 mg/L90th percentileAt the tap | 1.3 mg/LAction level | None detected |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 ug/L90th percentileAt the tap | 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. | 10 ug/LReported levelSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 0 ug/LReported levelSystem-wide | None set | None detected |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 2024Reported levelTotal No. of Detections | None set | Detected — no federal limit |
+By source (2)— Total No. of Detections, No. of Detections
| |||
People also ask about Nps-ash Mountain — Three Rivers, Ca, CA's water
+Is Nps-ash Mountain — Three Rivers, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the Nps-ash Mountain — Three Rivers, Ca, CA water utility lists 1 contaminant at or above the federal limit: 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 Nps-ash Mountain — Three Rivers, Ca, CA tap water?
12 contaminants were measured in Nps-ash Mountain — Three Rivers, Ca, CA's 2023 Consumer Confidence Report, spanning inorganic chemicals, metals, and physical & aggregate. 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 Nps-ash Mountain — Three Rivers, Ca, CA tap water?
One contaminant in Nps-ash Mountain — Three Rivers, Ca, CA's 2023 report sits at or above the federal 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 Nps-ash Mountain — Three Rivers, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is Turbidity, at 1.0× the federal threshold. It belongs to the physical & aggregate family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Nps-ash Mountain — Three Rivers, 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 Nps-ash Mountain — Three Rivers, 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.