Drinking water quality · 2023
· Verified
What's in Alpine Water Users Association — Twin Peaks, Ca, CA tap water
9 contaminants were measured in the Alpine Water Users Association — Twin Peaks, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 9
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- CA
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 1.2 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Approaching the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 3.7 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. | 21.6 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 1.7 ug/LAverageSystem-wide | None set | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 3.1 pCi/LAverageSystem-wide | 15 pCi/LMCL | Within the limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 3.4 pCi/LAverageSystem-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. | 0.74 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.59 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 4Reported levelSample Dates | None set | Detected — no federal limit |
+By source (2)— Total No. of Detections, No. of Detections
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People also ask about Alpine Water Users Association — Twin Peaks, Ca, CA's water
+Is Alpine Water Users Association — Twin Peaks, Ca, CA tap water safe to drink in 2023?
Every one of the 9 contaminants measured in Alpine Water Users Association — Twin Peaks, Ca, CA's 2023 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Alpine Water Users Association — Twin Peaks, Ca, CA tap water?
9 contaminants were measured in Alpine Water Users Association — Twin Peaks, Ca, CA's 2023 Consumer Confidence Report, spanning disinfection byproducts, metals, and radionuclides. 5 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in Alpine Water Users Association — Twin Peaks, Ca, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Copper. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Alpine Water Users Association — Twin Peaks, 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 Alpine Water Users Association — Twin Peaks, 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.