Drinking water quality · 2022
· Verified
What's in Llano Mutual Water Company — Llano, Ca, CA tap water
18 contaminants were measured in the Llano Mutual Water Company — Llano, Ca, CA water system's 2022 annual report. Each is shown below against its federal limit.
- Reporting year
- 2022
- Contaminants measured
- 18
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Treatment technique violationHealth-based1 violation on record · most recent Oct 20241 open
- Reporting1 violation on record · most recent Oct 20241 open
- Monitoring1 violation on recordresolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.16 mg/L90th percentileAt the tap | 1.3 mg/LAction level | 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 | Within the limit |
+By source (2)— No. of Samples Collected, No. of Schools Requesting Lead Sampling
| |||
| CalciumA naturally occurring mineral that contributes to water hardness. | 65Reported levelSystem-wide | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 18–19RangeSystem-wide | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 4.6–4.8RangeSystem-wide | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | Not detectedReported levelSystem-wide | None set | None detected |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Asbestos | Not detectedReported levelSystem-wide | None set | None detected |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.33–0.34RangeSystem-wide | 2MCL | Detected — no federal limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.69–0.96RangeSystem-wide | 10MCL | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 50–57RangeSystem-wide | None set | Detected — no federal 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 |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 1Highest single sampleNo. of Detections | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Nitrate Nitrite | Not detectedReported levelSystem-wide | 10MCL | None detected |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ColorA measure of visible tint in the water. | Not detectedReported levelSystem-wide | None set | None detected |
| AlkalinityA measure of the water's capacity to neutralize acids. | 210Reported levelSystem-wide | None set | Detected — no federal limit |
| Bicarbonate | 260–260RangeSystem-wide | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 7.7Reported levelSystem-wide | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.6–1.8RangeSystem-wide | 20MCL | Detected — no federal limit |
People also ask about Llano Mutual Water Company — Llano, Ca, CA's water
+Is Llano Mutual Water Company — Llano, Ca, CA tap water safe to drink in 2022?
Every one of the 18 contaminants measured in Llano Mutual Water Company — Llano, Ca, CA's 2022 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 Llano Mutual Water Company — Llano, Ca, CA tap water?
18 contaminants were measured in Llano Mutual Water Company — Llano, Ca, CA's 2022 Consumer Confidence Report, spanning metals, inorganic chemicals, and physical & aggregate. 6 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Llano Mutual Water Company — Llano, 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 Llano Mutual Water Company — Llano, 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.