Drinking water quality · 2023
· Verified
What's in North Gualala Water Company — Gualala, Ca, CA tap water
23 contaminants were measured in the North Gualala Water Company — Gualala, 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
- 23
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Turbidity
- 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-based2 violations on record · most recent Aug 2009resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 1 NTUReported levelAlternative Technology | None set | At or above the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.83 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | Not detected ug/LAverageSystem-wide | None set | None detected |
| Antimony | Not detected ug/LAverageSystem-wide | None set | None detected |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | Not detected ug/LAverageSystem-wide | None set | None detected |
| BariumA metal from erosion of natural deposits and industrial discharge. | Not detected ug/LAverageSystem-wide | None set | None detected |
| Beryllium | Not detected ug/LAverageSystem-wide | None set | None detected |
| Cadmium | Not detected ug/LAverageSystem-wide | None set | None detected |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | Not detected ug/LAverageSystem-wide | None set | 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 |
| MercuryA toxic metal from erosion of natural deposits and industrial runoff. | Not detected ug/LAverageSystem-wide | None set | None detected |
| NickelA metal from natural deposits and industrial discharge. | Not detected ug/LAverageSystem-wide | None set | None detected |
| SeleniumA trace element from natural deposits and industrial discharge. | Not detected ug/LAverageSystem-wide | None set | None detected |
| Thallium | Not detected ug/LAverageSystem-wide | None set | None detected |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 1.29 pCi/LAverageSystem-wide | 15 pCi/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | Not detected ug/LAverageSystem-wide | None set | None detected |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Asbestos | Not detected MFLAverageSystem-wide | 7 MFLMCL | None detected |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | Not detected mg/LAverageSystem-wide | 4 mg/LMCL | None detected |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | Not detected mg/LAverageSystem-wide | 10 mg/LMCL | None detected |
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | Not detected mg/LAverageSystem-wide | 1 mg/LMCL | None detected |
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 Detection | None set | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0Highest single sampleNo. of Detection | 0MCLG | None detected |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium | Not detected ug/LAverageSystem-wide | None set | None detected |
People also ask about North Gualala Water Company — Gualala, Ca, CA's water
+Is North Gualala Water Company — Gualala, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the North Gualala Water Company — Gualala, 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 North Gualala Water Company — Gualala, Ca, CA tap water?
23 contaminants were measured in North Gualala Water Company — Gualala, Ca, CA's 2023 Consumer Confidence Report, spanning metals, inorganic chemicals, and microbial. 7 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 North Gualala Water Company — Gualala, Ca, CA tap water?
One contaminant in North Gualala Water Company — Gualala, 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 North Gualala Water Company — Gualala, 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 North Gualala Water Company — Gualala, 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 North Gualala Water Company — Gualala, 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.