Drinking water quality · 2021
· Verified
What's in Oceano Comm Services Dist. — Oceano, Ca, CA tap water
19 contaminants were measured in the Oceano Comm Services Dist. — Oceano, Ca, CA water system's 2021 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2021
- Contaminants measured
- 19
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Gross Alpha
- Service area
- CA
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0–2017 pCi/LRangeWell Water | 15 pCi/LMCL | At or above the limit |
+By source (3)— Well Water, Lopez Surface Water, CCWA State Water
| |||
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.038 pCi/LRangeWell Water | None set | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | Not detected pCi/LRangeCCWA State Water | None set | None detected |
+By source (2)— CCWA State Water, Lopez Surface Water
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 5–8.3 pCi/LRangeWell Water | 20 pCi/LMCL | Detected — no federal 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. | 43–51 ug/LRangeCCWA State Water | None set | Within the limit |
+By source (3)— CCWA State Water, Well Water, Lopez Surface Water
| |||
| Chlorite | 0.28–0.568 mg/LRangeLopez Surface Water | 1 mg/LMCL | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 15–22.2 ug/LRangeLopez Surface Water | None set | Within the limit |
+By source (3)— Lopez Surface Water, Well Water, CCWA State Water
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 3.4–5.3 ug/LRangeLopez Surface Water | None set | Within the limit |
+By source (3)— Lopez Surface Water, Well Water, CCWA State Water
| |||
| CopperA metal that enters water from corroding household plumbing. | 0.52 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.034 mg/LRangeLopez Surface Water | 2 mg/LMCL | Within the limit |
+By source (3)— Lopez Surface Water, CCWA State Water, Well Water
| |||
| Cadmium | Not detected ug/LRangeWell Water | None set | None detected |
+By source (2)— Well Water, CCWA State Water
| |||
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected mg/L90th percentileAt the tap | None set | None detected |
+By source (2)— Well Water, No. of Schools tested in 2022
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 0–0.091 mg/LRangeCCWA State Water | None set | Detected — no federal limit |
+By source (3)— CCWA State Water, Lopez Surface Water, Well Water
| |||
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.067 ug/LReported levelCCWA State Water | 0.02 ug/LPublic health goal | Detected — no federal limit |
| Vanadium | 6.8Reported levelWell Water | 50NL | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.15 NTUReported levelCCWA State Water | None set | Within the limit |
+By source (2)— CCWA State Water, Lopez WTP
| |||
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0–390 ug/LRangeLopez Surface Water | 4000 ug/LMCL | Within the limit |
+By source (2)— Lopez Surface Water, CCWA State Water
| |||
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.37 mg/LRangeLopez Surface Water | 4 mg/LMCL | Within the limit |
+By source (3)— Lopez Surface Water, Well Water, CCWA State Water
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | Not detectedRangeLopez Surface Water | None set | None detected |
+By source (3)— Lopez Surface Water, Well Water, CCWA State Water
| |||
People also ask about Oceano Comm Services Dist. — Oceano, Ca, CA's water
+Is Oceano Comm Services Dist. — Oceano, Ca, CA tap water safe to drink in 2021?
The 2021 Consumer Confidence Report for the Oceano Comm Services Dist. — Oceano, Ca, CA water utility lists 1 contaminant at or above the federal limit: Gross Alpha. 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 Oceano Comm Services Dist. — Oceano, Ca, CA tap water?
19 contaminants were measured in Oceano Comm Services Dist. — Oceano, Ca, CA's 2021 Consumer Confidence Report, spanning metals, radionuclides, and disinfection byproducts. 9 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 Oceano Comm Services Dist. — Oceano, Ca, CA tap water?
One contaminant in Oceano Comm Services Dist. — Oceano, Ca, CA's 2021 report sits at or above the federal limit: Gross Alpha (134.5× 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 Oceano Comm Services Dist. — Oceano, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2021 report is Gross Alpha, at 134.5× the federal threshold. It belongs to the radionuclides family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Oceano Comm Services Dist. — Oceano, Ca, CA's 2021 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 Oceano Comm Services Dist. — Oceano, 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 2021 report; a new report will replace it once the utility publishes its next annual update.