Drinking water quality · 2022
· Verified
What's in So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA tap water
38 contaminants were measured in the So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA water system's 2022 annual report. Each is shown below against its federal limit.
- Reporting year
- 2022
- Contaminants measured
- 38
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
state-level CCR
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.76 NTUAverageof Levels Detected | 1 NTUMCL | Within the limit |
| AlkalinityA measure of the water's capacity to neutralize acids. | 320 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| Bicarbonate | 390 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 370 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 7.3Averageof Levels Detected | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 1500Averageof Levels Detected | None set | Detected — no federal limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 0.44 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 850 mg/LAverageof Levels Detected | None set | 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. | 59 ug/LAverageof Levels Detected | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 32 ug/LAverageof Levels Detected | None set | Within the limit |
| BromodichloromethaneA trihalomethane disinfection byproduct. | 2.3 ug/LAverageof Levels Detected | 0.06 ug/LPublic health goal | Detected — no federal limit |
| BromoformA trihalomethane disinfection byproduct. | 29 ug/LAverageof Levels Detected | 0.5 ug/LPublic health goal | Detected — no federal limit |
| ChloroformA trihalomethane formed when chlorine reacts with organic matter in water. | 1.2 ug/LAverageof Levels Detected | 0.4 ug/LPublic health goal | Detected — no federal limit |
| DibromochloromethaneA trihalomethane disinfection byproduct. | 12 ug/LAverageof Levels Detected | 0.1 ug/LPublic health goal | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Dibromoacetic acidA brominated haloacetic acid disinfection byproduct. | 24 ug/LAverageof Levels Detected | None set | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.3 mg/LAverageof Levels Detected | 4 mg/LMCL | Within the limit |
| Monobromoacetic acidA brominated haloacetic acid disinfection byproduct. | 2.7 ug/LAverageof Levels Detected | None set | Within the limit |
| Dichloroacetic acidA haloacetic acid disinfection byproduct. | 2.4 ug/LAverageof Levels Detected | None set | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.3 mg/LAverageof Levels Detected | 10 mg/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 270 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 52 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 1.3 mg/LAverageof Levels Detected | None set | Within the limit |
| Nitrate Nitrite | 0.58 mg/LAverageof Levels Detected | 10 mg/LMCL | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 4.2 pCi/LAverageof Levels Detected | 15 pCi/LMCL | Within the limit |
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.26 pCi/LAverageof Levels Detected | 5 pCi/LMCL | Within the limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 0.5 pCi/LAverageof Levels Detected | 20 pCi/LMCL | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2 ug/LAverageof Levels Detected | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.21 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. | 1.5 ug/L90th percentileAt the tap | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.13 mg/LAverageof Levels Detected | 2 mg/LMCL | Within the limit |
| BoronA naturally occurring element from rock and soil. | 0.97 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 70 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.25 ug/LAverageof Levels Detected | 0.02 ug/LPublic health goal | Detected — no federal limit |
| IronA naturally occurring metal common in groundwater. | 888 ug/LAverageof Levels Detected | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 47 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 19 ug/LAverageof Levels Detected | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 86 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 0.011 mg/LAverageof Levels Detected | None set | Detected — no federal limit |
Source: So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA's 2022 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA's water
+Is So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA tap water safe to drink in 2022?
Every one of the 38 contaminants measured in So. Cal. Edison Co.-santa Catalina — Avalon, 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 So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA tap water?
38 contaminants were measured in So. Cal. Edison Co.-santa Catalina — Avalon, Ca, CA's 2022 Consumer Confidence Report, spanning metals, physical & aggregate, and inorganic chemicals. 14 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 So. Cal. Edison Co.-santa Catalina — Avalon, 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 So. Cal. Edison Co.-santa Catalina — Avalon, 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.
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