Drinking water quality · 2020
· Verified
What's in Lincoln Avenue Water Co. — Altadena, Ca, CA tap water
28 contaminants were measured in the Lincoln Avenue Water Co. — Altadena, Ca, CA water system's 2020 annual report. Each is shown below against its federal limit.
- Reporting year
- 2020
- Contaminants measured
- 28
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 29 ug/LAverageAverage Amount | None set | Within the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 30 ug/LAverageAverage Amount | None set | Within the limit |
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | Not detected ug/LAverageAverage Amount | None set | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 7.1 pCi/LAverageAverage Amount | 15 pCi/LMCL | Within the limit |
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | Not detected pCi/LAverageAverage Amount | 5 pCi/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 5 pCi/LAverageAverage Amount | None set | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 8.1 pCi/LAverageAverage Amount | 20 pCi/LMCL | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 4.3 mg/LAverageAverage Amount | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 1.7 mg/LAverageAverage Amount | 4 mg/LMCL | Within the limit |
| BromideA naturally occurring salt found in source water. | 13 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| ChlorideA naturally occurring salt compound. | 96 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 220 mg/LAverageAverage Amount | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 3.5 ug/LAverageAverage Amount | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.26 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.11 mg/LAverageAverage Amount | 2 mg/LMCL | 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 | None detected |
| AluminumA common element sometimes used as a treatment coagulant. | 150 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| IronA naturally occurring metal common in groundwater. | Not detected ug/LAverageAverage Amount | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | Not detected ug/LAverageAverage Amount | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 98 mg/LAverageAverage Amount | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 1.3 mg/LAverageAverage Amount | 4 mg/LMCL | Within the limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.15 NTUAverageAverage Amount | 1 NTUMCL | Within the limit |
+By source (2)— Turbidity Measurements, Metropolitan Water District Weymouth Filtration Plant
| |||
| ColorA measure of visible tint in the water. | 7.5AverageAverage Amount | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 270 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| OdorA measure of detectable smell in the water. | 1AverageAverage Amount | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 960AverageAverage Amount | None set | Detected — no federal limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1700 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 600 mg/LAverageAverage Amount | None set | Detected — no federal limit |
People also ask about Lincoln Avenue Water Co. — Altadena, Ca, CA's water
+Is Lincoln Avenue Water Co. — Altadena, Ca, CA tap water safe to drink in 2020?
Every one of the 28 contaminants measured in Lincoln Avenue Water Co. — Altadena, Ca, CA's 2020 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 Lincoln Avenue Water Co. — Altadena, Ca, CA tap water?
28 contaminants were measured in Lincoln Avenue Water Co. — Altadena, Ca, CA's 2020 Consumer Confidence Report, spanning metals, physical & aggregate, and inorganic chemicals. 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.
+Where does the data on this page come from?
Every value is transcribed from Lincoln Avenue Water Co. — Altadena, Ca, CA's 2020 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 Lincoln Avenue Water Co. — Altadena, 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 2020 report; a new report will replace it once the utility publishes its next annual update.