Drinking water quality · 2022
· Verified
What's in Lincoln Avenue Water Co. — Altadena, Ca, CA tap water
24 contaminants were measured in the Lincoln Avenue Water Co. — Altadena, Ca, CA water system's 2022 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2022
- Contaminants measured
- 24
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Turbidity
- Service area
- CA
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 2.3 NTUAverageAverage Amount | 1 NTUMCL | At or above the limit |
+By source (2)— Turbidity Measurements, Metropolitan Water District Weymouth Filtration Plant
| |||
| ColorA measure of visible tint in the water. | 10AverageAverage Amount | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 240 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| OdorA measure of detectable smell in the water. | 2AverageAverage Amount | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 590AverageAverage Amount | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 370 mg/LAverageAverage Amount | None set | Detected — no federal 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 |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | Not detected 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 |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 34 ug/LAverageAverage Amount | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 20 ug/LAverageAverage Amount | None set | Within the limit |
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 2.4 ug/LAverageAverage Amount | None set | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 4.2 mg/LAverageAverage Amount | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 1.4 mg/LAverageAverage Amount | 4 mg/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 44 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 62 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. | 3.1 ug/LAverageAverage Amount | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.28 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 | None detected |
| AluminumA common element sometimes used as a treatment coagulant. | 120 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| IronA naturally occurring metal common in groundwater. | 98 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 8.4 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 47 mg/LAverageAverage Amount | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 1.2 mg/LAverageAverage Amount | 4 mg/LMCL | Within the 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 2022?
The 2022 Consumer Confidence Report for the Lincoln Avenue Water Co. — Altadena, 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 Lincoln Avenue Water Co. — Altadena, Ca, CA tap water?
24 contaminants were measured in Lincoln Avenue Water Co. — Altadena, Ca, CA's 2022 Consumer Confidence Report, spanning metals, physical & aggregate, and inorganic chemicals. 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 Lincoln Avenue Water Co. — Altadena, Ca, CA tap water?
One contaminant in Lincoln Avenue Water Co. — Altadena, Ca, CA's 2022 report sits at or above the federal limit: Turbidity (2.3× 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 Lincoln Avenue Water Co. — Altadena, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2022 report is Turbidity, at 2.3× 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 Lincoln Avenue Water Co. — Altadena, 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 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 2022 report; a new report will replace it once the utility publishes its next annual update.