Drinking water quality · 2023
· Verified
What's in La Puente Valley Cwd — La Puente, Ca, CA tap water
28 contaminants were measured in the La Puente Valley Cwd — La Puente, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 28
- Over federal limit
- 0
- Approaching the limit
- 0
- 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.
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 7.8 mg/LAverageTreated Water | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.5 mg/LAverageTreated Water | 4 mg/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 36 mg/LAverageTreated Water | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 56 mg/LAverageTreated Water | 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. | 4.8 pCi/LAverageTreated Water | 15 pCi/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4.2AverageTreated Water | None set | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1.9 pCi/LAverageTreated Water | 20 pCi/LMCL | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 1.19 mg/LAverageSystem-wide | 4 mg/LMCL | Within the 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. | 11 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 1.45 ug/LAverageSystem-wide | None set | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 1.12 ug/LAverageTreated Water | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.1 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/LAverageTreated Water | 2 mg/LMCL | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 mg/L90th percentileAt the tap | 0.015 mg/LAction level | None detected |
| CalciumA naturally occurring mineral that contributes to water hardness. | 64.6 mg/LAverageTreated Water | None set | Detected — no federal limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 3.7 ug/LAverageTreated Water | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 15.1 mg/LAverageTreated Water | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 2.9 mg/LAverageTreated Water | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 26 mg/LAverageTreated Water | None set | Detected — no federal limit |
| Strontium | 0.031 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.08 NTUAverageSystem-wide | None set | Within the limit |
| OdorA measure of detectable smell in the water. | Not detectedAverageSystem-wide | None set | None detected |
| AlkalinityA measure of the water's capacity to neutralize acids. | 172 mg/LAverageTreated Water | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 224 mg/LAverageTreated Water | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 7.8AverageTreated Water | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 571AverageTreated Water | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 355 mg/LAverageTreated Water | None set | Detected — no federal limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0Reported levelNumber of Detections | 0MCLG | None detected |
People also ask about La Puente Valley Cwd — La Puente, Ca, CA's water
+Is La Puente Valley Cwd — La Puente, Ca, CA tap water safe to drink in 2023?
Every one of the 28 contaminants measured in La Puente Valley Cwd — La Puente, Ca, CA's 2023 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 La Puente Valley Cwd — La Puente, Ca, CA tap water?
28 contaminants were measured in La Puente Valley Cwd — La Puente, Ca, CA's 2023 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 La Puente Valley Cwd — La Puente, 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 La Puente Valley Cwd — La Puente, 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.