Drinking water quality · 2020
· Verified
What's in La Puente Valley Cwd, CA tap water
17 contaminants were measured in the La Puente Valley Cwd, CA water system's 2020 annual report. Each is shown below against its federal limit.
- Reporting year
- 2020
- Contaminants measured
- 17
- 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/LAverageTreatment plant | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.34 mg/LAverageTreatment plant | 4 mg/LMCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 1.12 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 2.38 pCi/LAverageTreatment plant | 15 pCi/LMCL | Within the limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 2.1 pCi/LAverageTreatment plant | 20 pCi/LMCL | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0023 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 1.32 ug/LAverageTreatment plant | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.14 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.111 mg/LAverageTreatment plant | 2 mg/LMCL | Within the limit |
| Strontium | 12.1 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| Vanadium | 4.8 ug/LAverageSystem-wide | 50 ug/LNL | 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. | 7 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | Not detected ug/LRangeSystem-wide | None set | None detected |
| ChlorateA byproduct that can form during disinfection, especially when hypochlorite solutions degrade. | 4.6 ug/LAverageSystem-wide | 800 ug/LNL | Detected — no federal limit |
Physical & aggregate
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, CA's water
+Is La Puente Valley Cwd, CA tap water safe to drink in 2020?
Every one of the 17 contaminants measured in La Puente Valley Cwd, 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 La Puente Valley Cwd, CA tap water?
17 contaminants were measured in La Puente Valley Cwd, CA's 2020 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 11 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, 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 La Puente Valley Cwd, 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.