Drinking water quality · 2020
· Verified
What's in La Puente Valley Cwd — La Puente, Ca, CA tap water
17 contaminants were measured in the La Puente Valley Cwd — La Puente, Ca, 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
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 7.8 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.34 mg/LAverageSystem-wide | 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/LAverageSystem-wide | 15 pCi/LMCL | Within the limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 2.1 pCi/LAverageSystem-wide | 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. | 1.32 ug/LAverageSystem-wide | 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/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.23 ug/L90th percentileAt the tap | None set | 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/LAverageSystem-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 — La Puente, Ca, CA's water
+Is La Puente Valley Cwd — La Puente, Ca, CA tap water safe to drink in 2020?
Every one of the 17 contaminants measured in La Puente Valley Cwd — La Puente, 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 La Puente Valley Cwd — La Puente, Ca, CA tap water?
17 contaminants were measured in La Puente Valley Cwd — La Puente, Ca, CA's 2020 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 10 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 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 — 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 2020 report; a new report will replace it once the utility publishes its next annual update.