Drinking water quality · 2020
· Verified
What's in Del Rio Mutual — El Monte, Ca, CA tap water
16 contaminants were measured in the Del Rio Mutual — El Monte, Ca, CA water system's 2020 annual report. Each is shown below against its federal limit.
- Reporting year
- 2020
- Contaminants measured
- 16
- 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.
- Treatment technique violationHealth-based1 violation on record · most recent Oct 20241 open
- Reporting1 violation on record · most recent Oct 20241 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.62 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.1 ug/LAverageSource water | None set | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0016 mg/L90th percentileAt the tap | None set | Within the limit |
| SodiumA naturally occurring salt component. | 73.5 mg/LAverageSource water | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.86 mg/LAverageSource water | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.19 mg/LAverageSource water | 4 mg/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 105 mg/LAverageSource water | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 130 mg/LAverageSource water | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.05 NTUAverageSource water | 1 NTUMCL | Within the limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 304.5 mg/LAverageSource water | None set | Detected — no federal limit |
| OdorA measure of detectable smell in the water. | 1AverageSource water | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 995AverageSource water | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 605 mg/LAverageSource 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. | 0Highest single sampleMonthly Number Of Positives | None set | None detected |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0 pCi/LRangeSource water | 15 pCi/LMCL | None detected |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 2.1 pCi/LAverageSource water | 20 pCi/LMCL | Detected — no federal limit |
People also ask about Del Rio Mutual — El Monte, Ca, CA's water
+Is Del Rio Mutual — El Monte, Ca, CA tap water safe to drink in 2020?
Every one of the 16 contaminants measured in Del Rio Mutual — El Monte, 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 Del Rio Mutual — El Monte, Ca, CA tap water?
16 contaminants were measured in Del Rio Mutual — El Monte, Ca, CA's 2020 Consumer Confidence Report, spanning physical & aggregate, inorganic chemicals, and metals. 6 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 Del Rio Mutual — El Monte, 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 Del Rio Mutual — El Monte, 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.