Drinking water quality · 2021
· Verified
What's in Valencia Heights Water Co. — West Covina, Ca, CA tap water
28 contaminants were measured in the Valencia Heights Water Co. — West Covina, Ca, CA water system's 2021 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2021
- Contaminants measured
- 28
- Over federal limit
- 1
- Approaching the limit
- 2
- Worst contaminant
- Turbidity
- Service area
- CA
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.28–7.2 NTURangeValencia Heights Water Company | 1 NTUMCL | At or above the limit |
+By source (3)— Valencia Heights Water Company, Covina Irrigating Company, Metropolitan Water District
| |||
| ColorA measure of visible tint in the water. | 0–25RangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
| HardnessA measure of dissolved calcium and magnesium minerals. | 440–610 mg/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
| OdorA measure of detectable smell in the water. | 3Reported levelMetropolitan Water District | None set | Detected — no federal limit |
+By source (3)— Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
| |||
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 1200–1300 uS/cmRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 810–920 mg/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 19–79 ug/LRangeValencia Heights Water Company | None set | Approaching the limit |
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 0–7.6 ug/LRangeMetropolitan Water District | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 5.5–16 ug/LRangeValencia Heights Water Company | None set | Within the limit |
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0–4.6 ug/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.3–3.6 mg/LRangeValencia Heights Water Company | None set | Approaching the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 1–6.7 mg/LRangeValencia Heights Water Company | 10 mg/LMCL | Within the limit |
+By source (3)— Valencia Heights Water Company, Covina Irrigating Company, Metropolitan Water District
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.6–0.8 mg/LRangeMetropolitan Water District | 4 mg/LMCL | Within the limit |
+By source (3)— Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
| |||
| ChlorideA naturally occurring salt compound. | 98–110 mg/LRangeMetropolitan Water District | None set | Detected — no federal limit |
+By source (3)— Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
| |||
| SulfateA naturally occurring mineral from rock and soil. | 230–300 mg/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.7–5 ug/LRangeCovina Irrigating Company | None set | Within the limit |
+By source (3)— Covina Irrigating Company, Metropolitan Water District, Valencia Heights Water Company
| |||
| CopperA metal that enters water from corroding household plumbing. | 0.58 mg/LReported levelValencia Heights Water Company | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0–0.12 mg/LRangeValencia Heights Water Company | 2 mg/LMCL | Within the limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 58–240 ug/LRangeMetropolitan Water District | None set | Detected — no federal limit |
+By source (3)— Metropolitan Water District, Covina Irrigating Company, Valencia Heights Water Company
| |||
| BoronA naturally occurring element from rock and soil. | 0.078–0.18 mg/LRangeCovina Irrigating Company | 1 mg/LNL | Detected — no federal limit |
+By source (3)— Covina Irrigating Company, Metropolitan Water District, Valencia Heights Water Company
| |||
| IronA naturally occurring metal common in groundwater. | 0–790 ug/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Covina Irrigating Company, Metropolitan Water District
| |||
| ManganeseA naturally occurring metal from soil and rock. | 0–230 ug/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
| SodiumA naturally occurring salt component. | 68–100 mg/LRangeValencia Heights Water Company | None set | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
| Vanadium | 0–9.7 ug/LRangeValencia Heights Water Company | 50 ug/LNL | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 3.3 pCi/LReported levelCovina Irrigating Company | 15 pCi/LMCL | Within the limit |
+By source (3)— Covina Irrigating Company, Metropolitan Water District, Valencia Heights Water Company
| |||
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0–1 pCi/LRangeMetropolitan Water District | 5 pCi/LMCL | Within the limit |
+By source (3)— Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
| |||
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4–7 pCi/LRangeMetropolitan Water District | None set | Detected — no federal limit |
+By source (2)— Metropolitan Water District, Covina Irrigating Company
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 4.4–9.7 pCi/LRangeValencia Heights Water Company | 20 pCi/LMCL | Detected — no federal limit |
+By source (3)— Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
| |||
People also ask about Valencia Heights Water Co. — West Covina, Ca, CA's water
+Is Valencia Heights Water Co. — West Covina, Ca, CA tap water safe to drink in 2021?
The 2021 Consumer Confidence Report for the Valencia Heights Water Co. — West Covina, 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 Valencia Heights Water Co. — West Covina, Ca, CA tap water?
28 contaminants were measured in Valencia Heights Water Co. — West Covina, Ca, CA's 2021 Consumer Confidence Report, spanning metals, physical & aggregate, and disinfection byproducts. 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.
+Which contaminants exceed federal limits in Valencia Heights Water Co. — West Covina, Ca, CA tap water?
One contaminant in Valencia Heights Water Co. — West Covina, Ca, CA's 2021 report sits at or above the federal limit: Turbidity (7.2× 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 Valencia Heights Water Co. — West Covina, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2021 report is Turbidity, at 7.2× the federal threshold. It belongs to the physical & aggregate family of contaminants.
+Are any contaminants in Valencia Heights Water Co. — West Covina, Ca, CA tap water approaching the federal limit?
2 contaminants are between 80% and 100% of the federal limit in this report: TTHM and Chlorine. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Valencia Heights Water Co. — West Covina, Ca, CA's 2021 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 Valencia Heights Water Co. — West Covina, 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 2021 report; a new report will replace it once the utility publishes its next annual update.