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
7.2× the limit
Service area
CA
state-level CCR
Source
Utility CCR

Physical & aggregate

ContaminantMeasuredStatus
TurbidityA measure of cloudiness from suspended particles in the water.0.28–7.2 NTURangeValencia Heights Water CompanyAt or above the limit
+By source (3)Valencia Heights Water Company, Covina Irrigating Company, Metropolitan Water District
  • Valencia Heights Water CompanyZone
    range0.28–7.2 NTU720% of limit
  • Covina Irrigating CompanyZone
    15% of limit
  • Metropolitan Water DistrictZone
    rangeNot detected NTU4% of limit
ColorA measure of visible tint in the water.0–25RangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range0–25
  • Metropolitan Water DistrictZone
    range1
  • Covina Irrigating CompanyZone
    rangeNot detected
HardnessA measure of dissolved calcium and magnesium minerals.440–610 mg/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range440–610 mg/L
  • Metropolitan Water DistrictZone
    range280 mg/L
  • Covina Irrigating CompanyZone
    range87–170 mg/L
OdorA measure of detectable smell in the water.3Reported levelMetropolitan Water DistrictDetected — no federal limit
+By source (3)Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
  • Metropolitan Water DistrictZone
    range3
  • Valencia Heights Water CompanyZone
    range1
  • Covina Irrigating CompanyZone
    rangeNot detected
Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content.1200–1300 uS/cmRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range1200–1300 uS/cm
  • Metropolitan Water DistrictZone
    range960–1000 uS/cm
  • Covina Irrigating CompanyZone
    range390–510 uS/cm
Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts.810–920 mg/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range810–920 mg/L
  • Metropolitan Water DistrictZone
    range630–640 mg/L
  • Covina Irrigating CompanyZone
    range210–300 mg/L

Disinfection byproducts

ContaminantMeasuredStatus
TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.19–79 ug/LRangeValencia Heights Water CompanyApproaching the limit
BromateA disinfection byproduct formed when bromide-containing water is treated with ozone.0–7.6 ug/LRangeMetropolitan Water DistrictWithin the limit
HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.5.5–16 ug/LRangeValencia Heights Water CompanyWithin the limit
PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection.0–4.6 ug/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range0–4.6 ug/L
  • Metropolitan Water DistrictZone
    rangeNot detected ug/L
  • Covina Irrigating CompanyZone
    rangeNot detected ug/L

Disinfectants

ContaminantMeasuredStatus
ChlorineA disinfectant added to drinking water to kill bacteria and viruses.0.3–3.6 mg/LRangeValencia Heights Water CompanyApproaching the limit

Inorganic chemicals

ContaminantMeasuredStatus
NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits.1–6.7 mg/LRangeValencia Heights Water CompanyWithin the limit
+By source (3)Valencia Heights Water Company, Covina Irrigating Company, Metropolitan Water District
  • Valencia Heights Water CompanyZone
    range1–6.7 mg/L67% of limit
  • Covina Irrigating CompanyZone
    range0–0.7 mg/L7% of limit
  • Metropolitan Water DistrictZone
    rangeNot detected mg/L0% of limit
FluorideA mineral often added to drinking water to help prevent tooth decay.0.6–0.8 mg/LRangeMetropolitan Water DistrictWithin the limit
+By source (3)Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
  • Metropolitan Water DistrictZone
    range0.6–0.8 mg/L20% of limit
  • Valencia Heights Water CompanyZone
    range0.37–0.42 mg/L11% of limit
  • Covina Irrigating CompanyZone
    range0.14–0.25 mg/L6% of limit
ChlorideA naturally occurring salt compound.98–110 mg/LRangeMetropolitan Water DistrictDetected — no federal limit
+By source (3)Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
  • Metropolitan Water DistrictZone
    range98–110 mg/L
  • Valencia Heights Water CompanyZone
    range48–110 mg/L
  • Covina Irrigating CompanyZone
    range11–74 mg/L
SulfateA naturally occurring mineral from rock and soil.230–300 mg/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range230–300 mg/L
  • Metropolitan Water DistrictZone
    range210–230 mg/L
  • Covina Irrigating CompanyZone
    range27–60 mg/L

Metals

ContaminantMeasuredStatus
ArsenicA naturally occurring element that also enters water from industry and agriculture.2.7–5 ug/LRangeCovina Irrigating CompanyWithin the limit
+By source (3)Covina Irrigating Company, Metropolitan Water District, Valencia Heights Water Company
  • Covina Irrigating CompanyZone
    range2.7–5 ug/L50% of limit
  • Metropolitan Water DistrictZone
    rangeNot detected ug/L0% of limit
  • Valencia Heights Water CompanyZone
    rangeNot detected ug/L0% of limit
CopperA metal that enters water from corroding household plumbing.0.58 mg/LReported levelValencia Heights Water CompanyWithin the limit
BariumA metal from erosion of natural deposits and industrial discharge.0–0.12 mg/LRangeValencia Heights Water CompanyWithin the limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range0–0.12 mg/L6% of limit
  • Metropolitan Water DistrictZone
    range0.11 mg/L6% of limit
  • Covina Irrigating CompanyZone
    rangeNot detected mg/L0% of limit
AluminumA common element sometimes used as a treatment coagulant.58–240 ug/LRangeMetropolitan Water DistrictDetected — no federal limit
+By source (3)Metropolitan Water District, Covina Irrigating Company, Valencia Heights Water Company
  • Metropolitan Water DistrictZone
    range58–240 ug/L
  • Covina Irrigating CompanyZone
    range0–54 ug/L
  • Valencia Heights Water CompanyZone
    rangeNot detected ug/L
BoronA naturally occurring element from rock and soil.0.078–0.18 mg/LRangeCovina Irrigating CompanyDetected — no federal limit
+By source (3)Covina Irrigating Company, Metropolitan Water District, Valencia Heights Water Company
  • Covina Irrigating CompanyZone
    range0.078–0.18 mg/L
  • Metropolitan Water DistrictZone
    range0.14 mg/L
  • Valencia Heights Water CompanyZone
    range0.12–0.14 mg/L
IronA naturally occurring metal common in groundwater.0–790 ug/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Covina Irrigating Company, Metropolitan Water District
  • Valencia Heights Water CompanyZone
    range0–790 ug/L
  • Covina Irrigating CompanyZone
    rangeNot detected ug/L
  • Metropolitan Water DistrictZone
    rangeNot detected ug/L
ManganeseA naturally occurring metal from soil and rock.0–230 ug/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range0–230 ug/L
  • Metropolitan Water DistrictZone
    rangeNot detected ug/L
  • Covina Irrigating CompanyZone
    rangeNot detected ug/L
SodiumA naturally occurring salt component.68–100 mg/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range68–100 mg/L
  • Metropolitan Water DistrictZone
    range98–100 mg/L
  • Covina Irrigating CompanyZone
    range12–63 mg/L
Vanadium0–9.7 ug/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range0–9.7 ug/L
  • Metropolitan Water DistrictZone
    rangeNot detected ug/L
  • Covina Irrigating CompanyZone
    rangeNot detected ug/L

Radionuclides

ContaminantMeasuredStatus
Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances.3.3 pCi/LReported levelCovina Irrigating CompanyWithin the limit
+By source (3)Covina Irrigating Company, Metropolitan Water District, Valencia Heights Water Company
  • Covina Irrigating CompanyZone
    range3.3 pCi/L22% of limit
  • Metropolitan Water DistrictZone
    rangeNot detected pCi/L0% of limit
  • Valencia Heights Water CompanyZone
    rangeNot detected pCi/L0% of limit
Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements.0–1 pCi/LRangeMetropolitan Water DistrictWithin the limit
+By source (3)Metropolitan Water District, Valencia Heights Water Company, Covina Irrigating Company
  • Metropolitan Water DistrictZone
    range0–1 pCi/L20% of limit
  • Valencia Heights Water CompanyZone
    rangeNot detected pCi/L0% of limit
  • Covina Irrigating CompanyZone
    rangeNot detected pCi/L0% of limit
Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances.4–7 pCi/LRangeMetropolitan Water DistrictDetected — no federal limit
+By source (2)Metropolitan Water District, Covina Irrigating Company
  • Metropolitan Water DistrictZone
    range4–7 pCi/L
  • Covina Irrigating CompanyZone
    rangeNot detected pCi/L
UraniumA naturally occurring radioactive metal from erosion of natural deposits.4.4–9.7 pCi/LRangeValencia Heights Water CompanyDetected — no federal limit
+By source (3)Valencia Heights Water Company, Metropolitan Water District, Covina Irrigating Company
  • Valencia Heights Water CompanyZone
    range4.4–9.7 pCi/L
  • Metropolitan Water DistrictZone
    range1–3 pCi/L
  • Covina Irrigating CompanyZone
    range2.5 pCi/L
Source: Valencia Heights Water Co. — West Covina, Ca, CA's 2021 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.

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.

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