Drinking water quality · 2022
· Verified
What's in Elsinore Valley MWD — Lake Elsinore, Ca, CA tap water
59 contaminants were measured in the Elsinore Valley MWD — Lake Elsinore, Ca, CA water system's 2022 annual report. Each is shown below against its federal limit — 5 sit at or above that limit.
- Reporting year
- 2022
- Contaminants measured
- 59
- Over federal limit
- 5
- Approaching the limit
- 1
- Worst contaminant
- Turbidity
- Service area
- CA
- TurbidityPhysical & aggregate · Reported level0–2.5 NTUlimit 1 NTU · 2.5× the limit
- PFOAPFAS ("forever chemicals") · Reported level0–8.4 ng/Llimit 5.1 ng/L · 2.1× the limit
- BromateDisinfection byproducts · Reported level0–20 ug/L
- PFOSPFAS ("forever chemicals") · Reported level0–4.3 ng/Llimit 6.5 ng/L · 1.1× the limit
- Gross AlphaRadionuclides · Reported level11.6–15.5 pCi/Llimit 15 pCi/L · 1.0× the limit
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0–2.5 NTUReported levelAuld Valley Pipeline Blend | 1 NTUMCL | At or above the limit |
+By source (4)— Auld Valley Pipeline Blend, Elsinore Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| AlkalinityA measure of the water's capacity to neutralize acids. | 32–334 mg/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| ColorA measure of visible tint in the water. | 0–7.5Reported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Groundwater Blend, Elsinore Groundwater Blend +1 more
| |||
| HardnessA measure of dissolved calcium and magnesium minerals. | 254–342 mg/LReported levelTemescal Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Elsinore Groundwater Blend +1 more
| |||
| OdorA measure of detectable smell in the water. | 0–2Reported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend, Elsinore Groundwater Blend +1 more
| |||
| pHA measure of how acidic or basic the water is. | 7.1–8.98Reported levelTemescal Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend, Elsinore Groundwater Blend +1 more
| |||
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 239–1080 uS/cmReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Elsinore Groundwater Blend, Temescal Groundwater Blend +1 more
| |||
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 3.9 mg/LAverageSystem-wide | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 145–691 mg/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Elsinore Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 0–8.4 ng/LReported levelTemescal Groundwater Blend | 5.1 ng/LNL | At or above the limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Elsinore Groundwater Blend +1 more
| |||
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 0–4.3 ng/LReported levelElsinore Groundwater Blend | 6.5 ng/LNL | At or above the limit |
+By source (4)— Elsinore Groundwater Blend, Temescal Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 0–6.8 ng/LReported levelElsinore Groundwater Blend | 3 ng/LNL | Within the limit |
+By source (4)— Elsinore Groundwater Blend, Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend +1 more
| |||
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | Not detected ng/LReported levelElsinore Groundwater Blend | None set | None detected |
+By source (4)— Elsinore Groundwater Blend, Temescal Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 0–3 ng/LReported levelTemescal Valley Pipeline Blend | 500 ng/LNL | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend, Elsinore Groundwater Blend +1 more
| |||
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 0–5.5 ng/LReported levelTemescal Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Elsinore Groundwater Blend +1 more
| |||
| Perfluoropentanoic acidPerfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' | 0–7 ng/LReported levelTemescal Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Elsinore Groundwater Blend +1 more
| |||
| PFBAPerfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' | 0–7.2 ng/LReported levelTemescal Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Groundwater Blend, Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend +1 more
| |||
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 0–20 ug/LReported levelTemescal Valley Pipeline Blend | None set | At or above the limit |
+By source (2)— Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend
| |||
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 31.5 ug/LRunning annual avgLraa Avg | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 11.6 ug/LRunning annual avgLraa Avg | None set | Within the limit |
| Bromodichloroacetic acidA brominated haloacetic acid disinfection byproduct. | 1 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| ChlorateA byproduct that can form during disinfection, especially when hypochlorite solutions degrade. | 0–430 ug/LReported levelElsinore Groundwater Blend | 800 ug/LNL | Detected — no federal limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| NDMA | 0–5 ng/LReported levelTemescal Valley Pipeline Blend | 10 ng/LNL | Detected — no federal limit |
+By source (2)— Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend
| |||
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0–2.5 ug/LReported levelTemescal Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend, Elsinore Groundwater Blend +1 more
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 11.6–15.5 pCi/LReported levelTemescal Valley Pipeline Blend | 15 pCi/LMCL | At or above the limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Auld Valley Pipeline Blend +1 more
| |||
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0–1.8 pCi/LReported levelElsinore Groundwater Blend | 5 pCi/LMCL | Within the limit |
+By source (4)— Elsinore Groundwater Blend, Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend +1 more
| |||
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 0–20 pCi/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| RadonA naturally occurring radioactive gas that can dissolve into groundwater. | 1660–2370 pCi/LReported levelTemescal Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Groundwater Blend, Temescal Valley Pipeline Blend, Elsinore Groundwater Blend +1 more
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 8–15 pCi/LReported levelTemescal Valley Pipeline Blend | 20 pCi/LMCL | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Auld Valley Pipeline Blend +1 more
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0–9.1 ug/LReported levelAuld Valley Pipeline Blend | None set | Approaching the limit |
+By source (4)— Auld Valley Pipeline Blend, Elsinore Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| SeleniumA trace element from natural deposits and industrial discharge. | 0–17 ug/LReported levelElsinore Groundwater Blend | None set | Within the limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| CopperA metal that enters water from corroding household plumbing. | 0.22 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1.2 ug/L90th percentileAt the tap | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0–150 ug/LReported levelElsinore Groundwater Blend | None set | Within the limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend +1 more
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 0–180 ug/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| BoronA naturally occurring element from rock and soil. | 0–551 ug/LReported levelAuld Valley Pipeline Blend | 1000 ug/LNL | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Elsinore Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| CalciumA naturally occurring mineral that contributes to water hardness. | 2.7–120 mg/LReported levelElsinore Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend +1 more
| |||
| IronA naturally occurring metal common in groundwater. | 0–309 ug/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Groundwater Blend, Temescal Valley Pipeline Blend +1 more
| |||
| LithiumA naturally occurring element found in some groundwater. | 0–43 ug/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 5.4–28 mg/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Elsinore Groundwater Blend, Temescal Groundwater Blend +1 more
| |||
| ManganeseA naturally occurring metal from soil and rock. | 8.7 ug/LAverageSystem-wide | None set | Detected — no federal limit |
+By source (4)— Temescal Groundwater Blend, Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend +1 more
| |||
| NickelA metal from natural deposits and industrial discharge. | 0–29 ug/LReported levelTemescal Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Temescal Valley Pipeline Blend, Auld Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| PotassiumA naturally occurring mineral from rock and soil. | 1.1–7.6 mg/LReported levelAuld Valley Pipeline Blend | None set | Detected — no federal limit |
+By source (4)— Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend, Elsinore Groundwater Blend +1 more
| |||
| SodiumA naturally occurring salt component. | 54–190 mg/LReported levelElsinore Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
| Vanadium | 8.9–49 ug/LReported levelElsinore Groundwater Blend | 50 ug/LNL | Detected — no federal limit |
+By source (4)— Elsinore Groundwater Blend, Temescal Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0–6.9 mg/LReported levelTemescal Valley Pipeline Blend | 10 mg/LMCL | Within the limit |
+By source (4)— Temescal Valley Pipeline Blend, Elsinore Groundwater Blend, Auld Valley Pipeline Blend +1 more
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.13–1.2 mg/LReported levelElsinore Groundwater Blend | 4 mg/LMCL | Within the limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend +1 more
| |||
| Dichloroacetic acidA haloacetic acid disinfection byproduct. | 2.5 ug/LAverageSystem-wide | None set | Within the limit |
| Bromochloroacetic acidA mixed-halogen haloacetic acid disinfection byproduct. | 2.1 ug/LAverageSystem-wide | None set | Within the limit |
| Dibromoacetic acidA brominated haloacetic acid disinfection byproduct. | 1.8 ug/LAverageSystem-wide | None set | Within the limit |
| Trichloroacetic acidA haloacetic acid disinfection byproduct. | 0.9 ug/LAverageSystem-wide | None set | Within the limit |
| Chlorodibromoacetic acidA brominated haloacetic acid disinfection byproduct. | 0.7 ug/LAverageSystem-wide | None set | Within the limit |
| Monobromoacetic acidA brominated haloacetic acid disinfection byproduct. | 0.1 ug/LAverageSystem-wide | None set | Within the limit |
| BromideA naturally occurring salt found in source water. | 211 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| ChlorideA naturally occurring salt compound. | 59–230 mg/LReported levelElsinore Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Valley Pipeline Blend +1 more
| |||
| SulfateA naturally occurring mineral from rock and soil. | 53–240 mg/LReported levelElsinore Groundwater Blend | None set | Detected — no federal limit |
+By source (4)— Elsinore Groundwater Blend, Auld Valley Pipeline Blend, Temescal Groundwater Blend +1 more
| |||
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium | 0–1.2 ug/LReported levelTemescal Valley Pipeline Blend | 0.02 ug/LPublic health goal | Within the limit |
+By source (4)— Temescal Valley Pipeline Blend, Temescal Groundwater Blend, Auld Valley Pipeline Blend +1 more
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0 %Highest single sampleSystem-wide | 0 %MCLG | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 1.2 %Highest single sampleSystem-wide | 0 %MCLG | Detected — no federal limit |
People also ask about Elsinore Valley MWD — Lake Elsinore, Ca, CA's water
+Is Elsinore Valley MWD — Lake Elsinore, Ca, CA tap water safe to drink in 2022?
The 2022 Consumer Confidence Report for the Elsinore Valley MWD — Lake Elsinore, Ca, CA water utility lists 5 contaminants at or above the federal limit: Turbidity, PFOA, Bromate, PFOS, and Gross Alpha. 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 Elsinore Valley MWD — Lake Elsinore, Ca, CA tap water?
59 contaminants were measured in Elsinore Valley MWD — Lake Elsinore, Ca, CA's 2022 Consumer Confidence Report, spanning metals, inorganic chemicals, and physical & aggregate. 18 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 Elsinore Valley MWD — Lake Elsinore, Ca, CA tap water?
5 contaminants in Elsinore Valley MWD — Lake Elsinore, Ca, CA's 2022 report sit at or above the federal limit: Turbidity (2.5× the limit); PFOA (2.1× the limit); Bromate (2.0× the limit); PFOS (1.1× the limit); Gross Alpha (1.0× 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 Elsinore Valley MWD — Lake Elsinore, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2022 report is Turbidity, at 2.5× the federal threshold. It belongs to the physical & aggregate family of contaminants.
+Are any contaminants in Elsinore Valley MWD — Lake Elsinore, Ca, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Arsenic. 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 Elsinore Valley MWD — Lake Elsinore, Ca, CA's 2022 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 Elsinore Valley MWD — Lake Elsinore, 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 2022 report; a new report will replace it once the utility publishes its next annual update.