Drinking water quality · 2026
· Verified
What's in Eastern Municipal Wd, CA tap water
81 contaminants were measured in the Eastern Municipal Wd, CA water system's 2026 annual report. Each is shown below against its federal limit — 3 sit at or above that limit.
- Reporting year
- 2026
- Contaminants measured
- 81
- Over federal limit
- 3
- Approaching the limit
- 1
- Worst contaminant
- Total Dissolved Solids
- Service area
- CA
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound detected in Eastern Municipal Wd, CA
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
Lithium
● Detected (no federal limit)near national p90 (76.59999999999991 mg/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Eastern Municipal Wd, CA's drinking water comes from ground water, drawn from 32 sources.
Source
- WELL · 9
- WELL 84
- WELL 17 - CIENEGA
- WELL 88
- + 20 more
Treatment
- WELL 38 - CL
- WELL 90 - EVANS & OLD MTN - TREATED - CL
- WELL 91 - RAMONA & ESPLND - TREATED - CL
- + 11 more
Distribution
Also buys water from METROPOLITAN WATER DIST. OF SO. CAL., ELSINORE VALLEY MWD, and 3 more.
Historical readings · EPA Six-Year Review (2012–2019)
6 contaminants historically over EPA limits in Eastern Municipal Wd, CA
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
GROSS BETA worst: 2017 | 13.3 mrem/yr 3.3× | 4 mrem/yr | '13'14'15'16'17'18'19 |
TTHM worst: 2016 | 0.12 mg/L 1.5× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
ARSENIC worst: 2016 | 0.013 mg/L 1.3× near national p90 | 0.01 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE worst: 2019 | 13 mg/L 1.3× | 10 mg/L | '12'13'14'15'16'17'18'19 |
NITRATE NITRITE worst: 2016 | 12 mg/L 1.2× | 10 mg/L | '16'17 |
HAA5 worst: 2017 | 0.07 mg/L 1.2× | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
BARIUM worst: 2012 | 1.45 mg/L within 6.6× the national p90 | 2 mg/L | '12'13'14'15'16'17'18'19 |
PCE worst: 2014 | 0.0025 mg/L within | 0.005 mg/L | '14'17 |
FLUORIDE worst: 2017 | 1.3 mg/L within | 4 mg/L | '12'13'14'15'16'17'18'19 |
TCE worst: 2012 | 0.0013 mg/L within | 0.005 mg/L | '12'13'14'15'16'17'19 |
SELENIUM worst: 2013 | 0.012 mg/L within | 0.05 mg/L | '12'13'14'15'16'17'18'19 |
CADMIUM worst: 2018 | 0.00039 mg/L within below national p90 | 0.005 mg/L | '18 |
CYANIDE worst: 2017 | 0.0101 mg/L within below national p90 | 0.2 mg/L | '17 |
URANIUM worst: 2014 | 0.0285 ug/L within above national p90 | 30 ug/L | '12'13'14'15'16'17'18'19 |
NITRITE worst: 2016 | 0.0005 mg/L within | 1 mg/L | '16'18'19 |
MBAA worst: 2012 | 0.003 mg/L | — | '12'13'14'15'16'17'18'19 |
COPPER worst: 2016 | 0.15 mg/L below national p90 | — | '16'18 |
MCAA worst: 2012 | 0.016 mg/L | — | '12'13'14'15'16'17'19 |
LEAD worst: 2012 | 0.015 mg/L | — | '12'18 |
DBAA worst: 2012 | 0.011 mg/L | — | '12'13'14'15'16'17'18'19 |
DCAA worst: 2012 | 0.02 mg/L | — | '12'13'14'15'16'17'18'19 |
TCAA worst: 2012 | 0.0048 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.018 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMOFORM worst: 2012 | 0.059 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.014 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.025 mg/L | — | '12'13'14'15'16'17'18'19 |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 1706 MG/LAverageSource water | 1000 MG/LMCL | At or above the limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 2436.6923076923076 UMHO/CMAverageSource water | 1600 UMHO/CMMCL | At or above the limit |
| ColorA measure of visible tint in the water. | 14.134615384615385 UNITSAverageOther | 15 UNITSMCL | Approaching the limit |
| OdorA measure of detectable smell in the water. | 1.7307692307692308 TONAverageOther | 3 TONMCL | Within the limit |
| TurbidityA measure of cloudiness from suspended particles in the water. | 2.503846153846154 NTUAverageOther | 5 NTUMCL | Within the limit |
| AlkalinityA measure of the water's capacity to neutralize acids. | 56.94444444444444 MG/LAverageOther | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 99.39038461538462 MG/LAverageEntry point | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 8.120192307692308 PHAverageEntry point | None set | Detected — no federal limit |
Inorganic chemicals
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ManganeseA naturally occurring metal from soil and rock. | 19.12857142857143 UG/LAverageSource water | 50 UG/LMCL | Within the limit |
| IronA naturally occurring metal common in groundwater. | 31.112781954887218 UG/LAverageSource water | 300 UG/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 10.116666666666665 UG/LAverageEntry point | 1000 UG/LMCL | Within the limit |
| BoronA naturally occurring element from rock and soil. | 306.71153846153845 UG/LAverageEntry point | None set | Detected — no federal limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 17.616346153846152 MG/LAverageEntry point | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 11.416666666666666 MG/LAverageOther | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 3.2533333333333334 MG/LAverageOther | None set | Detected — no federal limit |
| SilicaA naturally occurring compound from sand and rock. | 10.35 MG/LAverageOther | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 58.58076923076923 MG/LAverageEntry point | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 2.0615384615384618 UG/LAverageSource water | 6 UG/LMCL | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Carbon Tetrachloride | Not detected UG/LHighest single sampleEntry point | 0.5 UG/LMCL | None detected |
| Chlorobenzene | Not detected UG/LHighest single sampleEntry point | 70 UG/LMCL | None detected |
| Cis Dichloroethylene 12 | Not detected UG/LHighest single sampleEntry point | 6 UG/LMCL | None detected |
| Dichloroethane 12 | Not detected UG/LHighest single sampleEntry point | 0.5 UG/LMCL | None detected |
| Dichloroethylene 11 | Not detected UG/LHighest single sampleEntry point | 6 UG/LMCL | None detected |
| Dichloropropane 12 | Not detected UG/LHighest single sampleEntry point | 5 UG/LMCL | None detected |
| O Dichlorobenzene | Not detected UG/LHighest single sampleEntry point | 600 UG/LMCL | None detected |
| P Dichlorobenzene | Not detected UG/LHighest single sampleEntry point | 5 UG/LMCL | None detected |
| Styrene | Not detected UG/LHighest single sampleEntry point | 100 UG/LMCL | None detected |
| Trans Dichloroethylene 12 | Not detected UG/LHighest single sampleEntry point | 10 UG/LMCL | None detected |
| Trichlorobenzene 124 | Not detected UG/LHighest single sampleEntry point | 5 UG/LMCL | None detected |
| Trichloroethane 111 | Not detected UG/LHighest single sampleEntry point | 200 UG/LMCL | None detected |
| Trichloroethane 112 | Not detected UG/LHighest single sampleEntry point | 5 UG/LMCL | None detected |
| Vinyl Chloride | Not detected UG/LHighest single sampleEntry point | 0.5 UG/LMCL | None detected |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid, a chlorinated PFAS compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)ADONA, a newer-generation PFAS replacement compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| 4:2 Fluorotelomer sulfonic acid (4:2 FTS)4:2 fluorotelomer sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| 8:2 Fluorotelomer sulfonic acid (8:2 FTS)8:2 fluorotelomer sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid, a chlorinated PFAS compound. | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| Hexafluoropropylene oxide dimer acidHFPO-DA ('GenX chemicals'), a newer-generation PFAS replacement compound. | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| Perfluoro-3-methoxypropanoic acid (PFMPA)Perfluoro-3-methoxypropanoic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| Perfluoro-4-methoxybutanoic acid (PFMBA)Perfluoro-4-methoxybutanoic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)Perfluoro(2-ethoxyethane)sulfonic acid, a PFAS-related compound. | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| Perfluorodecanoic acid (PFDA)Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| Perfluorododecanoic acid (PFDoA)Perfluorododecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleSource water | None set | None detected |
| Perfluoroundecanoic acid (PFUnA)Perfluoroundecanoic acid, a longer-chain PFAS 'forever chemical.' | Not detected NG/LHighest single sampleEntry point | None set | None detected |
| 6:2 Fluorotelomer sulfonic acid (6:2 FTS)6:2 fluorotelomer sulfonic acid, a PFAS-related compound. | 6.423333333333333 NG/LAverageSource water | None set | Detected — no federal limit |
| Perfluoroheptanesulfonic acid (PFHpS)Perfluoroheptanesulfonic acid, a PFAS 'forever chemical.' | 1.4883333333333333 NG/LAverageSource water | None set | Detected — no federal limit |
| Perfluoroheptanoic acidPerfluoroheptanoic acid, a PFAS 'forever chemical.' | 6.377777777777777 NG/LAverageEntry point | None set | Detected — no federal limit |
| Perfluorohexanoic acidPerfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' | 40.27222222222222 NG/LAverageEntry point | None set | Detected — no federal limit |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | 1.2349999999999999 NG/LAverageSource water | None set | Detected — no federal limit |
| Perfluoropentanesulfonic acid (PFPeS)Perfluoropentanesulfonic acid, a PFAS 'forever chemical.' | 3.788888888888889 NG/LAverageEntry point | None set | Detected — no federal limit |
| Perfluoropentanoic acidPerfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' | 57.58888888888888 NG/LAverageEntry point | None set | Detected — no federal limit |
| PFBAPerfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' | 24.038888888888888 NG/LAverageEntry point | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| 1,2,3-TCP | Not detected UG/LHighest single sampleEntry point | 0.005 UG/LMCL | None detected |
| Benzene | Not detected UG/LHighest single sampleEntry point | 1 UG/LMCL | None detected |
| ChloroethaneA volatile organic compound used in some industrial processes. | Not detected UG/LHighest single sampleEntry point | None set | None detected |
| Chloromethane | Not detected UG/LHighest single sampleEntry point | None set | None detected |
| Dichlorodifluoromethane | Not detected UG/LHighest single sampleEntry point | None set | None detected |
| Dichloromethane | Not detected UG/LHighest single sampleEntry point | 5 UG/LMCL | None detected |
| Ethylbenzene | Not detected UG/LHighest single sampleEntry point | 300 UG/LMCL | None detected |
| Toluene | Not detected UG/LHighest single sampleEntry point | 150 UG/LMCL | None detected |
| XylenesA group of industrial solvents found in gasoline and paint. | Not detected UG/LHighest single sampleEntry point | 1750 UG/LMCL | None detected |
People also ask about Eastern Municipal Wd, CA's water
+Is Eastern Municipal Wd, CA tap water safe to drink in 2026?
The 2026 Consumer Confidence Report for the Eastern Municipal Wd, CA water utility lists 3 contaminants at or above the federal limit: Total Dissolved Solids, Specific Conductance, and Chloride. 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 Eastern Municipal Wd, CA tap water?
81 contaminants were measured in Eastern Municipal Wd, CA's 2026 Consumer Confidence Report, spanning other, pfas ("forever chemicals"), and metals. 40 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 Eastern Municipal Wd, CA tap water?
3 contaminants in Eastern Municipal Wd, CA's 2026 report sit at or above the federal limit: Total Dissolved Solids (1.7× the limit); Specific Conductance (1.5× the limit); Chloride (1.2× 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 Eastern Municipal Wd, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2026 report is Total Dissolved Solids, at 1.7× the federal threshold. It belongs to the physical & aggregate family of contaminants.
+Are any contaminants in Eastern Municipal Wd, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Color. 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 Eastern Municipal Wd, CA's 2026 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 Eastern Municipal Wd, 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 2026 report; a new report will replace it once the utility publishes its next annual update.