Water Quality Report · Updated May 12, 2026
EASTERN MUNICIPAL WD
EASTERN MUNICIPAL WD delivers tap water graded F (50/100) by TapWaterSafety.org. The utility serves approximately 666,581 residents in PERRIS, California using surface water (purchased). The most significant water quality concerns are: PFAS contamination; Arsenic significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Perfluorohexane sulfonate (PFHXS) significantly above health guideline. For questions, the utility can be reached at 951-928-3777.
Is PERRIS tap water safe to drink?
EASTERN MUNICIPAL WD delivers tap water that earns a grade of F (50/100) from TapWaterSafety.org — a poor rating, with significant contamination concerns and/or recent violations.
The utility serves 666,581 residents in PERRIS, drawing from surface water (purchased).
Public testing data identifies 18 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Haloacetic acids (HAA5), Perfluorohexane sulfonate (PFHXS), Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromodichloromethane, Dibromochloromethane, Dibromoacetic acid, Chromium (hexavalent), Trichloroacetic acid, Chloroform, Bromoform, Dichloroacetic acid, Nitrate, Perfluorooctanoic acid (PFOA), Nitrate and nitrite*, Radium, combined (-226 and -228)*, Uranium. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for PERRIS residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for EASTERN MUNICIPAL WD.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA), Perfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.43 ppb, 609x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 36.2 ppb, 362x above the EWG health guideline of 0.1 ppb.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 0.341 ppt, 341x above the EWG health guideline of 0.001 ppt.
Contact EASTERN MUNICIPAL WD
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for PERRIS
Filters matched to the specific contaminants in this water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 50/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
2.43 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 609× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Perfluorohexane sulfonate (PFHXS) PFAS |
0.341 ppt | 0.001 | 10.0 | — | — | — | — | 341× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
11.7 ppb | 0.06 | — | — | — | — | — | 195× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
27.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 186× over |
| Bromodichloromethane Disinfection byproduct |
8.27 ppb | 0.06 | — | — | — | — | — | 138× over |
| Dibromochloromethane Disinfection byproduct |
8.57 ppb | 0.1 | — | — | — | — | — | 86× over |
| Dibromoacetic acid Disinfection byproduct |
1.53 ppb | 0.03 | — | — | — | — | — | 51× over |
| Chromium (hexavalent) Heavy metal |
0.316 ppb | 0.02 | — | — | — | — | — | 16× over |
| Trichloroacetic acid Disinfection byproduct |
1.57 ppb | 0.1 | — | — | — | — | — | 16× over |
| Chloroform Disinfection byproduct |
6.05 ppb | 0.4 | — | — | — | — | — | 15× over |
| Bromoform Disinfection byproduct |
4.96 ppb | 0.5 | — | — | — | — | — | 9.9× over |
| Dichloroacetic acid Disinfection byproduct |
1.84 ppb | 0.2 | — | — | — | — | — | 9.2× over |
| Nitrate Inorganic |
0.915 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 6.5× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.462 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 5.1× over |
| Nitrate and nitrite* Inorganic |
0.287 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.0× over |
| Radium, combined (-226 and -228)* Radiological |
0.07 pCi/L | 0.05 | 5.0 | — | — | — | — | 1.4× over |
| Uranium Radiological |
0.59 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 1.4× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.267 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | Below guideline |
| Chlorate Disinfection byproduct |
109.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
6.8 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perchlorate Disinfection byproduct |
0.191 ppb | 1.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
4.92 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
42.9 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Selenium Heavy metal |
0.369 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
10.9 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
8.28 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.00217 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Manganese Heavy metal |
0.526 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Aluminum Heavy metal |
2.93 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
4.03 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.045 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
1.79 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.67 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.428 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.083 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.0209 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
5.03 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
EASTERN MUNICIPAL WD service area
This water system serves 1 community in Riverside County, California. Click any city for its dedicated tap water quality page.
Find the right filter for PERRIS water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.