Water Quality Report · Updated October 07, 2026
SAN BERNARDINO VALLEY WD
SAN BERNARDINO VALLEY WD delivers tap water graded A (86/100) by TapWaterSafety.org. The utility serves approximately 109,608 residents in SAN BERNARDINO, California using groundwater. The most significant water quality concerns are: Chromium (hexavalent) significantly above health guideline; Nitrate and nitrite significantly above health guideline; Nitrate significantly above health guideline. For questions, the utility can be reached at 909-387-9223.
Is SAN BERNARDINO tap water safe to drink?
SAN BERNARDINO VALLEY WD delivers tap water that earns a grade of A (86/100) from TapWaterSafety.org — an excellent rating reflecting minimal contamination and full compliance with health guidelines.
The utility serves 109,608 residents in SAN BERNARDINO, drawing from groundwater.
Public testing data identifies 6 contaminants in this water above EWG's health-based guidelines, including: Chromium (hexavalent), Nitrate and nitrite, Nitrate, Total trihalomethanes (TTHMs), Tetrachloroethylene (perchloroethylene), 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.
EPA compliance record
Official U.S. EPA records for SAN BERNARDINO VALLEY WD (system ID CA3610019) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for SAN BERNARDINO residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for SAN BERNARDINO VALLEY WD.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 1.18 ppb, 59x above the EWG health guideline of 0.02 ppb.
Nitrate and nitrite significantly above health guideline
Moderate concernNitrate and nitrite detected at 4.2 ppm, 30x above the EWG health guideline of 0.14 ppm.
Nitrate significantly above health guideline
Moderate concernNitrate detected at 3.91 ppm, 28x above the EWG health guideline of 0.14 ppm.
Contact SAN BERNARDINO VALLEY 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 SAN BERNARDINO
Filters matched to the specific contaminants in this water supply.
Carbon block filter certified to NSF/ANSI 42 + 53
$180-$599A certified carbon block filter handles most baseline water quality concerns.
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 86/100 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 |
|---|---|---|---|---|---|---|---|---|
| Chromium (hexavalent) Heavy metal |
1.18 ppb | 0.02 | — | — | — | — | — | 59× over |
| Nitrate and nitrite Inorganic |
4.2 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 30× over |
| Nitrate Inorganic |
3.91 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 28× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
3.17 ppb | 0.15 | 80.0 | 100 | — | — | — | 21× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
0.87 ppb | 0.06 | 5.0 | — | — | — | — | 15× over |
| Uranium Radiological |
4.3 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 10× over |
| Vanadium Other |
2.05 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Trichlorotrifluoroethane Other |
5.0 ppb | 4000.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.4 ppm | — | 4.0 | 1.5 | 1.5 | — | — | 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.
SAN BERNARDINO VALLEY WD service area
This water system serves 1 community in San Bernardino County, California. Click any city for its dedicated tap water quality page.
Find the right filter for SAN BERNARDINO water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.