Water Quality Report · Updated May 12, 2026
VEOLIA WATER IDAHO
VEOLIA WATER IDAHO delivers tap water graded D (59/100) by TapWaterSafety.org. The utility serves approximately 264,978 residents in BOISE, Idaho using surface water. The most significant water quality concerns are: Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. For questions, the utility can be reached at 208-761-0627.
Is BOISE tap water safe to drink?
VEOLIA WATER IDAHO delivers tap water that earns a grade of D (59/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including arsenic significantly above health guideline.
The utility serves 264,978 residents in BOISE, drawing from surface water. Despite being legal under US EPA standards, this water would fail the European Union's Drinking Water Directive, primarily due to arsenic significantly above health guideline.
Public testing data identifies 16 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Trichloroacetic acid, Chloroform, Dichloroacetic acid, Bromodichloromethane, Chromium (hexavalent), Dibromoacetic acid, Uranium, Dibromochloromethane, Nitrate, Radium, combined (-226 and -228), Tetrachloroethylene (perchloroethylene), Bromoform. 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 BOISE residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for VEOLIA WATER IDAHO.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.71 ppb, 678x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 29.9 ppb, 498x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 27.6 ppb, 276x above the EWG health guideline of 0.1 ppb.
Contact VEOLIA WATER IDAHO
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 BOISE
Filters matched to the specific contaminants in this water supply.
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 59/100 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 |
2.71 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 678× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
29.9 ppb | 0.06 | — | — | — | — | — | 498× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
27.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 276× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
32.1 ppb | 0.15 | 80.0 | 100 | — | — | — | 214× over |
| Trichloroacetic acid Disinfection byproduct |
18.1 ppb | 0.1 | — | — | — | — | — | 181× over |
| Chloroform Disinfection byproduct |
33.0 ppb | 0.4 | — | — | — | — | — | 83× over |
| Dichloroacetic acid Disinfection byproduct |
13.8 ppb | 0.2 | — | — | — | — | — | 69× over |
| Bromodichloromethane Disinfection byproduct |
3.95 ppb | 0.06 | — | — | — | — | — | 66× over |
| Chromium (hexavalent) Heavy metal |
0.429 ppb | 0.02 | — | — | — | — | — | 21× over |
| Dibromoacetic acid Disinfection byproduct |
0.311 ppb | 0.03 | — | — | — | — | — | 10× over |
| Uranium Radiological |
4.47 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 10× over |
| Dibromochloromethane Disinfection byproduct |
0.954 ppb | 0.1 | — | — | — | — | — | 9.5× over |
| Nitrate Inorganic |
1.14 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 8.1× over |
| Radium, combined (-226 and -228) Radiological |
0.3 pCi/L | 0.05 | 5.0 | — | — | — | — | 5.9× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
0.175 ppb | 0.06 | 5.0 | — | — | — | — | 2.9× over |
| Bromoform Disinfection byproduct |
0.555 ppb | 0.5 | — | — | — | — | — | 1.1× over |
| Manganese Heavy metal |
51.7 ppb | 100.0 | — | 50 | 80 | — | — | Fails EU |
| Chlorate Disinfection byproduct |
60.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Trichloroethylene Volatile organic compound |
0.0412 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | Below guideline |
| Vanadium Other |
1.44 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
2.14 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Atrazine Pesticide/Herbicide |
0.00161 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Below guideline |
| Barium Heavy metal |
11.1 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.00542 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Selenium Heavy metal |
0.229 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.146 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Dichloromethane (methylene chloride) Volatile organic compound |
0.0084 ppb | 4.0 | 5.0 | — | — | — | — | Below guideline |
| Di(2-ethylhexyl) phthalate Semi-volatile organic compound |
0.00432 ppb | 3.0 | 6.0 | — | — | — | — | Below guideline |
| Strontium Radiological |
0.193 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethylene Volatile organic compound |
0.01 ppb | — | 7.0 | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.257 ppb | — | 100.0 | — | — | — | — | Below guideline |
| cis-1,2-Dichloroethylene Volatile organic compound |
0.0134 ppb | — | 70.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.479 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.0656 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
11.7 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.
VEOLIA WATER IDAHO service area
This water system serves 1 community in Ada County, Idaho. Click any city for its dedicated tap water quality page.
Find the right filter for BOISE water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.