Water Quality Report · Updated October 07, 2026
GRANGER-HUNTER IMPROVEMENT DISTRICT
GRANGER-HUNTER IMPROVEMENT DISTRICT delivers tap water graded D (59/100) by TapWaterSafety.org. The utility serves approximately 121,083 residents in SALT LAKE CITY, Utah using surface water (purchased). The most significant water quality concerns are: Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 801-968-3551.
Is SALT LAKE CITY tap water safe to drink?
GRANGER-HUNTER IMPROVEMENT DISTRICT 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 121,083 residents in SALT LAKE CITY, drawing from surface water (purchased).
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Haloacetic acids (HAA5), Bromodichloromethane, Trichloroacetic acid, Chloroform, Dichloroacetic acid, Dibromochloromethane, Nitrate and nitrite*, Nitrate*, Chromium (hexavalent), Radium, combined (-226 and -228), Uranium*, Dibromoacetic acid. 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 GRANGER-HUNTER IMPROVEMENT DISTRICT (system ID UTAH18007) 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 SALT LAKE CITY residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for GRANGER-HUNTER IMPROVEMENT DISTRICT.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 2.31 ppb, 578x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 26.7 ppb, 445x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 40.8 ppb, 272x above the EWG health guideline of 0.15 ppb.
Contact GRANGER-HUNTER IMPROVEMENT DISTRICT
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 SALT LAKE CITY
Filters matched to the specific contaminants in this water supply.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
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 |
2.31 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 578× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
26.7 ppb | 0.06 | — | — | — | — | — | 445× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
40.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 272× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
21.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 212× over |
| Bromodichloromethane Disinfection byproduct |
8.83 ppb | 0.06 | — | — | — | — | — | 147× over |
| Trichloroacetic acid Disinfection byproduct |
10.2 ppb | 0.1 | — | — | — | — | — | 102× over |
| Chloroform Disinfection byproduct |
25.5 ppb | 0.4 | — | — | — | — | — | 64× over |
| Dichloroacetic acid Disinfection byproduct |
10.9 ppb | 0.2 | — | — | — | — | — | 55× over |
| Dibromochloromethane Disinfection byproduct |
3.0 ppb | 0.1 | — | — | — | — | — | 30× over |
| Nitrate and nitrite* Inorganic |
1.49 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 11× over |
| Nitrate* Inorganic |
1.38 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 9.9× over |
| Chromium (hexavalent) Heavy metal |
0.145 ppb | 0.02 | — | — | — | — | — | 7.2× over |
| Radium, combined (-226 and -228) Radiological |
0.25 pCi/L | 0.05 | 5.0 | — | — | — | — | 4.9× over |
| Uranium* Radiological |
2.04 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 4.8× over |
| Dibromoacetic acid Disinfection byproduct |
0.101 ppb | 0.03 | — | — | — | — | — | 3.4× over |
| Chlorate Disinfection byproduct |
99.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
19.2 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Barium Heavy metal |
56.9 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
1.58 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.0374 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
2.62 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
0.0625 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Monochloroacetic acid* Disinfection byproduct |
0.0933 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.688 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.194 ppb | — | — | — | — | — | — | Below guideline |
| Cyanide Inorganic |
0.313 ppb | — | 200.0 | 50 | 70 | 150 | — | Below guideline |
| Fluoride Inorganic |
0.465 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.0394 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
16.0 ppb | — | — | — | — | — | — | Below guideline |
| o-toluidine Other |
0.00163 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.
GRANGER-HUNTER IMPROVEMENT DISTRICT service area
This water system serves 1 community in Salt Lake County, Utah. Click any city for its dedicated tap water quality page.
Find the right filter for SALT LAKE CITY water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.