Tooele County, Utah — public water systems
At a glance
34 active public water systems are filed under Tooele County, Utah in EPA's SDWIS records, together reporting 75,542 people served. The largest is Tooele City Water System, which reports serving 37,100 people. 13 are community water systems serving people where they live; the other 21 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
34
Population served
75.5K
Community systems
13
Groundwater share
94.1%
How does Tooele County compare with other Utah counties?
Tooele County has the 12th-most active public water systems among the 78 counties listed for active Utah systems in EPA records; among the 35 with 3 or more systems, the median has 26. Its systems report 75,542 people served in total, the 7th-largest county figure in the state and 1.9% of the statewide total. The average system here reports serving 2,222 people, about 36% below the Utah average of 3,458. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Tooele County's drinking water come from?
By primary water source, Tooele County's active systems draw on groundwater (27, 79%), purchased groundwater (5, 15%) and surface water (2, 5.9%). Overall, 94% rely mainly on groundwater (including purchased groundwater) and 5.9% on surface water, compared with 87% and 13% across Utah. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Tooele City Water System, draws primarily on groundwater.
What kinds of water systems operate in Tooele County?
Tooele County's active systems break down as 13 community systems (38%), 9 non-transient non-community systems (26%) and 12 transient non-community systems (35%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (59%), local government (18%), federal government (18%) and state government (5.9%).
Water systems in Tooele County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Tooele City Water System | Tooele | 37,100 | Community | Groundwater |
| 2 | Grantsville City | Tooele | 16,284 | Community | Groundwater |
| 3 | Stansbury Park Improvement District | Tooele | 9,839 | Community | Groundwater |
| 4 | Oquirrh Mountain Water Co | Tooele | 2,500 | Community | Groundwater |
| 5 | Wendover City Water System | Tooele | 1,525 | Community | Surface water |
| 6 | Erda Acres Water Co | Tooele | 1,150 | Community | Groundwater |
| 7 | Dugway - Ditto Tech Center | Tooele | 920 | Non-transient non-community | Groundwater |
| 8 | South Rim Water System | Tooele | 834 | Community | Groundwater |
| 9 | Lincoln Culinary Water Assn | Tooele | 660 | Community | Groundwater |
| 10 | Stockton Town Water System | Tooele | 620 | Community | Surface water |
| 11 | Erda Ward | Tooele | 600 | Transient non-community | Groundwater |
| 12 | Dugway - English Village | Tooele | 600 | Community | Groundwater |
| 13 | Tooele Army Depot North | Tooele | 541 | Non-transient non-community | Groundwater |
| 14 | Vernon Waterworks Special Service Dist | Tooele | 302 | Community | Groundwater |
| 15 | Clean Harbors - Aragonite | Tooele | 250 | Non-transient non-community | Groundwater |
| 16 | Erda Drive in, LLC | Tooele | 209 | Transient non-community | Groundwater |
| 17 | Camp Wapiti (Elks) | Tooele | 200 | Transient non-community | Purchased groundwater |
| 18 | Dugway Ward | Tooele | 175 | Transient non-community | Groundwater |
| 19 | Rush Valley LDS Church | Tooele | 150 | Transient non-community | Groundwater |
| 20 | Morton Salt Inc. | Tooele | 150 | Non-transient non-community | Purchased groundwater |
| 21 | Simpson Springs Campground | Tooele | 150 | Transient non-community | Groundwater |
| 22 | Ophir Canyon Water Association | Tooele | 108 | Community | Groundwater |
| 23 | Tooele Army Depot-Deseret Chemical | Tooele | 100 | Non-transient non-community | Groundwater |
| 24 | Dugway - Carr Facility | Tooele | 100 | Transient non-community | Groundwater |
| 25 | Energy Solutions | Tooele | 96 | Non-transient non-community | Purchased groundwater |
| 26 | Utah Youth Village | Tooele | 90 | Non-transient non-community | Groundwater |
| 27 | Silver Spur Ranchos | Tooele | 80 | Community | Groundwater |
| 28 | Last Chance Ski Ranch | Tooele | 41 | Transient non-community | Groundwater |
| 29 | Clean Harbors - Grassy Mtn | Tooele | 32 | Non-transient non-community | Purchased groundwater |
| 30 | Grassy Mountain Rest Stop | Tooele | 31 | Transient non-community | Groundwater |
| 31 | Delle Auto Truck Stop | Tooele | 29 | Transient non-community | Groundwater |
| 32 | Ibapah School | Tooele | 26 | Non-transient non-community | Groundwater |
| 33 | Ibapah LDS Church | Tooele | 25 | Transient non-community | Groundwater |
| 34 | Salt Flats Highway Rest Stop | Tooele | 25 | Transient non-community | Purchased groundwater |
Tooele County water systems: frequently asked questions
How many public water systems are in Tooele County, Utah?
EPA's SDWIS records file 34 active public water systems under Tooele County, Utah: 13 community systems (38%), 9 non-transient non-community systems (26%) and 12 transient non-community systems (35%).
Who supplies drinking water in Tooele County, UT?
The largest community water systems filed under Tooele County are Tooele City Water System (37,100 people served), Grantsville City (16,284 people served) and Stansbury Park Improvement District (9,839 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Tooele County's drinking water come from groundwater or surface water?
Of the 34 active public water systems in Tooele County, 94% draw mainly on groundwater and 5.9% on surface water, counting purchased supplies. The largest system, Tooele City Water System, uses groundwater.
Where can I find a water quality report for Tooele County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 13 community systems are filed under Tooele County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Tooele County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Utah water systems
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Tooele County, Utah”, https://aquacensus.com/water-systems/utah/tooele (data as of October 1, 2026).