Public water system · UTAH23073
ActiveGrassy Mountain Rest Stop
At a glance
Grassy Mountain Rest Stop (PWSID UTAH23073) is an active transient non-community water system in Tooele County, Utah. It reports serving 31 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
31
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Grassy Mountain Rest Stop compare with other water systems in Tooele County?
By EPA's size categories, Grassy Mountain Rest Stop is a very small system (500 people or fewer). Tooele County has 34 active public water systems. Its population served is well below the county average of 2,222 people per system, and accounts for less than 0.1% of the 75,542 people reported by systems filed under the county. Across Utah, the 1,133 active systems average 3,458 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Grassy Mountain Rest Stop is well below that figure.
What does “transient non-community water system” mean?
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. Utah has 509 active transient non-community water systems, 45% of the state's 1,133 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 898 Utah systems (79%) list groundwater as their primary source.
Who owns and regulates Grassy Mountain Rest Stop?
EPA lists Grassy Mountain Rest Stop as owned by a state government. The UT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 2 of the 34 active systems in Tooele County (5.9%) are also owned by a state government.
Does Grassy Mountain Rest Stop have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022. The violations listed here began between October 2017 and October 2022. By type: 5 monitoring, 3 monitoring and reporting, 2 required treatment not met, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (7 of them). EPA lists 10 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2021-06-18 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2020-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2020-05-01 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2020-02-14 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2019-09-02 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2019-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2017-12-06 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-10-01 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Grassy Mountain Rest Stop: frequently asked questions
Who runs Grassy Mountain Rest Stop?
Grassy Mountain Rest Stop (PWSID UTAH23073) is a transient non-community water system owned by a state government. It is regulated by the UT state drinking water program.
How many people does Grassy Mountain Rest Stop serve?
Grassy Mountain Rest Stop reports serving 31 people through 4 service connections in Tooele County, Utah.
Where does Grassy Mountain Rest Stop get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Grassy Mountain Rest Stop have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Grassy Mountain Rest Stop's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2022. For current results, consult EPA ECHO, or the UT state drinking water program.
Where can I find Grassy Mountain Rest Stop's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Grassy Mountain Rest Stop is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Tooele County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tooele City Water System | Tooele | 37,100 | Community | Groundwater |
| Grantsville City | Tooele | 16,284 | Community | Groundwater |
| Stansbury Park Improvement District | Tooele | 9,839 | Community | Groundwater |
| Oquirrh Mountain Water Co | Tooele | 2,500 | Community | Groundwater |
| Wendover City Water System | Tooele | 1,525 | Community | Surface water |
| Erda Acres Water Co | Tooele | 1,150 | Community | Groundwater |
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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, “Grassy Mountain Rest Stop, PWSID UTAH23073, Utah”, https://aquacensus.com/water-systems/utah/grassy-mountain-rest-stop-utah23073 (data as of October 1, 2026).