Public water system · WY5601526
ActiveGranite Hoback Ranch, LLC
At a glance
Granite Hoback Ranch, LLC (PWSID WY5601526) is an active transient non-community water system in Teton County, Wyoming. It reports serving 65 people through 11 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in November 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
65
Service connections
11
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Granite Hoback Ranch, LLC compare with other water systems in Teton County?
By EPA's size categories, Granite Hoback Ranch, LLC is a very small system (500 people or fewer). Teton County has 112 active public water systems. Its population served is well below the county average of 697 people per system, and accounts for less than 0.1% of the 78,057 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Granite Hoback Ranch, LLC is about half of 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. Wyoming has 352 active transient non-community water systems, 45% of the state's 775 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 585 Wyoming systems (75%) list groundwater as their primary source.
Who owns and regulates Granite Hoback Ranch, LLC?
EPA lists Granite Hoback Ranch, LLC as privately owned. The WY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 69 of the 112 active systems in Teton County (62%) are also privately owned.
Does Granite Hoback Ranch, LLC have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in November 2025. The violations listed here began between January 2010 and November 2025. By type: 2 monitoring, 2 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 4 as resolved and 1 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 |
|---|---|---|---|---|
| 2025-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2017-01-01 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2012-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 5 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.
Granite Hoback Ranch, LLC: frequently asked questions
Who runs Granite Hoback Ranch, LLC?
Granite Hoback Ranch, LLC (PWSID WY5601526) is a transient non-community water system privately owned. It is regulated by the WY state drinking water program.
How many people does Granite Hoback Ranch, LLC serve?
Granite Hoback Ranch, LLC reports serving 65 people through 11 service connections in Teton County, Wyoming.
Where does Granite Hoback Ranch, LLC 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 Granite Hoback Ranch, LLC have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in November 2025. 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 Granite Hoback Ranch, LLC'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. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in November 2025. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Granite Hoback Ranch, LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Granite Hoback Ranch, LLC 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 Teton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jackson, Town of | Teton | 24,760 | Community | Groundwater |
| Ynp-Old Faithful | Teton | 7,675 | Community | Surface water |
| Ynp - Lake Village | Teton | 5,925 | Community | Groundwater under influence of surface water |
| Gtnp-Colter Bay Village | Teton | 4,514 | Community | Groundwater |
| Ynp-Grant Village | Teton | 3,513 | Transient non-community | Surface water |
| Grand Targhee Resort | Teton | 2,500 | Non-transient non-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, “Granite Hoback Ranch, LLC, PWSID WY5601526, Wyoming”, https://aquacensus.com/water-systems/wyoming/granite-hoback-ranch-llc-wy5601526 (data as of October 1, 2026).