Public water system · WY5601713
ActiveTen Sleep Rock Ranch
At a glance
Ten Sleep Rock Ranch (PWSID WY5601713) is an active transient non-community water system in Washakie County, Wyoming. It reports serving 35 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is health-based, and the most recent began in September 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
35
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Ten Sleep Rock Ranch compare with other water systems in Washakie County?
By EPA's size categories, Ten Sleep Rock Ranch is a very small system (500 people or fewer). Washakie County has 13 active public water systems. Its population served is well below the county average of 552 people per system, and accounts for 0.5% of the 7,172 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 Ten Sleep Rock Ranch 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. 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 Ten Sleep Rock Ranch?
EPA lists Ten Sleep Rock Ranch 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. 8 of the 13 active systems in Washakie County (62%) are also privately owned.
Does Ten Sleep Rock Ranch have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in September 2018. By type: 1 required treatment not met. The contaminant or rule involved is Surface Water Treatment Rule. EPA lists 1 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
The one violation in EPA's records.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.
Ten Sleep Rock Ranch: frequently asked questions
Who runs Ten Sleep Rock Ranch?
Ten Sleep Rock Ranch (PWSID WY5601713) is a transient non-community water system privately owned. It is regulated by the WY state drinking water program.
How many people does Ten Sleep Rock Ranch serve?
Ten Sleep Rock Ranch reports serving 35 people through 2 service connections in Washakie County, Wyoming.
Where does Ten Sleep Rock Ranch 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 Ten Sleep Rock Ranch have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in September 2018. 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 Ten Sleep Rock Ranch'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 one violation for this system; it is health-based, and the most recent began in September 2018. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Ten Sleep Rock Ranch's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ten Sleep Rock Ranch 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 Washakie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Worland Utilities Commission | Washakie | 4,787 | Community | Groundwater |
| Washakie Rural Water System | Washakie | 990 | Community | Purchased groundwater |
| Ten Sleep, Town of | Washakie | 400 | Community | Groundwater |
| Circle J Ranch | Washakie | 200 | Transient non-community | Groundwater |
| Red Vista & Ten Sleep Brewery Ws | Washakie | 173 | Transient non-community | Groundwater |
| Bighorn Resort LLC | Washakie + 1 more | 154 | 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, “Ten Sleep Rock Ranch, PWSID WY5601713, Wyoming”, https://aquacensus.com/water-systems/wyoming/ten-sleep-rock-ranch-wy5601713 (data as of October 1, 2026).