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Public water system · WY5680110

Active

Gtnp- Triangle X Ranch

At a glance

Gtnp- Triangle X Ranch (PWSID WY5680110) is an active transient non-community water system in Teton County, Wyoming. It reports serving 166 people through 45 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list one violation for this system; it is health-based, and the most recent began in August 2007.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

166

Service connections

45

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWY5680110
System typeTransient non-community water system
Activity statusActive
Population served166
Service connections45
Primary water sourceGroundwater
Owner typeFederal government
Primacy agencyWY state drinking water program
City servedMoose
StateWyoming
ZIP—
CountyTeton County

How does Gtnp- Triangle X Ranch compare with other water systems in Teton County?

By EPA's size categories, Gtnp- Triangle X Ranch 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 0.2% 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 Gtnp- Triangle X Ranch is about 15% above 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 Gtnp- Triangle X Ranch?

EPA lists Gtnp- Triangle X Ranch as owned by the federal government. 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. 32 of the 112 active systems in Teton County (29%) are also owned by the federal government.

Does Gtnp- Triangle X Ranch have drinking water violations?

EPA's records list one violation for this system; it is health-based, and the most recent began in August 2007. By type: 1 required treatment not met. The contaminant or rule involved is Interim Enhanced 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.

BeganViolationContaminant or ruleHealth-basedStatus
2007-08-01Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43Interim Enhanced Surface Water Treatment Rulecode 0300YesResolved

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.

Gtnp- Triangle X Ranch: frequently asked questions

Who runs Gtnp- Triangle X Ranch?

Gtnp- Triangle X Ranch (PWSID WY5680110) is a transient non-community water system owned by the federal government. It is regulated by the WY state drinking water program.

How many people does Gtnp- Triangle X Ranch serve?

Gtnp- Triangle X Ranch reports serving 166 people through 45 service connections in Teton County, Wyoming.

Where does Gtnp- Triangle X 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 Gtnp- Triangle X 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 August 2007. 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 Gtnp- Triangle X 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 August 2007. For current results, consult EPA ECHO, or the WY state drinking water program.

Where can I find Gtnp- Triangle X Ranch's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Gtnp- Triangle X 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 Teton County

Water systemCountyPopulation servedTypeSource
Jackson, Town ofTeton24,760CommunityGroundwater
Ynp-Old FaithfulTeton7,675CommunitySurface water
Ynp - Lake VillageTeton5,925CommunityGroundwater under influence of surface water
Gtnp-Colter Bay VillageTeton4,514CommunityGroundwater
Ynp-Grant VillageTeton3,513Transient non-communitySurface water
Grand Targhee ResortTeton2,500Non-transient non-communityGroundwater

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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, “Gtnp- Triangle X Ranch, PWSID WY5680110, Wyoming”, https://aquacensus.com/water-systems/wyoming/gtnp-triangle-x-ranch-wy5680110 (data as of October 1, 2026).