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Public water system · WY5680080

Active

Ynp-Lamar Ranger Station

At a glance

Ynp-Lamar Ranger Station (PWSID WY5680080) is an active transient non-community water system in Teton County, Wyoming. It reports serving 104 people through 8 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's Safe Drinking Water Act records list no violations for this system.

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

Population served

104

Service connections

8

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWY5680080
System typeTransient non-community water system
Activity statusActive
Population served104
Service connections8
Primary water sourceGroundwater
Owner typeFederal government
Primacy agencyWY state drinking water program
City servedYellowstone Np
StateWyoming
ZIP—
CountyTeton County

How does Ynp-Lamar Ranger Station compare with other water systems in Teton County?

By EPA's size categories, Ynp-Lamar Ranger Station 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 0.1% 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 Ynp-Lamar Ranger Station is about 28% 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 Ynp-Lamar Ranger Station?

EPA lists Ynp-Lamar Ranger Station 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 Ynp-Lamar Ranger Station have drinking water violations?

No SDWA violations on record.

EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Ynp-Lamar Ranger Station. For the latest compliance status, check EPA ECHO for current compliance history.

Ynp-Lamar Ranger Station: frequently asked questions

Who runs Ynp-Lamar Ranger Station?

Ynp-Lamar Ranger Station (PWSID WY5680080) 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 Ynp-Lamar Ranger Station serve?

Ynp-Lamar Ranger Station reports serving 104 people through 8 service connections in Teton County, Wyoming.

Where does Ynp-Lamar Ranger Station 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 Ynp-Lamar Ranger Station have any drinking water violations?

EPA's Safe Drinking Water Act records list no violations for this system.

Is Ynp-Lamar Ranger Station'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the WY state drinking water program.

Where can I find Ynp-Lamar Ranger Station's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Ynp-Lamar Ranger Station 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, “Ynp-Lamar Ranger Station, PWSID WY5680080, Wyoming”, https://aquacensus.com/water-systems/wyoming/ynp-lamar-ranger-station-wy5680080 (data as of October 1, 2026).