Public water system · WY5600919
ActiveExxon Mobil - Shute Creek Gas Plant
At a glance
Exxon Mobil - Shute Creek Gas Plant (PWSID WY5600919) is an active non-transient non-community water system in Lincoln County, Wyoming. It reports serving 250 people through 10 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
10
Primary source
SW
Surface water
System type
NTNCWS
Non-transient non-community water system
System record
How does Exxon Mobil - Shute Creek Gas Plant compare with other water systems in Lincoln County?
By EPA's size categories, Exxon Mobil - Shute Creek Gas Plant is a very small system (500 people or fewer). Lincoln County has 44 active public water systems. Its population served is about 43% below the county average of 438 people per system, and accounts for 1.3% of the 19,264 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Exxon Mobil - Shute Creek Gas Plant is about 42% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Wyoming has 91 active non-transient non-community water systems, 12% of the state's 775 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 50 Wyoming systems (6.5%) list surface water as their primary source.
Who owns and regulates Exxon Mobil - Shute Creek Gas Plant?
EPA lists Exxon Mobil - Shute Creek Gas Plant 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. 22 of the 44 active systems in Lincoln County (50%) are also privately owned.
Does Exxon Mobil - Shute Creek Gas Plant have drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2026. The violations listed here began between April 2024 and January 2026. By type: 7 contaminant level above the legal limit, 3 required treatment not met and 2 monitoring and reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (5 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2026-01-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2025-10-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2024-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2024-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2024-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2024-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2024-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2024-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | 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.
Exxon Mobil - Shute Creek Gas Plant: frequently asked questions
Who runs Exxon Mobil - Shute Creek Gas Plant?
Exxon Mobil - Shute Creek Gas Plant (PWSID WY5600919) is a non-transient non-community water system privately owned. It is regulated by the WY state drinking water program.
How many people does Exxon Mobil - Shute Creek Gas Plant serve?
Exxon Mobil - Shute Creek Gas Plant reports serving 250 people through 10 service connections in Lincoln County, Wyoming.
Where does Exxon Mobil - Shute Creek Gas Plant get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Exxon Mobil - Shute Creek Gas Plant have any drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in January 2026. 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 Exxon Mobil - Shute Creek Gas Plant'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, 10 are health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Exxon Mobil - Shute Creek Gas Plant's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Exxon Mobil - Shute Creek Gas Plant is a non-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 Lincoln County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kemmerer-Diamondville Jpb | Lincoln | 3,348 | Community | Surface water |
| Star Valley Ranch, Town of | Lincoln | 2,030 | Community | Groundwater |
| Afton, Board of Pub Utilities | Lincoln | 2,000 | Community | Groundwater |
| Leisure Valley Inc./ Star Valley Rv Park | Lincoln | 1,910 | Community | Groundwater |
| Alpine, Town of | Lincoln | 1,300 | Community | Groundwater |
| Wy Dot-Star Valley Rest Area | Lincoln + 1 more | 1,260 | 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, “Exxon Mobil - Shute Creek Gas Plant, PWSID WY5600919, Wyoming”, https://aquacensus.com/water-systems/wyoming/exxon-mobil-shute-creek-gas-plant-wy5600919 (data as of October 1, 2026).