Public water system · WY5601664
ActiveUr-Energy USA, Lost Creek Isr
At a glance
Ur-Energy USA, Lost Creek Isr (PWSID WY5601664) is an active non-transient non-community water system in Sweetwater County, Wyoming. It reports serving 60 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Ur-Energy USA, Lost Creek Isr compare with other water systems in Sweetwater County?
By EPA's size categories, Ur-Energy USA, Lost Creek Isr is a very small system (500 people or fewer). Sweetwater County has 44 active public water systems. Its population served is well below the county average of 1,215 people per system, and accounts for 0.1% of the 53,453 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 Ur-Energy USA, Lost Creek Isr is well 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. 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 Ur-Energy USA, Lost Creek Isr?
EPA lists Ur-Energy USA, Lost Creek Isr 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. 30 of the 44 active systems in Sweetwater County (68%) are also privately owned.
Does Ur-Energy USA, Lost Creek Isr have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2024. The violations listed here began between January 2023 and March 2024. By type: 11 monitoring and reporting and 1 monitoring. The contaminants or rules involved are Revised Total Coliform Rule, Dichloromethane, o-Dichlorobenzene and p-Dichlorobenzene. 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 |
|---|---|---|---|---|
| 2024-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | 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.
Ur-Energy USA, Lost Creek Isr: frequently asked questions
Who runs Ur-Energy USA, Lost Creek Isr?
Ur-Energy USA, Lost Creek Isr (PWSID WY5601664) is a non-transient non-community water system privately owned. It is regulated by the WY state drinking water program.
How many people does Ur-Energy USA, Lost Creek Isr serve?
Ur-Energy USA, Lost Creek Isr reports serving 60 people through 2 service connections in Sweetwater County, Wyoming.
Where does Ur-Energy USA, Lost Creek Isr 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 Ur-Energy USA, Lost Creek Isr have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2024. 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 Ur-Energy USA, Lost Creek Isr'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, none is health-based, and the most recent began in March 2024. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Ur-Energy USA, Lost Creek Isr's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ur-Energy USA, Lost Creek Isr 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 Sweetwater County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rock Springs, City of | Sweetwater | 24,000 | Community | Purchased surface water |
| Green River, City of | Sweetwater | 10,500 | Community | Purchased surface water |
| White Mountain W&S District | Sweetwater | 3,000 | Community | Purchased surface water |
| Little America Hotels & Resorts, Inc.- Wy | Sweetwater | 2,004 | Community | Surface water |
| Pioneer Mobile Home Park | Sweetwater | 1,000 | Community | Purchased surface water |
| We Soda Alkali, LLC | Sweetwater | 950 | Non-transient non-community | Surface water |
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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, “Ur-Energy USA, Lost Creek Isr, PWSID WY5601664, Wyoming”, https://aquacensus.com/water-systems/wyoming/ur-energy-usa-lost-creek-isr-wy5601664 (data as of October 1, 2026).