Public water system · WY5600736
ActiveHogadon Ski Area
At a glance
Hogadon Ski Area (PWSID WY5600736) is an active transient non-community water system in Natrona County, Wyoming. It reports serving 504 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
504
Service connections
5
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Hogadon Ski Area compare with other water systems in Natrona County?
By EPA's size categories, Hogadon Ski Area is a small system (501 to 3,300 people). Natrona County has 48 active public water systems. Its population served is well below the county average of 1,680 people per system, and accounts for 0.6% of the 80,646 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 Hogadon Ski Area is about 3.5 times 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 Hogadon Ski Area?
EPA lists Hogadon Ski Area as owned by a local 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. 18 of the 48 active systems in Natrona County (38%) are also owned by a local government.
Does Hogadon Ski Area have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in October 2025. The violations listed here began between January 1999 and October 2025. By type: 9 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 9 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2018-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2008-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2006-07-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2000-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 11 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.
Hogadon Ski Area: frequently asked questions
Who runs Hogadon Ski Area?
Hogadon Ski Area (PWSID WY5600736) is a transient non-community water system owned by a local government. It is regulated by the WY state drinking water program.
How many people does Hogadon Ski Area serve?
Hogadon Ski Area reports serving 504 people through 5 service connections in Natrona County, Wyoming.
Where does Hogadon Ski Area 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 Hogadon Ski Area have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in October 2025. 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 Hogadon Ski Area'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 11 violations for this system; none is health-based, and the most recent began in October 2025. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Hogadon Ski Area's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hogadon Ski Area 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 Natrona County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Casper, City of | Natrona | 59,000 | Community | Purchased surface water |
| Mills, City of | Natrona | 4,050 | Community | Groundwater under influence of surface water |
| Bar Nunn, Town of | Natrona | 4,000 | Community | Purchased surface water |
| Evansville, Town of | Natrona | 2,873 | Community | Surface water |
| Vista West Water Company | Natrona | 1,600 | Community | Purchased surface water |
| Pioneer Water & Sewer District | Natrona | 1,500 | Community | Purchased 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, “Hogadon Ski Area, PWSID WY5600736, Wyoming”, https://aquacensus.com/water-systems/wyoming/hogadon-ski-area-wy5600736 (data as of October 1, 2026).