Public water system · WY5601567
ActiveWy Dot-Highway 339 Port of Entry
At a glance
Wy Dot-Highway 339 Port of Entry (PWSID WY5601567) is an active transient non-community water system in Sheridan County, Wyoming. It reports serving 168 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
168
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Wy Dot-Highway 339 Port of Entry compare with other water systems in Sheridan County?
By EPA's size categories, Wy Dot-Highway 339 Port of Entry is a very small system (500 people or fewer). Sheridan County has 21 active public water systems. Its population served is well below the county average of 1,322 people per system, and accounts for 0.6% of the 27,770 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 Wy Dot-Highway 339 Port of Entry is about 17% 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 Wy Dot-Highway 339 Port of Entry?
EPA lists Wy Dot-Highway 339 Port of Entry as owned by a state 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. 1 of the 21 active systems in Sheridan County (4.8%) are also owned by a state government.
Does Wy Dot-Highway 339 Port of Entry have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2011. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2011-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
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.
Wy Dot-Highway 339 Port of Entry: frequently asked questions
Who runs Wy Dot-Highway 339 Port of Entry?
Wy Dot-Highway 339 Port of Entry (PWSID WY5601567) is a transient non-community water system owned by a state government. It is regulated by the WY state drinking water program.
How many people does Wy Dot-Highway 339 Port of Entry serve?
Wy Dot-Highway 339 Port of Entry reports serving 168 people through 2 service connections in Sheridan County, Wyoming.
Where does Wy Dot-Highway 339 Port of Entry 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 Wy Dot-Highway 339 Port of Entry have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2011. 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 Wy Dot-Highway 339 Port of Entry'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 not health-based, and the most recent began in October 2011. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find Wy Dot-Highway 339 Port of Entry's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Wy Dot-Highway 339 Port of Entry 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 Sheridan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sheridan, City of | Sheridan | 22,700 | Community | Surface water |
| Ranchester, Town of | Sheridan | 1,297 | Community | Surface water |
| Dayton, Town of | Sheridan | 824 | Community | Surface water |
| Veterans Administration Medical Center | Sheridan | 685 | Community | Surface water |
| Ucross Guest Ranch | Sheridan | 441 | Transient non-community | Groundwater |
| Downer Neighborhood I&S District | Sheridan | 400 | 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, “Wy Dot-Highway 339 Port of Entry, PWSID WY5601567, Wyoming”, https://aquacensus.com/water-systems/wyoming/wy-dot-highway-339-port-of-entry-wy5601567 (data as of October 1, 2026).