Public water system · WY5600874
ActiveNorth Antelope Coal Mine
At a glance
North Antelope Coal Mine (PWSID WY5600874) is an active non-transient non-community water system in Campbell County, Wyoming. It reports serving 170 people through 7 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1993.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
170
Service connections
7
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does North Antelope Coal Mine compare with other water systems in Campbell County?
By EPA's size categories, North Antelope Coal Mine is a very small system (500 people or fewer). Campbell County has 68 active public water systems. Its population served is well below the county average of 779 people per system, and accounts for 0.3% of the 52,981 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 North Antelope Coal Mine is about 60% 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 North Antelope Coal Mine?
EPA lists North Antelope Coal Mine 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. 51 of the 68 active systems in Campbell County (75%) are also privately owned.
Does North Antelope Coal Mine have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1993. The violations listed here began between October 1983 and January 1993. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 2 as archived. 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 |
|---|---|---|---|---|
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1983-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
All 2 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.
North Antelope Coal Mine: frequently asked questions
Who runs North Antelope Coal Mine?
North Antelope Coal Mine (PWSID WY5600874) is a non-transient non-community water system privately owned. It is regulated by the WY state drinking water program.
How many people does North Antelope Coal Mine serve?
North Antelope Coal Mine reports serving 170 people through 7 service connections in Campbell County, Wyoming.
Where does North Antelope Coal Mine 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 North Antelope Coal Mine have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1993. 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 North Antelope Coal Mine'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 2 violations for this system; none is health-based, and the most recent began in January 1993. For current results, consult EPA ECHO, or the WY state drinking water program.
Where can I find North Antelope Coal Mine's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. North Antelope Coal Mine 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 Campbell County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Gillette, City of | Campbell | 32,222 | Community | Groundwater |
| Wright Water & Sewer District | Campbell | 3,207 | Community | Groundwater |
| Sleepy Hollow Subdivision | Campbell | 2,400 | Community | Groundwater |
| Antelope Valley I&S District (Avisd) | Campbell | 1,280 | Community | Groundwater |
| Fox Park Subdivision | Campbell | 843 | Community | Groundwater |
| Heritage Village Subdivision | Campbell | 750 | 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, “North Antelope Coal Mine, PWSID WY5600874, Wyoming”, https://aquacensus.com/water-systems/wyoming/north-antelope-coal-mine-wy5600874 (data as of October 1, 2026).