Public water system · MT0002918
ActiveBig Sky Camp and Rv Park
At a glance
Big Sky Camp and Rv Park (PWSID MT0002918) is an active transient non-community water system in Custer County, Montana. It reports serving 56 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2001.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
56
Service connections
4
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Big Sky Camp and Rv Park compare with other water systems in Custer County?
By EPA's size categories, Big Sky Camp and Rv Park is a very small system (500 people or fewer). Custer County has 11 active public water systems, and Big Sky Camp and Rv Park is the 5th-largest of them by population served. Its population served is well below the county average of 962 people per system, and accounts for 0.5% of the 10,579 people reported by systems filed under the county. Across Montana, the 2,378 active systems average 489 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Big Sky Camp and Rv Park is about 61% below 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. Montana has 1,206 active transient non-community water systems, 51% of the state's 2,378 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,994 Montana systems (84%) list groundwater as their primary source.
Who owns and regulates Big Sky Camp and Rv Park?
EPA lists Big Sky Camp and Rv Park as privately owned. The MT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 11 active systems in Custer County (55%) are also privately owned.
Does Big Sky Camp and Rv Park have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2001. The violations listed here began between October 1982 and January 2001. By type: 4 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 as resolved and 1 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 |
|---|---|---|---|---|
| 2001-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 1999-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1982-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
All 4 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.
Big Sky Camp and Rv Park: frequently asked questions
Who runs Big Sky Camp and Rv Park?
Big Sky Camp and Rv Park (PWSID MT0002918) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Big Sky Camp and Rv Park serve?
Big Sky Camp and Rv Park reports serving 56 people through 4 service connections in Custer County, Montana.
Where does Big Sky Camp and Rv Park 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 Big Sky Camp and Rv Park have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2001. 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 Big Sky Camp and Rv Park'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 4 violations for this system; none is health-based, and the most recent began in January 2001. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Big Sky Camp and Rv Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Big Sky Camp and Rv Park 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 Custer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Miles City City of | Custer | 9,565 | Community | Surface water |
| Custer Co Water and Sewer Dist | Custer | 480 | Community | Purchased surface water |
| Pine Hills Youth Correct Facil | Custer | 193 | Community | Purchased surface water |
| Kinsey School District 63 | Custer | 86 | Non-transient non-community | Groundwater |
| Palisades Apartments | Custer | 50 | Community | Groundwater |
| Kircher School Dist 03 | Custer | 45 | Non-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, “Big Sky Camp and Rv Park, PWSID MT0002918, Montana”, https://aquacensus.com/water-systems/montana/big-sky-camp-and-rv-park-mt0002918 (data as of October 1, 2026).