Public water system · MT0005043
ActiveRocking J Ranch East
At a glance
Rocking J Ranch East (PWSID MT0005043) is an active transient non-community water system in Granite County, Montana. It reports serving 25 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Rocking J Ranch East compare with other water systems in Granite County?
By EPA's size categories, Rocking J Ranch East is a very small system (500 people or fewer). Granite County has 21 active public water systems. Its population served is well below the county average of 380 people per system, and accounts for 0.3% of the 7,984 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 Rocking J Ranch East is well 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 Rocking J Ranch East?
EPA lists Rocking J Ranch East 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. 12 of the 21 active systems in Granite County (57%) are also privately owned.
Does Rocking J Ranch East have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Rocking J Ranch East. For the latest compliance status, check EPA ECHO for current compliance history.
Rocking J Ranch East: frequently asked questions
Who runs Rocking J Ranch East?
Rocking J Ranch East (PWSID MT0005043) is a transient non-community water system privately owned. It is regulated by the MT state drinking water program.
How many people does Rocking J Ranch East serve?
Rocking J Ranch East reports serving 25 people through 3 service connections in Granite County, Montana.
Where does Rocking J Ranch East 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 Rocking J Ranch East have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Rocking J Ranch East'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the MT state drinking water program.
Where can I find Rocking J Ranch East's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rocking J Ranch East 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 Granite County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bearmouth Rest Stop Westbound | Granite | 2,000 | Transient non-community | Groundwater |
| Bearmouth Rest Stop Eastbound | Granite | 2,000 | Transient non-community | Groundwater |
| Philipsburg Town of | Granite | 1,360 | Community | Surface water |
| Fics Kwik Six | Granite | 405 | Transient non-community | Groundwater |
| Discovery Ski Area | Granite | 401 | Transient non-community | Groundwater |
| Parkers | Granite | 256 | Transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Rocking J Ranch East, PWSID MT0005043, Montana”, https://aquacensus.com/water-systems/montana/rocking-j-ranch-east-mt0005043 (data as of October 1, 2026).