Public water system · ID6120016
ActiveInl Nrf
At a glance
Inl Nrf (PWSID ID6120016) is an active non-transient non-community water system in Butte County, Idaho. It reports serving 1,765 people through 29 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 2 violations for this system; all are health-based, and the most recent began in April 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,765
Service connections
29
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Inl Nrf compare with other water systems in Butte County?
By EPA's size categories, Inl Nrf is a small system (501 to 3,300 people). Butte County has 15 active public water systems, and Inl Nrf is the largest of them by population served. Its population served is about 3.9 times the county average of 455 people per system, and accounts for 26% of the 6,817 people reported by systems filed under the county. Across Idaho, the 1,961 active systems average 899 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Inl Nrf is about 4.1 times 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. Idaho has 242 active non-transient non-community water systems, 12% of the state's 1,961 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,861 Idaho systems (95%) list groundwater as their primary source.
Who owns and regulates Inl Nrf?
EPA lists Inl Nrf as owned by the federal government. The ID state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 15 active systems in Butte County (67%) are also owned by the federal government.
Does Inl Nrf have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in April 2003. The violations listed here began between April 2003 and April 2003. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (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 |
|---|---|---|---|---|
| 2003-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2003-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Inl Nrf: frequently asked questions
Who runs Inl Nrf?
Inl Nrf (PWSID ID6120016) is a non-transient non-community water system owned by the federal government. It is regulated by the ID state drinking water program.
How many people does Inl Nrf serve?
Inl Nrf reports serving 1,765 people through 29 service connections in Butte County, Idaho.
Where does Inl Nrf 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 Inl Nrf have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in April 2003. 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 Inl Nrf'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; all are health-based, and the most recent began in April 2003. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find Inl Nrf's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Inl Nrf 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 Butte County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Arco City of | Butte | 1,080 | Community | Groundwater |
| Inl Intec | Butte | 866 | Non-transient non-community | Groundwater |
| Usps Craters of the Moon National Park | Butte | 616 | Transient non-community | Groundwater |
| Inl Atr Complex | Butte | 605 | Non-transient non-community | Groundwater |
| Inl Cfa | Butte | 585 | Non-transient non-community | Groundwater |
| Inl Rwmc | Butte | 415 | 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, “Inl Nrf, PWSID ID6120016, Idaho”, https://aquacensus.com/water-systems/idaho/inl-nrf-id6120016 (data as of October 1, 2026).