Public water system · ID6120023
ActiveUsps Craters of the Moon National Park
At a glance
Usps Craters of the Moon National Park (PWSID ID6120023) is an active transient non-community water system in Butte County, Idaho. It reports serving 616 people through 19 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 1993.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
616
Service connections
19
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Usps Craters of the Moon National Park compare with other water systems in Butte County?
By EPA's size categories, Usps Craters of the Moon National Park is a small system (501 to 3,300 people). Butte County has 15 active public water systems, and Usps Craters of the Moon National Park is the 4th-largest of them by population served. Its population served is about 36% above the county average of 455 people per system, and accounts for 9% 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 transient non-community water system reports serving 144 people, so Usps Craters of the Moon National Park is about 4.3 times 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. Idaho has 954 active transient non-community water systems, 49% 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 Usps Craters of the Moon National Park?
EPA lists Usps Craters of the Moon National Park 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 Usps Craters of the Moon National Park have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 1993. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 1993-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Usps Craters of the Moon National Park: frequently asked questions
Who runs Usps Craters of the Moon National Park?
Usps Craters of the Moon National Park (PWSID ID6120023) is a transient non-community water system owned by the federal government. It is regulated by the ID state drinking water program.
How many people does Usps Craters of the Moon National Park serve?
Usps Craters of the Moon National Park reports serving 616 people through 19 service connections in Butte County, Idaho.
Where does Usps Craters of the Moon National 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 Usps Craters of the Moon National Park 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 December 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 Usps Craters of the Moon National 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 one violation for this system; it is not health-based, and the most recent began in December 1993. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find Usps Craters of the Moon National Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usps Craters of the Moon National 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 Butte County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Inl Nrf | Butte | 1,765 | Non-transient non-community | Groundwater |
| Arco City of | Butte | 1,080 | Community | Groundwater |
| Inl Intec | Butte | 866 | Non-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, “Usps Craters of the Moon National Park, PWSID ID6120023, Idaho”, https://aquacensus.com/water-systems/idaho/usps-craters-of-the-moon-national-park-id6120023 (data as of October 1, 2026).