Public water system · ID5270037
ActiveNps Minidoka Historical Site
At a glance
Nps Minidoka Historical Site (PWSID ID5270037) is an active transient non-community water system in Jerome County, Idaho. It reports serving 75 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
5
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Nps Minidoka Historical Site compare with other water systems in Jerome County?
By EPA's size categories, Nps Minidoka Historical Site is a very small system (500 people or fewer). Jerome County has 26 active public water systems. Its population served is well below the county average of 686 people per system, and accounts for 0.4% of the 17,835 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 Nps Minidoka Historical Site is about half of 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 Nps Minidoka Historical Site?
EPA lists Nps Minidoka Historical Site 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. 1 of the 26 active systems in Jerome County (3.8%) are also owned by the federal government.
Does Nps Minidoka Historical Site have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. The violations listed here began between April 2024 and January 2026. By type: 11 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is E. coli (11 of them). EPA lists 8 as archived and 4 as resolved. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-09-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2025-08-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2025-07-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2025-05-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2025-02-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2024-12-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2024-11-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Archived |
| 2024-07-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2024-06-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2024-05-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2024-04-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
The 12 most recent 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.
Nps Minidoka Historical Site: frequently asked questions
Who runs Nps Minidoka Historical Site?
Nps Minidoka Historical Site (PWSID ID5270037) 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 Nps Minidoka Historical Site serve?
Nps Minidoka Historical Site reports serving 75 people through 5 service connections in Jerome County, Idaho.
Where does Nps Minidoka Historical Site 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 Nps Minidoka Historical Site have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. 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 Nps Minidoka Historical Site'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find Nps Minidoka Historical Site's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Nps Minidoka Historical Site 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 Jerome County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jerome City of | Jerome | 13,135 | Community | Groundwater |
| Hazelton City of | Jerome | 899 | Community | Groundwater |
| Valley School | Jerome | 640 | Non-transient non-community | Groundwater |
| True West Beef | Jerome | 490 | Non-transient non-community | Groundwater |
| Eden City of | Jerome | 411 | Community | Groundwater |
| Jerome Cheese Company | Jerome | 400 | 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, “Nps Minidoka Historical Site, PWSID ID5270037, Idaho”, https://aquacensus.com/water-systems/idaho/nps-minidoka-historical-site-id5270037 (data as of October 1, 2026).