Public water system · ID6390030
ActiveItd Massacre Rocks Rest Area
At a glance
Itd Massacre Rocks Rest Area (PWSID ID6390030) is an active transient non-community water system in Power County, Idaho. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Itd Massacre Rocks Rest Area compare with other water systems in Power County?
By EPA's size categories, Itd Massacre Rocks Rest Area is a very small system (500 people or fewer). Power County has 16 active public water systems. Its population served is well below the county average of 423 people per system, and accounts for 0.4% of the 6,760 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 Itd Massacre Rocks Rest Area 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. 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 Itd Massacre Rocks Rest Area?
EPA lists Itd Massacre Rocks Rest Area as owned by a state 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. 3 of the 16 active systems in Power County (19%) are also owned by a state government.
Does Itd Massacre Rocks Rest Area have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024. The violations listed here began between April 1994 and April 2024. By type: 7 monitoring and reporting, 2 monitoring, 2 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 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 |
|---|---|---|---|---|
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2022-01-27 | Required treatment not metTreatment Technique, Level 2 Assessment (RTCR) · code 2B | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2021-12-20 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2021-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2017-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2001-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1999-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1999-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
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.
Itd Massacre Rocks Rest Area: frequently asked questions
Who runs Itd Massacre Rocks Rest Area?
Itd Massacre Rocks Rest Area (PWSID ID6390030) is a transient non-community water system owned by a state government. It is regulated by the ID state drinking water program.
How many people does Itd Massacre Rocks Rest Area serve?
Itd Massacre Rocks Rest Area reports serving 25 people through 1 service connection in Power County, Idaho.
Where does Itd Massacre Rocks Rest Area 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 Itd Massacre Rocks Rest Area have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in April 2024. 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 Itd Massacre Rocks Rest Area'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, 3 are health-based, and the most recent began in April 2024. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find Itd Massacre Rocks Rest Area's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Itd Massacre Rocks Rest Area 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 Power County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| American Falls City of | Power | 4,863 | Community | Groundwater |
| Lamb Weston Inc.. | Power | 600 | Non-transient non-community | Groundwater |
| Simplot Company Pocatello | Power | 370 | Non-transient non-community | Groundwater |
| Rockland City of | Power | 242 | Community | Groundwater |
| Indian Springs Resort & Rv | Power | 100 | Transient non-community | Groundwater |
| Riverbend Estates | Power | 92 | 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, “Itd Massacre Rocks Rest Area, PWSID ID6390030, Idaho”, https://aquacensus.com/water-systems/idaho/itd-massacre-rocks-rest-area-id6390030 (data as of October 1, 2026).