Public water system · ID3370018
ActiveRimrock Jr Sr High School
At a glance
Rimrock Jr Sr High School (PWSID ID3370018) is an active non-transient non-community water system in Owyhee County, Idaho. It reports serving 295 people through 7 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
295
Service connections
7
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Rimrock Jr Sr High School compare with other water systems in Owyhee County?
By EPA's size categories, Rimrock Jr Sr High School is a very small system (500 people or fewer). Owyhee County has 24 active public water systems, and Rimrock Jr Sr High School is the 4th-largest of them by population served. Its population served is roughly in line with the county average of 297 people per system, and accounts for 4.1% of the 7,130 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 Rimrock Jr Sr High School is about 31% below 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 Rimrock Jr Sr High School?
EPA lists Rimrock Jr Sr High School as owned by a local 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. 5 of the 24 active systems in Owyhee County (21%) are also owned by a local government.
Does Rimrock Jr Sr High School have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2021. The violations listed here began between January 2017 and December 2021. By type: 10 monitoring and reporting, 1 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 10 as resolved, 1 as unaddressed and 1 as archived. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2021-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2019-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2018-07-26 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | 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.
Rimrock Jr Sr High School: frequently asked questions
Who runs Rimrock Jr Sr High School?
Rimrock Jr Sr High School (PWSID ID3370018) is a non-transient non-community water system owned by a local government. It is regulated by the ID state drinking water program.
How many people does Rimrock Jr Sr High School serve?
Rimrock Jr Sr High School reports serving 295 people through 7 service connections in Owyhee County, Idaho.
Where does Rimrock Jr Sr High School 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 Rimrock Jr Sr High School have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2021. 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 Rimrock Jr Sr High School'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, one is health-based, and the most recent began in December 2021. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find Rimrock Jr Sr High School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rimrock Jr Sr High School 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 Owyhee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Homedale City of | Owyhee | 3,300 | Community | Groundwater |
| Marsing City of | Owyhee | 1,300 | Community | Groundwater |
| Grand View, City of | Owyhee | 452 | Community | Groundwater |
| Bruneau Water and Sewer Dist | Owyhee | 220 | Community | Groundwater |
| Givens Hot Springs | Owyhee | 207 | Transient non-community | Groundwater |
| Black Sands Resort | Owyhee | 200 | 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, “Rimrock Jr Sr High School, PWSID ID3370018, Idaho”, https://aquacensus.com/water-systems/idaho/rimrock-jr-sr-high-school-id3370018 (data as of October 1, 2026).