Public water system · ID1280290
ActiveBlack Rock Utilities Inc.
At a glance
Black Rock Utilities Inc. (PWSID ID1280290) is an active community water system in Kootenai County, Idaho. It reports serving 1,014 people through 259 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,014
Service connections
259
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Black Rock Utilities Inc. compare with other water systems in Kootenai County?
By EPA's size categories, Black Rock Utilities Inc. is a small system (501 to 3,300 people). Kootenai County has 182 active public water systems. Its population served is roughly in line with the county average of 983 people per system, and accounts for 0.6% of the 178,930 people reported by systems filed under the county. Across Idaho, the 1,961 active systems average 899 people each. Nationally, the average active community water system reports serving 6,703 people, so Black Rock Utilities Inc. is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Idaho has 765 active community water systems, 39% 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 Black Rock Utilities Inc.?
EPA lists Black Rock Utilities Inc. as privately owned. 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. 123 of the 182 active systems in Kootenai County (68%) are also privately owned.
Does Black Rock Utilities Inc. have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022. The violations listed here began between April 2016 and July 2022. By type: 11 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Combined Uranium (3 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2022-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2018-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2018-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | 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.
Black Rock Utilities Inc.: frequently asked questions
Who runs Black Rock Utilities Inc.?
Black Rock Utilities Inc. (PWSID ID1280290) is a community water system privately owned. It is regulated by the ID state drinking water program.
How many people does Black Rock Utilities Inc. serve?
Black Rock Utilities Inc. reports serving 1,014 people through 259 service connections in Kootenai County, Idaho.
Where does Black Rock Utilities Inc. 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 Black Rock Utilities Inc. 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 July 2022. 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 Black Rock Utilities Inc.'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 July 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find Black Rock Utilities Inc.'s water quality report?
As a community water system, Black Rock Utilities Inc. must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Kootenai County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Coeur D Alene City of | Kootenai | 54,115 | Community | Groundwater |
| Post Falls City of | Kootenai | 20,285 | Community | Groundwater |
| East Greenacres Irrigation Dist | Kootenai | 11,165 | Community | Groundwater |
| Rathdrum City of | Kootenai | 10,358 | Community | Groundwater |
| Hayden Lake Irrigation Dist | Kootenai | 9,375 | Community | Groundwater |
| Ross Point Water Dist | Kootenai | 8,965 | 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, “Black Rock Utilities Inc., PWSID ID1280290, Idaho”, https://aquacensus.com/water-systems/idaho/black-rock-utilities-inc-id1280290 (data as of October 1, 2026).