Public water system · ID4430105
ActiveBlackhawk on the River
At a glance
Blackhawk on the River (PWSID ID4430105) is an active community water system in Valley County, Idaho. It reports serving 150 people through 28 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in May 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
28
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Blackhawk on the River compare with other water systems in Valley County?
By EPA's size categories, Blackhawk on the River is a very small system (500 people or fewer). Valley County has 57 active public water systems. Its population served is about 31% below the county average of 218 people per system, and accounts for 1.2% of the 12,448 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 Blackhawk on the River 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 Blackhawk on the River?
EPA lists Blackhawk on the River 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. 42 of the 57 active systems in Valley County (74%) are also privately owned.
Does Blackhawk on the River have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in May 2019. The violations listed here began between January 2014 and May 2019. By type: 2 required treatment not met, 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Groundwater Rule (2 of them). EPA lists 3 as resolved and 2 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. 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 |
|---|---|---|---|---|
| 2019-05-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2019-05-16 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2015-05-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2014-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 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.
Blackhawk on the River: frequently asked questions
Who runs Blackhawk on the River?
Blackhawk on the River (PWSID ID4430105) is a community water system privately owned. It is regulated by the ID state drinking water program.
How many people does Blackhawk on the River serve?
Blackhawk on the River reports serving 150 people through 28 service connections in Valley County, Idaho.
Where does Blackhawk on the River 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 Blackhawk on the River have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in May 2019. 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 Blackhawk on the River'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 5 violations for this system; 2 are health-based, and the most recent began in May 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find Blackhawk on the River's water quality report?
As a community water system, Blackhawk on the River 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 Valley County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mccall City of | Valley | 4,423 | Community | Surface water |
| Cascade City of | Valley | 1,000 | Community | Groundwater |
| Idpr Ponderosa Sp | Valley | 1,000 | Transient non-community | Groundwater |
| Meadows at West Mountain | Valley | 550 | Community | Groundwater |
| Tamarack Resort Association Inc. | Valley | 400 | Non-transient non-community | Groundwater |
| Fir Grove Estates | Valley | 270 | 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, “Blackhawk on the River, PWSID ID4430105, Idaho”, https://aquacensus.com/water-systems/idaho/blackhawk-on-the-river-id4430105 (data as of October 1, 2026).