Public water system · ID1280087
ActiveHayden Lake Irrigation Dist
At a glance
Hayden Lake Irrigation Dist (PWSID ID1280087) is an active community water system in Kootenai County, Idaho. It reports serving 9,375 people through 3,750 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,375
Service connections
3,750
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hayden Lake Irrigation Dist compare with other water systems in Kootenai County?
By EPA's size categories, Hayden Lake Irrigation Dist is a medium system (3,301 to 10,000 people). Kootenai County has 182 active public water systems, and Hayden Lake Irrigation Dist is the 5th-largest of them by population served. Its population served is about 9.5 times the county average of 983 people per system, and accounts for 5.2% 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 Hayden Lake Irrigation Dist is about 40% above 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 Hayden Lake Irrigation Dist?
EPA lists Hayden Lake Irrigation Dist as under public/private ownership. 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. 21 of the 182 active systems in Kootenai County (12%) are also under public/private ownership.
Does Hayden Lake Irrigation Dist have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 2017. The violations listed here began between January 1993 and July 2017. By type: 8 monitoring and reporting and 4 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 8 as resolved and 4 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 |
|---|---|---|---|---|
| 2017-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2017-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2011-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2006-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2006-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2006-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2004-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | 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.
Hayden Lake Irrigation Dist: frequently asked questions
Who runs Hayden Lake Irrigation Dist?
Hayden Lake Irrigation Dist (PWSID ID1280087) is a community water system under public/private ownership. It is regulated by the ID state drinking water program.
How many people does Hayden Lake Irrigation Dist serve?
Hayden Lake Irrigation Dist reports serving 9,375 people through 3,750 service connections in Kootenai County, Idaho.
Where does Hayden Lake Irrigation Dist 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 Hayden Lake Irrigation Dist have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 2017. 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 Hayden Lake Irrigation Dist'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, 4 are health-based, and the most recent began in July 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find Hayden Lake Irrigation Dist's water quality report?
As a community water system, Hayden Lake Irrigation Dist 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 |
| Ross Point Water Dist | Kootenai | 8,965 | Community | Groundwater |
| Avondale Irrigation Dist | Kootenai | 8,785 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Hayden Lake Irrigation Dist, PWSID ID1280087, Idaho”, https://aquacensus.com/water-systems/idaho/hayden-lake-irrigation-dist-id1280087 (data as of October 1, 2026).