Public water system · ID2180013
ActiveElk River City of
At a glance
City of Elk River (PWSID ID2180013) is an active community water system in Clearwater County, Idaho. It reports serving 165 people through 203 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
165
Service connections
203
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Elk River compare with other water systems in Clearwater County?
By EPA's size categories, City of Elk River is a very small system (500 people or fewer). Clearwater County has 26 active public water systems, and City of Elk River is the 6th-largest of them by population served. Its population served is about 38% below the county average of 268 people per system, and accounts for 2.4% of the 6,972 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 City of Elk 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 66 Idaho systems (3.4%) list surface water as their primary source.
Who owns and regulates City of Elk River?
EPA lists City of Elk River 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. 8 of the 26 active systems in Clearwater County (31%) are also owned by a local government.
Does City of Elk River have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2018. The violations listed here began between March 2016 and March 2018. By type: 10 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Surface Water Treatment Rule (3 of them). EPA lists 12 as resolved. 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 |
|---|---|---|---|---|
| 2018-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-03-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2018-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2018-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2017-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2017-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2017-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2017-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2016-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-03-31 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | 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.
City of Elk River: frequently asked questions
Who runs City of Elk River?
City of Elk River (PWSID ID2180013) is a community water system owned by a local government. It is regulated by the ID state drinking water program.
How many people does City of Elk River serve?
City of Elk River reports serving 165 people through 203 service connections in Clearwater County, Idaho.
Where does City of Elk River get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Elk River 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 March 2018. 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 City of Elk 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find City of Elk River's water quality report?
As a community water system, City of Elk 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 Clearwater County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Orofino City of | Clearwater | 2,459 | Community | Surface water |
| Riverside Water and Sewer District | Clearwater | 2,000 | Community | Surface water |
| Pierce City of | Clearwater | 467 | Community | Surface water |
| Weippe City of | Clearwater | 438 | Community | Groundwater |
| Timberline High School | Clearwater | 200 | Non-transient non-community | Groundwater |
| Orofino Golf Course | Clearwater | 150 | 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, “Elk River City of, PWSID ID2180013, Idaho”, https://aquacensus.com/water-systems/idaho/elk-river-city-of-id2180013 (data as of October 1, 2026).