Public water system · ID7100039
ActiveIdaho Falls City of
At a glance
City of Idaho Falls (PWSID ID7100039) is an active community water system in Bonneville County, Idaho. It reports serving 69,450 people through 26,464 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, none is health-based, and the most recent began in August 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
69,450
Service connections
26,464
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Idaho Falls compare with other water systems in Bonneville County?
By EPA's size categories, City of Idaho Falls is a large system (10,001 to 100,000 people). Bonneville County has 126 active public water systems, and City of Idaho Falls is the largest of them by population served. Its population served is about 64 times the county average of 1,089 people per system, and accounts for 51% of the 137,194 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 Idaho Falls is about 10 times 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 City of Idaho Falls?
EPA lists City of Idaho Falls 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. 17 of the 126 active systems in Bonneville County (13%) are also owned by a local government.
Does City of Idaho Falls have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2020. The violations listed here began between January 2014 and August 2020. By type: 9 monitoring and reporting and 3 monitoring. The contaminant or rule involved most often is Revised Total Coliform 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 |
|---|---|---|---|---|
| 2020-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2020-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2020-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) adipatecode 2035 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4,5-TP (Silvex)code 2110 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | 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 Idaho Falls: frequently asked questions
Who runs City of Idaho Falls?
City of Idaho Falls (PWSID ID7100039) 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 Idaho Falls serve?
City of Idaho Falls reports serving 69,450 people through 26,464 service connections in Bonneville County, Idaho.
Where does City of Idaho Falls 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 City of Idaho Falls 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 August 2020. 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 Idaho Falls' 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 August 2020. 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 Idaho Falls' water quality report?
As a community water system, City of Idaho Falls 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 Bonneville County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Falls Water Company Inc. | Bonneville | 22,650 | Community | Groundwater |
| Ammon City of | Bonneville | 17,338 | Community | Groundwater |
| Iona Water Dept | Bonneville | 2,717 | Community | Groundwater |
| Comore Loma | Bonneville | 1,500 | Community | Groundwater |
| Melaleuca Warehouse Facility | Bonneville | 1,397 | Non-transient non-community | Groundwater |
| Bonneville High School | Bonneville | 1,354 | Non-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, “Idaho Falls City of, PWSID ID7100039, Idaho”, https://aquacensus.com/water-systems/idaho/idaho-falls-city-of-id7100039 (data as of October 1, 2026).