Public water system · ID4200005
ActiveAtlanta Water Assn
At a glance
Atlanta Water Assn (PWSID ID4200005) is an active community water system in Elmore County, Idaho. It reports serving 91 people through 114 service connections. Its primary water source is surface water, 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 December 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
91
Service connections
114
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Atlanta Water Assn compare with other water systems in Elmore County?
By EPA's size categories, Atlanta Water Assn is a very small system (500 people or fewer). Elmore County has 44 active public water systems. Its population served is well below the county average of 607 people per system, and accounts for 0.3% of the 26,726 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 Atlanta Water Assn 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 Atlanta Water Assn?
EPA lists Atlanta Water Assn 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. 39 of the 44 active systems in Elmore County (89%) are also privately owned.
Does Atlanta Water Assn have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2024. The violations listed here began between July 2017 and December 2024. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (4 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2018-08-01 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | E. colicode 3014 | No | Resolved |
| 2018-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2018-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | E. colicode 3014 | No | Resolved |
| 2017-10-01 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | E. colicode 3014 | No | Resolved |
| 2017-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2017-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2017-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2017-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2017-08-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2017-07-02 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | Long Term 2 Enhanced Surface Water Treatment Rulecode 0800 | 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.
Atlanta Water Assn: frequently asked questions
Who runs Atlanta Water Assn?
Atlanta Water Assn (PWSID ID4200005) is a community water system privately owned. It is regulated by the ID state drinking water program.
How many people does Atlanta Water Assn serve?
Atlanta Water Assn reports serving 91 people through 114 service connections in Elmore County, Idaho.
Where does Atlanta Water Assn 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 Atlanta Water Assn 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 December 2024. 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 Atlanta Water Assn'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 December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find Atlanta Water Assn's water quality report?
As a community water system, Atlanta Water Assn 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 Elmore County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mountain Home, City of | Elmore | 14,651 | Community | Groundwater |
| Mountain Home Air Force Base | Elmore | 7,500 | Community | Groundwater |
| Glenns Ferry City of | Elmore | 1,282 | Community | Surface water |
| Mellen Subd Water Dist | Elmore | 250 | Community | Purchased groundwater |
| Trinity Estates Water Users Assn | Elmore | 250 | Community | Groundwater |
| Canyon Creek Mobile Home Park | Elmore | 243 | 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, “Atlanta Water Assn, PWSID ID4200005, Idaho”, https://aquacensus.com/water-systems/idaho/atlanta-water-assn-id4200005 (data as of October 1, 2026).