Public water system · ID5420107
ActiveRock Ledge Estates
At a glance
Rock Ledge Estates (PWSID ID5420107) is an active community water system in Twin Falls County, Idaho. It reports serving 150 people through 57 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
57
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Rock Ledge Estates compare with other water systems in Twin Falls County?
By EPA's size categories, Rock Ledge Estates is a very small system (500 people or fewer). Twin Falls County has 54 active public water systems. Its population served is well below the county average of 1,409 people per system, and accounts for 0.2% of the 76,088 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 Rock Ledge Estates 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 Rock Ledge Estates?
EPA lists Rock Ledge Estates 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. 36 of the 54 active systems in Twin Falls County (67%) are also privately owned.
Does Rock Ledge Estates have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2019. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 as unaddressed. 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 |
|---|---|---|---|---|
| 2019-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
The one violation in EPA's records.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.
Rock Ledge Estates: frequently asked questions
Who runs Rock Ledge Estates?
Rock Ledge Estates (PWSID ID5420107) is a community water system privately owned. It is regulated by the ID state drinking water program.
How many people does Rock Ledge Estates serve?
Rock Ledge Estates reports serving 150 people through 57 service connections in Twin Falls County, Idaho.
Where does Rock Ledge Estates 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 Rock Ledge Estates have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 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 Rock Ledge Estates' 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 one violation for this system; it is not health-based, and the most recent began in December 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 Rock Ledge Estates' water quality report?
As a community water system, Rock Ledge Estates 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 Twin Falls County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Twin Falls City of | Twin Falls | 56,121 | Community | Groundwater |
| Kimberly City of | Twin Falls | 5,359 | Community | Groundwater |
| Buhl City of | Twin Falls | 4,518 | Community | Groundwater |
| Filer Water Works | Twin Falls | 2,858 | Community | Groundwater |
| Hansen City of | Twin Falls | 1,200 | Community | Groundwater |
| LDS Church Kimberly Sc | Twin Falls | 659 | 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, “Rock Ledge Estates, PWSID ID5420107, Idaho”, https://aquacensus.com/water-systems/idaho/rock-ledge-estates-id5420107 (data as of October 1, 2026).