Public water system · ID4080042
ActiveShilo Ranch Estates
At a glance
Shilo Ranch Estates (PWSID ID4080042) is an active community water system in Boise County, Idaho. It reports serving 44 people through 37 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; none is health-based, and the most recent began in August 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
44
Service connections
37
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Shilo Ranch Estates compare with other water systems in Boise County?
By EPA's size categories, Shilo Ranch Estates is a very small system (500 people or fewer). Boise County has 55 active public water systems. Its population served is well below the county average of 135 people per system, and accounts for 0.6% of the 7,448 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 Shilo Ranch 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 Shilo Ranch Estates?
EPA lists Shilo Ranch 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. 49 of the 55 active systems in Boise County (89%) are also privately owned.
Does Shilo Ranch Estates have drinking water violations?
EPA's records list 10 violations for this system; none is health-based, and the most recent began in August 2020. The violations listed here began between February 2004 and August 2020. By type: 9 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 6 as archived and 4 as resolved. 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. 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 |
| 2015-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2013-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2011-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2011-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2009-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4-Dcode 2105 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2004-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 10 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.
Shilo Ranch Estates: frequently asked questions
Who runs Shilo Ranch Estates?
Shilo Ranch Estates (PWSID ID4080042) is a community water system privately owned. It is regulated by the ID state drinking water program.
How many people does Shilo Ranch Estates serve?
Shilo Ranch Estates reports serving 44 people through 37 service connections in Boise County, Idaho.
Where does Shilo Ranch 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 Shilo Ranch Estates have any drinking water violations?
EPA's records list 10 violations for this system; 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 Shilo Ranch 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 10 violations for this system; 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 Shilo Ranch Estates' water quality report?
As a community water system, Shilo Ranch 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 Boise County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Idpr Lucky Peak Sp Spring Shores | Boise | 780 | Transient non-community | Groundwater |
| Bogus Basin Mtn Resort | Boise | 750 | Non-transient non-community | Surface water |
| Horseshoe Bend Water Supply | Boise | 750 | Community | Surface water |
| Idaho City Water Dept | Boise | 531 | Community | Surface water |
| Wilderness Ranch Owners Association Inc. | Boise | 525 | Community | Surface water |
| Terrace Lakes Water Company | Boise | 475 | 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, “Shilo Ranch Estates, PWSID ID4080042, Idaho”, https://aquacensus.com/water-systems/idaho/shilo-ranch-estates-id4080042 (data as of October 1, 2026).