Public water system · ID3140246
ActiveLDS Church Deer Flat
At a glance
LDS Church Deer Flat (PWSID ID3140246) is an active transient non-community water system in Canyon County, Idaho. It reports serving 718 people through 1 service connection. 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 January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
718
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does LDS Church Deer Flat compare with other water systems in Canyon County?
By EPA's size categories, LDS Church Deer Flat is a small system (501 to 3,300 people). Canyon County has 140 active public water systems. Its population served is about half of the county average of 1,527 people per system, and accounts for 0.3% of the 213,824 people reported by systems filed under the county. Across Idaho, the 1,961 active systems average 899 people each. Nationally, the average active transient non-community water system reports serving 144 people, so LDS Church Deer Flat is about 5 times that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Idaho has 954 active transient non-community water systems, 49% 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 LDS Church Deer Flat?
EPA lists LDS Church Deer Flat 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. 123 of the 140 active systems in Canyon County (88%) are also privately owned.
Does LDS Church Deer Flat have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2025. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
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.
LDS Church Deer Flat: frequently asked questions
Who runs LDS Church Deer Flat?
LDS Church Deer Flat (PWSID ID3140246) is a transient non-community water system privately owned. It is regulated by the ID state drinking water program.
How many people does LDS Church Deer Flat serve?
LDS Church Deer Flat reports serving 718 people through 1 service connection in Canyon County, Idaho.
Where does LDS Church Deer Flat 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 LDS Church Deer Flat 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 January 2025. 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 LDS Church Deer Flat'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. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2025. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find LDS Church Deer Flat's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. LDS Church Deer Flat is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Canyon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nampa City of | Canyon | 100,200 | Community | Groundwater |
| Caldwell City of | Canyon | 74,000 | Community | Groundwater |
| Middleton City of | Canyon | 13,190 | Community | Groundwater |
| Parma City of | Canyon | 2,250 | Community | Groundwater |
| Wilder City of | Canyon | 1,690 | Community | Groundwater |
| Caldwell Housing Authority | Canyon | 1,100 | 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, “LDS Church Deer Flat, PWSID ID3140246, Idaho”, https://aquacensus.com/water-systems/idaho/lds-church-deer-flat-id3140246 (data as of October 1, 2026).