Public water system · ID7300105
ActiveIdpr Twin Peaks Ranch Sp
At a glance
Idpr Twin Peaks Ranch Sp (PWSID ID7300105) is an active transient non-community water system in Lemhi County, Idaho. It reports serving 100 people through 21 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 8 violations for this system; 5 are health-based, and the most recent began in June 1995.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
21
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Idpr Twin Peaks Ranch Sp compare with other water systems in Lemhi County?
By EPA's size categories, Idpr Twin Peaks Ranch Sp is a very small system (500 people or fewer). Lemhi County has 42 active public water systems. Its population served is about 27% below the county average of 138 people per system, and accounts for 1.7% of the 5,780 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 Idpr Twin Peaks Ranch Sp is about 31% below 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 Idpr Twin Peaks Ranch Sp?
EPA lists Idpr Twin Peaks Ranch Sp as owned by a state 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. 2 of the 42 active systems in Lemhi County (4.8%) are also owned by a state government.
Does Idpr Twin Peaks Ranch Sp have drinking water violations?
EPA's records list 8 violations for this system; 5 are health-based, and the most recent began in June 1995. The violations listed here began between July 1992 and June 1995. By type: 5 contaminant level above the legal limit and 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 1995-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1992-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 8 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.
Idpr Twin Peaks Ranch Sp: frequently asked questions
Who runs Idpr Twin Peaks Ranch Sp?
Idpr Twin Peaks Ranch Sp (PWSID ID7300105) is a transient non-community water system owned by a state government. It is regulated by the ID state drinking water program.
How many people does Idpr Twin Peaks Ranch Sp serve?
Idpr Twin Peaks Ranch Sp reports serving 100 people through 21 service connections in Lemhi County, Idaho.
Where does Idpr Twin Peaks Ranch Sp 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 Idpr Twin Peaks Ranch Sp have any drinking water violations?
EPA's records list 8 violations for this system; 5 are health-based, and the most recent began in June 1995. 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 Idpr Twin Peaks Ranch Sp'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 8 violations for this system; 5 are health-based, and the most recent began in June 1995. For current results, consult EPA ECHO, or the ID state drinking water program.
Where can I find Idpr Twin Peaks Ranch Sp's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Idpr Twin Peaks Ranch Sp 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 Lemhi County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Salmon City of | Lemhi | 3,158 | Community | Surface water |
| Lemhi (Salmon) LDS Chapel | Lemhi | 203 | Transient non-community | Groundwater |
| Elk Bend Unit 1 | Lemhi | 200 | Community | Groundwater |
| Williams Lake Subd | Lemhi | 200 | Transient non-community | Groundwater |
| LDS Church Leadore | Lemhi | 151 | Transient non-community | Groundwater |
| Lemhi County Fairgrounds | Lemhi | 150 | 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, “Idpr Twin Peaks Ranch Sp, PWSID ID7300105, Idaho”, https://aquacensus.com/water-systems/idaho/idpr-twin-peaks-ranch-sp-id7300105 (data as of October 1, 2026).