Public water system · ID2290046
ActiveViola Water and Sewer Dist
At a glance
Viola Water and Sewer Dist (PWSID ID2290046) is an active community water system in Latah County, Idaho. It reports serving 128 people through 67 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in March 2024.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
128
Service connections
67
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Viola Water and Sewer Dist compare with other water systems in Latah County?
By EPA's size categories, Viola Water and Sewer Dist is a very small system (500 people or fewer). Latah County has 29 active public water systems. Its population served is well below the county average of 1,403 people per system, and accounts for 0.3% of the 40,673 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 Viola Water and Sewer Dist 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 Viola Water and Sewer Dist?
EPA lists Viola Water and Sewer Dist as under public/private ownership. 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. 1 of the 29 active systems in Latah County (3.4%) are also under public/private ownership.
Does Viola Water and Sewer Dist have drinking water violations?
EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in March 2024. The violations listed here began between November 1992 and March 2024. By type: 4 monitoring and reporting, 4 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 8 as archived and 1 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 |
|---|---|---|---|---|
| 2024-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2008-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1996-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1995-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1994-06-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1994-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 9 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.
Viola Water and Sewer Dist: frequently asked questions
Who runs Viola Water and Sewer Dist?
Viola Water and Sewer Dist (PWSID ID2290046) is a community water system under public/private ownership. It is regulated by the ID state drinking water program.
How many people does Viola Water and Sewer Dist serve?
Viola Water and Sewer Dist reports serving 128 people through 67 service connections in Latah County, Idaho.
Where does Viola Water and Sewer Dist 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 Viola Water and Sewer Dist have any drinking water violations?
EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in March 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 Viola Water and Sewer Dist'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 9 violations for this system; 4 are health-based, and the most recent began in March 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 Viola Water and Sewer Dist's water quality report?
As a community water system, Viola Water and Sewer Dist 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 Latah County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Moscow Water Dept | Latah | 26,000 | Community | Groundwater |
| University of Idaho | Latah | 8,589 | Community | Groundwater |
| Genesee City of | Latah | 1,044 | Community | Groundwater |
| Troy City of | Latah | 850 | Community | Surface water |
| Potlatch City of | Latah | 812 | Community | Groundwater |
| Juliaetta City of | Latah | 624 | Community | Surface water |
Related pages
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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, “Viola Water and Sewer Dist, PWSID ID2290046, Idaho”, https://aquacensus.com/water-systems/idaho/viola-water-and-sewer-dist-id2290046 (data as of October 1, 2026).