Public water system · ID1400012
ActiveCataldo Water Dist
At a glance
Cataldo Water Dist (PWSID ID1400012) is an active community water system in Shoshone County, Idaho. It reports serving 680 people through 272 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in August 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
680
Service connections
272
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cataldo Water Dist compare with other water systems in Shoshone County?
By EPA's size categories, Cataldo Water Dist is a small system (501 to 3,300 people). Shoshone County has 37 active public water systems, and Cataldo Water Dist is the 5th-largest of them by population served. Its population served is about 61% above the county average of 422 people per system, and accounts for 4.4% of the 15,614 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 Cataldo Water 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 Cataldo Water Dist?
EPA lists Cataldo Water 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. 4 of the 37 active systems in Shoshone County (11%) are also under public/private ownership.
Does Cataldo Water Dist have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in August 2008. The violations listed here began between November 1995 and August 2008. By type: 6 monitoring and reporting, 5 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (9 of them). EPA lists 7 as resolved and 5 as archived. 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. 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 |
|---|---|---|---|---|
| 2008-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2000-11-21 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2000-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2000-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1999-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1999-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1997-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1995-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
The 12 most recent 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.
Cataldo Water Dist: frequently asked questions
Who runs Cataldo Water Dist?
Cataldo Water Dist (PWSID ID1400012) is a community water system under public/private ownership. It is regulated by the ID state drinking water program.
How many people does Cataldo Water Dist serve?
Cataldo Water Dist reports serving 680 people through 272 service connections in Shoshone County, Idaho.
Where does Cataldo Water 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 Cataldo Water Dist have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in August 2008. 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 Cataldo Water 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. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in August 2008. For current results, consult the system's annual water quality report, EPA ECHO, or the ID state drinking water program.
Where can I find Cataldo Water Dist's water quality report?
As a community water system, Cataldo Water 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 Shoshone County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Central Shoshone County Water Dist | Shoshone | 6,098 | Community | Groundwater under influence of surface water |
| E Shoshone County Water Dist Wallace | Shoshone | 2,388 | Community | Surface water |
| Pinehurst Water Dist | Shoshone | 1,950 | Community | Groundwater |
| E Shoshone County Water Dist Mullan | Shoshone | 840 | Community | Surface water |
| Lookout Pass Ski Area | Shoshone | 600 | Transient non-community | Groundwater under influence of surface water |
| Kingston Water Dist 1 | Shoshone | 585 | 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, “Cataldo Water Dist, PWSID ID1400012, Idaho”, https://aquacensus.com/water-systems/idaho/cataldo-water-dist-id1400012 (data as of October 1, 2026).