Public water system · IA3980040
ActiveYale Water Supply
At a glance
Yale Water Supply (PWSID IA3980040) is an active community water system in Guthrie County, Iowa. It reports serving 267 people through 111 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
267
Service connections
111
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Yale Water Supply compare with other water systems in Guthrie County?
By EPA's size categories, Yale Water Supply is a very small system (500 people or fewer). Guthrie County has 10 active public water systems. Its population served is about 66% below the county average of 775 people per system, and accounts for 3.4% of the 7,748 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Yale Water Supply 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Yale Water Supply?
EPA lists Yale Water Supply as owned by a local government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 10 active systems in Guthrie County (60%) are also owned by a local government.
Does Yale Water Supply have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2011. The violations listed here began between July 2001 and July 2011. By type: 2 monitoring and reporting. The contaminants or rules involved are Nitrate and Arsenic. EPA lists 2 as resolved. 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 |
|---|---|---|---|---|
| 2011-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
All 2 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.
Yale Water Supply: frequently asked questions
Who runs Yale Water Supply?
Yale Water Supply (PWSID IA3980040) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Yale Water Supply serve?
Yale Water Supply reports serving 267 people through 111 service connections in Guthrie County, Iowa.
Where does Yale Water Supply 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 Yale Water Supply have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2011. 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 Yale Water Supply'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 2 violations for this system; none is health-based, and the most recent began in July 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Yale Water Supply's water quality report?
As a community water system, Yale Water Supply 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 Guthrie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lake Panorama Water Company | Guthrie | 2,900 | Community | Groundwater |
| Guthrie Center Muni Water Work | Guthrie | 1,593 | Community | Groundwater |
| Panora Water Works | Guthrie | 1,142 | Community | Surface water |
| Springbrook State Park-Main System | Guthrie | 450 | Transient non-community | Groundwater |
| Bayard Water Supply | Guthrie | 405 | Community | Groundwater |
| Casey Water Supply | Guthrie | 387 | 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, “Yale Water Supply, PWSID IA3980040, Iowa”, https://aquacensus.com/water-systems/iowa/yale-water-supply-ia3980040 (data as of October 1, 2026).