Public water system · IA3203301
ActiveOak Shores
At a glance
Oak Shores (PWSID IA3203301) is an active community water system in Emmet County, Iowa. It reports serving 55 people through 22 service connections. 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 August 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
55
Service connections
22
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Oak Shores compare with other water systems in Emmet County?
By EPA's size categories, Oak Shores is a very small system (500 people or fewer). Emmet County has 12 active public water systems. Its population served is well below the county average of 672 people per system, and accounts for 0.7% of the 8,060 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 Oak Shores 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 Oak Shores?
EPA lists Oak Shores as privately owned. 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. 4 of the 12 active systems in Emmet County (33%) are also privately owned.
Does Oak Shores have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in August 2023. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2023-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
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.
Oak Shores: frequently asked questions
Who runs Oak Shores?
Oak Shores (PWSID IA3203301) is a community water system privately owned. It is regulated by the IA state drinking water program.
How many people does Oak Shores serve?
Oak Shores reports serving 55 people through 22 service connections in Emmet County, Iowa.
Where does Oak Shores 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 Oak Shores 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 August 2023. 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 Oak Shores' 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 August 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Oak Shores' water quality report?
As a community water system, Oak Shores 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 Emmet County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Estherville Water Treatment Plant | Emmet | 5,904 | Community | Groundwater |
| Armstrong Water Supply | Emmet | 918 | Community | Groundwater |
| Ringsted Water Supply | Emmet | 365 | Community | Groundwater |
| Wallingford Municipal Waterworks | Emmet | 170 | Community | Purchased groundwater |
| Droessler'S Water | Emmet | 158 | Community | Purchased groundwater |
| Culvers of Petoskey | Emmet | 125 | 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, “Oak Shores, PWSID IA3203301, Iowa”, https://aquacensus.com/water-systems/iowa/oak-shores-ia3203301 (data as of October 1, 2026).