Public water system · SD4602093
ActiveDakota Dunes Cid
At a glance
Dakota Dunes Cid (PWSID SD4602093) is an active community water system in Union County, South Dakota. It reports serving 3,700 people through 1,456 service connections. Its primary water source is purchased groundwater under influence, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 1997.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,700
Service connections
1,456
Primary source
GUP
Purchased groundwater under influence
System type
CWS
Community water system
System record
How does Dakota Dunes Cid compare with other water systems in Union County?
By EPA's size categories, Dakota Dunes Cid is a medium system (3,301 to 10,000 people). Union County has 8 active public water systems, and Dakota Dunes Cid is the largest of them by population served. Its population served is about twice the county average of 1,761 people per system, and accounts for 26% of the 14,087 people reported by systems filed under the county. Across South Dakota, the 699 active systems average 1,387 people each. Nationally, the average active community water system reports serving 6,703 people, so Dakota Dunes Cid is about 45% 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. South Dakota has 510 active community water systems, 73% of the state's 699 active systems. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system. 1 South Dakota systems (0.1%) list purchased groundwater under influence as their primary source.
Who owns and regulates Dakota Dunes Cid?
EPA lists Dakota Dunes Cid as owned by a local government. The SD 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 8 active systems in Union County (75%) are also owned by a local government.
Does Dakota Dunes Cid have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 1997. The violations listed here began between July 1997 and September 1997. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 1997-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 3 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.
Dakota Dunes Cid: frequently asked questions
Who runs Dakota Dunes Cid?
Dakota Dunes Cid (PWSID SD4602093) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does Dakota Dunes Cid serve?
Dakota Dunes Cid reports serving 3,700 people through 1,456 service connections in Union County, South Dakota.
Where does Dakota Dunes Cid get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater under influence. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system.
Does Dakota Dunes Cid have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in September 1997. 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 Dakota Dunes Cid'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 3 violations for this system; none is health-based, and the most recent began in September 1997. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Dakota Dunes Cid's water quality report?
As a community water system, Dakota Dunes Cid 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 Union County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| North Sioux City | Union | 3,042 | Community | Groundwater |
| Beresford | Union | 2,359 | Community | Purchased groundwater |
| Elk Point | Union | 2,124 | Community | Groundwater |
| Clay Rws/South Union | Union | 1,447 | Community | Groundwater |
| Alcester | Union | 820 | Community | Purchased groundwater |
| Jefferson | Union | 475 | 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, “Dakota Dunes Cid, PWSID SD4602093, South Dakota”, https://aquacensus.com/water-systems/south-dakota/dakota-dunes-cid-sd4602093 (data as of October 1, 2026).