Public water system · SD4600511
ActiveKingbrook Ii Rural Water System
At a glance
Kingbrook Ii Rural Water System (PWSID SD4600511) is an active community water system in Kingsbury County, South Dakota. It reports serving 2,715 people through 1,556 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in October 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,715
Service connections
1,556
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Kingbrook Ii Rural Water System compare with other water systems in Kingsbury County?
By EPA's size categories, Kingbrook Ii Rural Water System is a small system (501 to 3,300 people). Kingsbury County has 7 active public water systems, and Kingbrook Ii Rural Water System is the largest of them by population served. Its population served is about 3.3 times the county average of 827 people per system, and accounts for 47% of the 5,786 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 Kingbrook Ii Rural Water System is about 59% 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 431 South Dakota systems (62%) list groundwater as their primary source.
Who owns and regulates Kingbrook Ii Rural Water System?
EPA lists Kingbrook Ii Rural Water System as privately owned. 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. 2 of the 7 active systems in Kingsbury County (29%) are also privately owned.
Does Kingbrook Ii Rural Water System have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in October 2007. The violations listed here began between June 1976 and October 2007. By type: 2 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Total coliform bacteria (TCR), Gross alpha (excluding radon and uranium) and Combined Radium (-226 and -228). EPA lists 2 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 |
|---|---|---|---|---|
| 2007-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1976-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1976-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | 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.
Kingbrook Ii Rural Water System: frequently asked questions
Who runs Kingbrook Ii Rural Water System?
Kingbrook Ii Rural Water System (PWSID SD4600511) is a community water system privately owned. It is regulated by the SD state drinking water program.
How many people does Kingbrook Ii Rural Water System serve?
Kingbrook Ii Rural Water System reports serving 2,715 people through 1,556 service connections in Kingsbury County, South Dakota.
Where does Kingbrook Ii Rural Water System 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 Kingbrook Ii Rural Water System have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in October 2007. 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 Kingbrook Ii Rural Water System'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; 1 is health-based, and the most recent began in October 2007. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Kingbrook Ii Rural Water System's water quality report?
As a community water system, Kingbrook Ii Rural Water System 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 Kingsbury County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| De Smet | Kingsbury | 1,056 | Community | Groundwater |
| Arlington | Kingsbury | 915 | Community | Purchased groundwater |
| Lake Preston | Kingsbury | 589 | Community | Purchased groundwater |
| Iroquois | Kingsbury + 1 more | 292 | Community | Purchased groundwater |
| Spring Lake Colony | Kingsbury | 114 | Community | Groundwater |
| Badger | Kingsbury | 105 | Community | Purchased 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, “Kingbrook Ii Rural Water System, PWSID SD4600511, South Dakota”, https://aquacensus.com/water-systems/south-dakota/kingbrook-ii-rural-water-system-sd4600511 (data as of October 1, 2026).