Public water system · SD4600874
ActiveKingbrook Iii Rural Water System
At a glance
Kingbrook Iii Rural Water System (PWSID SD4600874) is an active community water system in Lake County, South Dakota. It reports serving 2,888 people through 1,155 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,888
Service connections
1,155
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Kingbrook Iii Rural Water System compare with other water systems in Lake County?
By EPA's size categories, Kingbrook Iii Rural Water System is a small system (501 to 3,300 people). Lake County has 5 active public water systems, and Kingbrook Iii Rural Water System is the 2nd-largest of them by population served. Its population served is about 48% above the county average of 1,956 people per system, and accounts for 30% of the 9,782 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 Iii Rural Water System is about 57% 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 Iii Rural Water System?
EPA lists Kingbrook Iii 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. 1 of the 5 active systems in Lake County (20%) are also privately owned.
Does Kingbrook Iii Rural Water System have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Kingbrook Iii Rural Water System. For the latest compliance status, check EPA ECHO for current compliance history.
Kingbrook Iii Rural Water System: frequently asked questions
Who runs Kingbrook Iii Rural Water System?
Kingbrook Iii Rural Water System (PWSID SD4600874) is a community water system privately owned. It is regulated by the SD state drinking water program.
How many people does Kingbrook Iii Rural Water System serve?
Kingbrook Iii Rural Water System reports serving 2,888 people through 1,155 service connections in Lake County, South Dakota.
Where does Kingbrook Iii 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 Iii Rural Water System have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Kingbrook Iii 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 Safe Drinking Water Act records list no violations for this system. 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 Iii Rural Water System's water quality report?
As a community water system, Kingbrook Iii 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 Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Madison | Lake | 6,191 | Community | Groundwater |
| Chester Sanitary District | Lake | 363 | Community | Purchased groundwater |
| Wentworth | Lake | 181 | Community | Purchased groundwater |
| Ramona | Lake | 159 | 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 Iii Rural Water System, PWSID SD4600874, South Dakota”, https://aquacensus.com/water-systems/south-dakota/kingbrook-iii-rural-water-system-sd4600874 (data as of October 1, 2026).