Kingbrook Iii Rural Water System
EPA ID: SD4600874 · 2,888 people served · 11 ZIP codes
ZipCheckup's reading of EPA SDWIS for Kingbrook Iii Rural Water System (SD4600874): no EPA violations recorded in the last five years. For the full five-year period covered by EPA monitoring, Kingbrook Iii Rural Water System has supplied tap water to 2,888 residents with no violations of any type on record.
Data: EPA SDWIS
Service Area Map
Coverage area for Kingbrook Iii Rural Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Kingbrook Iii Rural Water System serves a community with a median household income of $88,839 and an estimated 17,387 residents across its service area. Approximately 69% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Kingbrook Iii Rural Water System's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in South Dakota
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Kingbrook Iii Rural Water System (EPA ID: SD4600874) is a community water system in South Dakota that serves approximately 2,888 people from groundwater sources.
This system provides water to 11 ZIP codes across 11 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.003 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by SD or modeled from parcel and building-footprint data.
- 57016 - Chester
- 57018 - Colton
- 57042 - Madison
- 57048 - Montrose
- 57050 - Nunda
- 57054 - Ramona
- 57058 - Salem
- 57075 - Wentworth
- 57076 - Winfred
- 57349 - Howard
- 57374 - Spencer
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Kingbrook Iii Rural Water System (SD4600874) on EPA.gov.
Frequently Asked Questions
Is Kingbrook Iii Rural Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Kingbrook Iii Rural Water System in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Kingbrook Iii Rural Water System serve?
Kingbrook Iii Rural Water System serves approximately 2,888 people across 11 ZIP codes in South Dakota.
Where does Kingbrook Iii Rural Water System get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Kingbrook Iii Rural Water System Water Quality Report, SD. https://zipcheckup.com/water-system/sd4600874/
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title = {{Kingbrook Iii Rural Water System Water Quality Report, SD}},
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url = {https://zipcheckup.com/water-system/sd4600874/}
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