Winner
EPA ID: SD4600373 · 2,921 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Winner (SD4600373): no drinking-water violations recorded since 2021. With no violations in its EPA file, Winner serves 2,921 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Winner Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Winner have a median household income of $67,694 and about 4,271 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 77% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 100% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Winner's water is classified in EPA records as a groundwater source. 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
System Overview
Winner (EPA ID: SD4600373) is a community water system in South Dakota that serves approximately 2,921 people from groundwater sources.
This system serves ZIP code 57580 in Winner.
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 | 2024-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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.
- 57580 - Winner
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Winner (SD4600373) on EPA.gov.
Frequently Asked Questions
Is Winner water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Winner 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 Winner serve?
Winner serves approximately 2,921 people across 1 ZIP code in South Dakota.
Where does Winner get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Winner Water Quality Report, SD. https://zipcheckup.com/water-system/sd4600373/
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title = {{Winner Water Quality Report, SD}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/sd4600373/}
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