Woodland Hills Sanitary District
EPA ID: SD4600042 · 255 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Woodland Hills Sanitary District (SD4600042): no drinking-water violations recorded since 2021. Although compliance varies widely among water utilities nationally, the SDWIS file for Woodland Hills Sanitary District lists no EPA violations for this supplier, whose service area covers 255 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Woodland Hills Sanitary District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Woodland Hills Sanitary District have a median household income of $81,858 and about 7,329 residents live in those ZIP codes (Census; not the number of people this system supplies).
💧 Where Does Your Water Come From?
Woodland Hills Sanitary District'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.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in South Dakota
System Overview
Woodland Hills Sanitary District (EPA ID: SD4600042) is a community water system in South Dakota that serves approximately 255 people from groundwater sources.
This system serves ZIP code 57718 in Black Hawk.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.004 mg/L | No | 2023-12-31 |
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.
- 57718 - Black Hawk
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Woodland Hills Sanitary District (SD4600042) on EPA.gov.
Frequently Asked Questions
Is Woodland Hills Sanitary District water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Woodland Hills Sanitary District 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 Woodland Hills Sanitary District serve?
Woodland Hills Sanitary District serves approximately 255 people across 1 ZIP code in South Dakota.
Where does Woodland Hills Sanitary District get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Woodland Hills Sanitary District Water Quality Report, SD. https://zipcheckup.com/water-system/sd4600042/
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