Sam Hill Estates
EPA ID: MD0100040 · 1,036 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Sam Hill Estates (MD0100040): no EPA violations recorded in the last five years. In every reporting cycle over the past five years, Sam Hill Estates has come through without a single EPA violation - a consistent performance across the full service population of approximately 1,036 residents that reflects both well-maintained infrastructure and reliable operational oversight.
Data: EPA SDWIS
Service Area Map
Coverage area for Sam Hill Estates Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Sam Hill Estates serves a community with a median household income of $179,797 and an estimated 48,081 residents across its service area. Approximately 45% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Sam Hill Estates'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.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 9 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
Comparable Water Systems
Similar-sized systems in Maryland
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
Sam Hill Estates (EPA ID: MD0100040) is a community water system in Maryland that serves approximately 1,036 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0017 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.
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 MD or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sam Hill Estates (MD0100040) on EPA.gov.
Frequently Asked Questions
Is Sam Hill Estates water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Sam Hill Estates 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 Sam Hill Estates serve?
Sam Hill Estates serves approximately 1,036 people across 3 ZIP codes in Maryland.
Where does Sam Hill Estates get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Sam Hill Estates Water Quality Report, MD. https://zipcheckup.com/water-system/md0100040/
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title = {{Sam Hill Estates Water Quality Report, MD}},
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url = {https://zipcheckup.com/water-system/md0100040/}
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