Chesapeake Ranch Estates

ZipCheckup's reading of EPA SDWIS for Chesapeake Ranch Estates (MD0040004): no EPA violations recorded in the last five years. From the earliest to the most recent cycle in the five-year EPA window, Chesapeake Ranch Estates has logged zero violations - no MCL exceedances, no health advisories, and no enforcement activity across the entire period for the 9,500 people in its service area, a record that stands up well against both state and national benchmarks.

Data: EPA SDWIS

System Overview

Chesapeake Ranch Estates (EPA ID: MD0040004) is a community water system in Maryland that serves approximately 9,500 people from groundwater sources.

This system serves ZIP code 20657 in Lusby.

ZIP-Area Home Safety Context: C (66/100)

This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

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.

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.

• 20657 - Lusby

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Chesapeake Ranch Estates (MD0040004) on EPA.gov.

Frequently Asked Questions

Is Chesapeake Ranch Estates water safe to drink?

The accepted 2026Q2 ECHO snapshot contains zero violation records for Chesapeake Ranch 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 Chesapeake Ranch Estates serve?

Chesapeake Ranch Estates serves approximately 9,500 people across 1 ZIP code in Maryland.

Where does Chesapeake Ranch Estates get its water?

The primary water source is groundwater.

@misc{zipcheckup-water-system-md0040004,
  author = {{ZipCheckup}},
  title  = {{Chesapeake Ranch Estates Water Quality Report, MD}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/md0040004/}
}