Calvert Manor
EPA ID: MD0160004 · 300 people served · 3 ZIP codes
Zero violations in five consecutive years of EPA monitoring — Calvert Manor has held a clean track record across every reporting cycle in that span, with no enforcement activity of any kind on file for the full service population of 300 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Calvert Manor Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Calvert Manor serves a community with a median household income of $129,188 and an estimated 76,177 residents across its service area. Approximately 47% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Calvert Manor'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.
About 1% of homes in Prince George's County, Maryland rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 67th 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. 4 detections recorded.
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
Calvert Manor (EPA ID: MD0160004) is a community water system in Maryland that serves approximately 300 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Average Home Safety Score: B (78/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 20607 | 0.0008 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate 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: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 2 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Calvert Manor (MD0160004) on EPA.gov.
Frequently Asked Questions
Is Calvert Manor water safe to drink?
Based on EPA records, Calvert Manor has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Calvert Manor serve?
Calvert Manor serves approximately 300 people across 3 ZIP codes in Maryland.
Where does Calvert Manor get its water?
The primary water source is groundwater.