CITY REPORT MD

Chevy Chase, MD: High Radon Risk - Home Safety 67/100

Name: Water Quality Data for Chevy Chase, MD
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

2 ZIP codes · 1 water system · Updated

ZipCheckup grade for Chevy Chase: C.

A mixed picture - some signals here are worth your attention.

Recent monitoring in Chevy Chase shows middle-tier safety for MD - some systems are clean; others have logged EPA violations.

How Chevy Chase Compares

Chevy Chase67/100

Maryland avg69/100

National avg73/100

Data: EPA SDWIS

ZIP Codes

Water Systems

ZIPs with Violations

C · 67

Avg Safety Score

Zone 1

Radon Risk (High)

$1.2M

Median Home Value

$2,050

Est. Remediation (0.2% of home value)

What You Should Know About Chevy Chase Water

Estimated remediation: $2,050 per household.
CDC health risk index: 10.24.

Who Supplies Your Water in Chevy Chase

Chevy Chase, MD draws its water from one primary utility across 1 tracked system.

Washington Suburban Sanitary Commission
Serves ~1,900,000 people

C

Overview

We track home safety data for 2 ZIP codes in Chevy Chase, Maryland (population ~31,269), covering 1 community water system serving approximately 1,900,000 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Chevy Chase: C (67/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor	What It Measures
Water Quality	EPA violations and compliance history
PFAS MCL Screen	UCMR 5 testing against the covered federal MCLs
Radon Risk	EPA radon zone classification
Annual AQI	EPA AirData county-year median with at least 90 observed days

Water Sources

Chevy Chase water systems draw from: Surface water.

Lead & Copper

Average lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

Zone 1 (High): 2 ZIP codes
Zone 2 (Moderate): 0 ZIP codes
Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

ZIP Code	Safety Score	System	Population
20815	C	Washington Suburban Sanitary Commission	1,900,000

All ZIP Codes in Chevy Chase

20815 [C]
20825

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
Lead/copper: EPA Lead and Copper Rule sampling data
Radon: EPA Map of Radon Zones

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Chevy Chase

9.2%

Asthma (US: 9.8%)

10.8%

Diabetes (US: 10.4%)

12%

Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.2% ↓

Diabetes 10.8% ↑

Mental Health 12% ↓

Vertical line = national average. ■ Above national · ■ Below national

Cost Context: What Remediation Means for Chevy Chase Homeowners

Low proportionality - that's the Chevy Chase picture when remediation costs are placed against typical home equity.

Median Home Value

$1.2M

Est. Remediation

$2,050

Remediation as % of home value 0.2%

Remediation costs in Chevy Chase are relatively low compared to home values. The $1,350–$2,800 estimated range is a small fraction of median property value. Home values are 188% above the Maryland average.

Historical NFIP Claim Context in Chevy Chase

Total FEMA Flood Claims

$6,933

Avg Reported Sum With Payment Data

A/V Share of Claim-Record ZIPs

Historical NFIP data for Chevy Chase contains 35 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $6,933. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,050</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Chevy Chase

Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Deep Dive Reports

Detailed analysis for Chevy Chase, MD

💧

Water Quality

EPA violations, contaminant data, and water system grades

0 EPA violations

⚠️

Lead Risk

Lead levels, housing age, and pipe risk assessment

0 mg/L avg lead

🌊

Flood Risk

NFIP claim history, recorded rated-zone context, and FEMA property-map guidance

2 monitored ZIP codes

🌬️

Air Quality

AQI data, wildfire smoke risk, mold risk, and health tips

🏠

Home Safety

Composite safety score, remediation costs, equity trap analysis

67/100 safety score

🔧

Infrastructure

Water system age, source indicators, and CO/gas safety

Compare with Nearby Cities

Abell, MD

1 ZIP code

Aberdeen, MD

1 ZIP code · 5 EPA violations · Grade D

Aberdeen Proving Ground, MD

1 ZIP code · 3 EPA violations · Grade D

Abingdon, MD

1 ZIP code · 3 EPA violations · Grade C

Accident, MD

1 ZIP code

Frequently Asked Questions

What does the Home Safety Score mean for Chevy Chase, MD?

Chevy Chase has an average Home Safety Score of 67/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.

How does Chevy Chase compare to Maryland average?

Chevy Chase has an average Home Safety Score of 67/100, which is below the Maryland state average of 69/100 for the same model series.

How many water systems serve Chevy Chase?

Chevy Chase is served by 1 public water system across 2 ZIP codes, serving approximately 31,269 people.

How much does it cost to fix water issues in Chevy Chase?

Estimated remediation costs in Chevy Chase average $2,050 per household, ranging from $1,350 to $2,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.

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