CITY REPORT MD

Mount Airy, MD: 6 Violations - Home Safety 48/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Mount Airy: D.

Federal records show several conditions worth reviewing.

Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →

Mount Airy, MD: low grade band.

How Mount Airy Compares

Mount Airy48/100
Maryland avg69/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
D · 48
Avg Safety Score
Zone 1
County Radon Potential (High)
$532K
Median Home Value
$600
Est. Remediation (0.1% of home value)

Key Facts for Mount Airy Residents

  • Your city's water systems recorded 6 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.003 mg/L.
  • Homes built before 1986: 47% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.57.

Mount Airy's Water Providers

When a city is linked to 5 water systems, as Mount Airy, MD is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.

Overview

We track home safety data for 1 ZIP code in Mount Airy, Maryland (population ~32,827), covering 5 community water systems serving approximately 1,986,015 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Mount Airy: D (48/100)

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

Mount Airy water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0030 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

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Fluoride Inorganic 4 1
Toxaphene Organic 4 1
Lead and Copper Rule Treatment Technique 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
21771 D 6 0 Town of Mount Airy

All ZIP Codes in Mount Airy

  • 21771 [D] - 6 violations

Data Sources

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

Mount Airy Community Health Snapshot

9.5%
Asthma (US: 9.8%)
10.6%
Diabetes (US: 10.4%)
15.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.5% ↓
Diabetes 10.6% ↑
Mental Health 15.1% ↑

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

What's in Mount Airy's Water?

Fluoride 4 violations
Inorganic · EPA regulatory level for the contaminant named above: 4 mg/L
Long-term fluoride exposure above the MCL: bone disease
Toxaphene 4 violations
Organic
Lead and Copper Rule 4 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Mount Airy Infrastructure Age

1982
Median Build Year
47%
Built Before 1986
17%
Built Before 1970
Copper
Likely Pipe Material

With 47% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

When a home in Mount Airy was built matters for lead because federal rules adopted in 1986 limited how much lead new plumbing could contain; the local median build year is 1982. A median sits in the middle of a range, so some homes are older and some newer, and past repairs may have changed the pipes in either group. A plumber can identify the materials inside a home, and a lab test measures what reaches the tap.

1982
Median Year Built
47%
Pre-1986 (lead solder era; lead paint banned 1978)
17%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (17%) 1970–1986 (30%) Post-1986 (53%)

Most homes in Mount Airy were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Mount Airy

Here the gap between local home values and the estimated repair bill is wide, so the percentage shown below for Mount Airy stays at or under the 1% mark.

Median Home Value
$532,200
Est. Remediation
$600
Remediation as % of home value 0.1%

Estimated remediation costs in Mount Airy can be compared with local home values. The $400–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 25% above the Maryland average.

Mount Airy: Lead Risk & Vulnerable Populations

47%
Homes Built Before 1986
0.003
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Mount Airy: NFIP Claim Records and Water-Quality Context

2
Total FEMA Flood Claims
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Mount Airy contains 2 flood insurance claims. 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 $600 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 Mount Airy

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Fluoride, listed in the water-quality records for Mount Airy: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. With 47% of homes built before 1986, lead solder is a real possibility.
  4. Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.

Frequently Asked Questions

What does the Home Safety Score mean for Mount Airy, MD?
Mount Airy has an average Home Safety Score of 48/100 (Grade D) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 6 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Mount Airy?
EPA records list 6 EPA violations for Mount Airy water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Mount Airy water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Mount Airy is 0.003 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Mount Airy compare to Maryland average?
Mount Airy has an average Home Safety Score of 48/100, which is below the Maryland state average of 69/100 for the same model series.
How many water systems serve Mount Airy?
Our records map 5 water systems to 1 ZIP code in Mount Airy. The related population figure in our data is approximately 32,827 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Mount Airy?
Estimated remediation cost per household in Mount Airy: $600; modeled range $400 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Mount Airy, MD: 6 Violations - Home Safety 48/100. https://zipcheckup.com/cities/md/mount-airy/
BibTeX
@misc{zipcheckup-cities-md-mount-airy,
  author = {{ZipCheckup}},
  title  = {{Mount Airy, MD: 6 Violations - Home Safety 48/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/md/mount-airy/}
}

Page version: October 2026.

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