Windsor Mill, MD Water Safety: 55/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Compared to top-scoring cities in MD, Windsor Mill lands in the middle tier — some water systems meet standards cleanly, others carry documented violations, and performance can vary significantly across service areas.
How Windsor Mill Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Windsor Mill Residents
- Homes built before 1986: 61% — older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 12.61 — above typical levels.
Windsor Mill's Water Providers
As of current federal records, Windsor Mill, MD is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.
Overview
We track water quality and home safety data for 1 ZIP code in Windsor Mill, Maryland (population ~39,545), covering 1 community water system serving approximately 1,600,000 people region-wide.
No EPA violations recorded across any ZIP codes in Windsor Mill — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Windsor Mill: C (55/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Windsor Mill water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Windsor Mill
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 21244 | C | CITY OF BALTIMORE | 1,600,000 |
All ZIP Codes in Windsor Mill
- 21244 [C]
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
Updated daily.
Windsor Mill Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Windsor Mill Infrastructure Age
With 61% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Windsor Mill's median build year of 1972 places it squarely in that category.
Over half of homes in Windsor Mill were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Windsor Mill
Given current Windsor Mill valuations, the remediation-to-property-value ratio is low — most homeowners are looking at a proportionally modest share that fits within routine financial planning.
Remediation costs in Windsor Mill are relatively low compared to home values. The $1,100–$3,400 estimated range is a small fraction of median property value. Home values are 37% below the Maryland average.
Windsor Mill: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 61% pre-rule share in Windsor Mill keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Windsor Mill: Flood History & Water Damage Risk
Within the NFIP's national dataset, Windsor Mill falls in moderate-exposure territory — 30 documented incidents spanning multiple decades, with 100% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Windsor Mill has a moderate flood history with 30 FEMA claims averaging $4,620 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$2,100</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Windsor Mill
- 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. With 61% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Windsor Mill, MD