Arnold, MD: 2 Violations - Home Safety 83/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Arnold: B.
This ZIP looks solid, with a few items worth a quick check.
Throughout Arnold and across its water systems, EPA compliance data for MD shows above-average performance - violations are minimal, none of the tracked systems have recorded repeated MCL exceedances in recent cycles, and the safety picture has held steady across multiple reporting periods.
How Arnold Compares
Data: EPA SDWIS
Key Facts for Arnold Residents
- Your city's water systems recorded 2 violations in the past 5 years.
- Homes built before 1986: 66% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 11.75.
Arnold's Water Providers
Federal drinking water records identify 1 system operating in Arnold, MD. One of those systems serves the overwhelming majority of residential addresses, concentrating infrastructure management, rate authority, and EPA compliance reporting within a single organization.
- B
Overview
We track home safety data for 1 ZIP code in Arnold, Maryland (population ~22,306), covering 1 community water system serving approximately 290,606 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 Arnold: B (83/100)
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
Arnold water systems draw from: Groundwater.
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 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Lead | Inorganic | 2 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 21012 | B | 2 | 0 | Glen Burnie-broadneck |
All ZIP Codes in Arnold
- 21012 [B] - 2 violations
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.
Arnold 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
What's in Arnold's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Arnold Infrastructure Age
With 66% 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. Arnold's median build year of 1970 places it squarely in that category.
Over half of homes in Arnold 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 Arnold
Given current Arnold 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 Arnold are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 29% above the Maryland average.
Arnold: 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.
Routinely in Arnold, where 66% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Arnold: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Arnold contains 80 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $23,676. Among ZIP codes with claim records, 100% 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>$1,600</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.
Deep Dive Reports
Detailed analysis for Arnold, MD