Water Quality Report

Elk Mills, MD (21920): 3 Violations Recorded for Mapped Water Systems

EPA data for Elkton West

EPA records for the water systems mapped to 21920 in Elk Mills, MD contain 3 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score N/A
Water Quality Concerns 3 non-health-based violation records in EPA data
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2023-12-31
NFIP Claim History N/A
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 3 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
  • Radon EPA Zone 2 - county-level radon potential, not a home measurement.
Contaminant Summary
Violations on record (not health-based)
3 violations 1 risk identified
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
1
Water System
3,500
People Served
0
Health Violations (since 2021)
Surface water
Water Source
Zone 2
County Radon Potential · Moderate
$339K
Median Home Value16% below state median ($401K)

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
88/100
Observed
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
Unknown
Indoor environment
50/100
Outdoor environment
100/100

Coverage: 3 of 4 components and 2 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (8) HIGH

Your Water System

ZIP code 21920 in Elk Mills, Maryland is mapped to the water system Elkton West (EPA ID: MD0070015). This system provides water to approximately 3,500 people from surface water sources.

Other Water Quality Reports in Maryland

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Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Elkton West (MD0070015) on EPA.gov.

5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Health Risks from Detected Contaminants

Fluoride

Moderate Risk

EPA reference value: 4 mg/L (estándar secundario: 2.0 mg/L)

Tooth & bone damage at high levels

At-risk groups: children aged 8 and younger during tooth development

Treatment options (verify a product is certified to reduce this contaminant): reverse osmosis, activated alumina, distillation · Find a filter →

Learn more about Fluoride in drinking water →

📊 EPA SDWIS + SDWA · View source →
Environmental Hazards (10) HIGH
Home & Infrastructure (8) OK
Cost & Community (7) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Elk Mills

Based on local data for ZIP 21920, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Gutter Installation & Repair

The median home in 21920 was built around 1986. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 21920 safe to drink?

EPA SDWIS records 3 violations since 2021 across the water systems mapped to ZIP 21920 (primary system: Elkton West), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 21920's water come from?

The recorded water source for Elkton West, a system mapped to ZIP code 21920, is Surface water. This system serves approximately 3,500 people.

How can I get my water tested in Elk Mills?

If Elkton West supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

What is the radon risk for 21920?

21920 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Cecil County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

How to cite this page

APA ZipCheckup. (2026). Elk Mills, MD (21920): 3 Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/21920/
BibTeX
@misc{zipcheckup-report-21920,
  author = {{ZipCheckup}},
  title  = {{Elk Mills, MD (21920): 3 Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/21920/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 21920

ZIP Code City, State Distance Grade Violations
21921 Elkton, MD 2.4 mi C 19
21916 Childs, MD 2.4 mi N/A 0
21922 Elkton, MD 3.5 mi N/A 0
19716 Newark, DE 4.3 mi N/A 0
19717 Newark, DE 4.5 mi N/A 0
19351 Lewisville, PA 5.1 mi N/A 0
19360 New London, PA 5.2 mi N/A 0
19711 Newark, DE 5.7 mi C 0
19713 Newark, DE 6.1 mi C 0
19347 Kemblesville, PA 6.3 mi N/A 0

Overall safety breakdown

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Coverage: 15/17 risk factors Data sources →
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