ZipCheckup grade for 21005: D.
Federal records show several conditions worth reviewing.
Your top priority: see the breakdown below and consider a certified water filter. Check your ZIP → NSF certified filters
Aberdeen Proving Ground, MD: PFAS Detected in Mapped Water Systems - 49/100
EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: City of Aberdeen)
EPA records for the water systems mapped to 21005 in Aberdeen Proving Ground, 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
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.
- PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
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Although the dataset for Aberdeen Proving Ground (21005) is limited in scope, one critical condition stands as the only elevated finding on record.
Score Breakdown
Overall Home Safety Score: 49/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (8) HIGH
Your Water System
ZIP code 21005 in Aberdeen Proving Ground, Maryland is mapped to the water system City of Aberdeen (EPA ID: MD0120001). This system provides water to approximately 18,006 people from surface water sources.
There are 3 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| City of Aberdeen | MD0120001 | 18,006 | Surface water |
| Chapel Hill - Aberdeen Proving Grounds | MD0120002 | 15,000 | Groundwater |
| Harford County D.p.w. | MD0120016 | 104,567 | Surface water |
Other Water Quality Reports in Maryland
- 20588 (Dhs)
- 20601 (Waldorf) - 3 violations recorded for mapped water systems
- 20602 (Waldorf) - 3 violations recorded for mapped water systems
- 20603 (Waldorf) - 3 violations recorded for mapped water systems
- 20604 (Waldorf)
- 20606 (Abell)
- 20607 (Accokeek) - 3 violations recorded for mapped water systems
- 20608 (Aquasco)
- 20609 (Avenue)
- 20610 (Barstow)
- 20611 (Bel Alton) - 3 violations recorded for mapped water systems
- 20612 (Benedict)
- 20613 (Brandywine) - 2 violations recorded for mapped water systems
- 20615 (Broomes Island)
- 20616 (Bryans Road) - 1 violation recorded for mapped water systems
- 20617 (Bryantown)
- 20618 (Bushwood)
- 20619 (California) - 12 violations recorded for mapped water systems
- 20620 (Callaway) - 1 violation recorded for mapped water systems
- 20621 (Chaptico) - 4 violations recorded for mapped water systems
Nearby Water Quality Reports
- 21001 (Aberdeen) - 4 mi - 5 violations recorded for mapped water systems
- 21130 (Perryman) - 5 mi - 3 violations recorded for mapped water systems
- 21078 (Havre De Grace) - 5 mi - 22 violations recorded for mapped water systems
- 21902 (Perry Point) - 6 mi - 39 violations recorded for mapped water systems
- 21017 (Belcamp) - 6 mi - 3 violations recorded for mapped water systems
- 21903 (Perryville) - 7 mi - 54 violations recorded for mapped water systems
- 21610 (Betterton) - 8 mi
- 21028 (Churchville) - 9 mi
- 21009 (Abingdon) - 10 mi - 3 violations recorded for mapped water systems
- 21010 (Gunpowder) - 10 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Aberdeen (MD0120001) on EPA.gov.
4 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.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 21005. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFBA, PFPeA, PFOS, PFHxA, PFOA, PFHxS, PFBS, PFHpA.
Highest measured level: 0.0094 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (10) HIGH
Home & Infrastructure (8) MODERATE
Cost & Community (8) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Aberdeen Proving Ground
Based on local data for ZIP 21005, 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 21005 was built around 1988. 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 CostsService 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 21005 safe to drink?
EPA SDWIS records 3 violations since 2021 across the water systems mapped to ZIP 21005 (primary system: City of Aberdeen), 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 21005's water come from?
The recorded water source for City of Aberdeen, a system mapped to ZIP code 21005, is Surface water. This system serves approximately 18,006 people.
How does Aberdeen Proving Ground water compare to the national average?
Aberdeen Proving Ground's Home Safety Score ranks lower than 94% of U.S. ZIP codes, and lower than 98% of ZIP codes within Maryland.
How can I get my water tested in Aberdeen Proving Ground?
If City of Aberdeen 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 21005?
21005 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Harford County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 21005's water?
Yes, PFAS have been detected in samples from water systems mapped to 21005. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Aberdeen Proving Ground, MD: PFAS Detected in Mapped Water Systems - 49/100. https://zipcheckup.com/report/21005/
@misc{zipcheckup-report-21005,
author = {{ZipCheckup}},
title = {{Aberdeen Proving Ground, MD: PFAS Detected in Mapped Water Systems - 49/100}},
year = {2026},
url = {https://zipcheckup.com/report/21005/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 21005
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 21001 | Aberdeen, MD | 3.9 mi | D | 5 |
| 21130 | Perryman, MD | 4.9 mi | C | 3 |
| 21078 | Havre De Grace, MD | 5.2 mi | C | 22 |
| 21902 | Perry Point, MD | 5.8 mi | N/A | 39 |
| 21017 | Belcamp, MD | 6.5 mi | C | 3 |
| 21903 | Perryville, MD | 6.9 mi | C | 54 |
| 21610 | Betterton, MD | 8.3 mi | N/A | 0 |
| 21028 | Churchville, MD | 9.1 mi | N/A | 0 |
| 21009 | Abingdon, MD | 9.5 mi | C | 3 |
| 21010 | Gunpowder, MD | 9.8 mi | N/A | 0 |
Nearby ZIP Code Reports
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