ZipCheckup grade for 20141: C.
A mixed picture - some signals here are worth your attention.
Your top priority: use a filter certified to reduce PFAS; check which ones. Check your ZIP → EPA PFAS info
Round Hill, VA (20141): PFAS Detected in Mapped Water Systems - 67/100
EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: Round Hill, Town of)
EPA records for the water systems mapped to 20141 in Round Hill, VA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records since 2021.
- Lead The reported 90th-percentile lead result of 0.0034 mg/L is below the EPA action level for water systems; 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 2 - county-level radon potential, not a home measurement.
- Flood 1 cumulative NFIP claim record. Claim evidence is historical, not current map coverage.
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Round Hill (20141): one critical alert.
Score Breakdown
Overall Home Safety Score: 67/100
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 (7) HIGH
Your Water System
ZIP code 20141 in Round Hill, Virginia is mapped to the water system Round Hill, Town of (EPA ID: VA6107650). This system provides water to approximately 5,055 people from groundwater sources.
There are 2 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Round Hill, Town of | VA6107650 | 5,055 | Groundwater |
| Purcellville, Town of | VA6107600 | 8,929 | Surface water |
Other Water Quality Reports in Virginia
- 20101 (Dulles)
- 20102 (Dulles)
- 20103 (Dulles)
- 20104 (Dulles)
- 20105 (Aldie) - 5 violations recorded for mapped water systems
- 20106 (Amissville)
- 20108 (Manassas)
- 20109 (Manassas)
- 20110 (Manassas)
- 20111 (Manassas)
- 20112 (Manassas)
- 20113 (Manassas)
- 20115 (Marshall)
- 20116 (Marshall)
- 20117 (Middleburg) - 4 violations recorded for mapped water systems
- 20118 (Middleburg)
- 20119 (Catlett) - 1 violation recorded for mapped water systems
- 20120 (Centreville) - 1 violation recorded for mapped water systems
- 20121 (Centreville)
- 20122 (Centreville)
Nearby Water Quality Reports
- 20142 (Round Hill) - 1 mi
- 20132 (Purcellville) - 3 mi - 2 violations recorded for mapped water systems
- 20135 (Bluemont) - 4 mi
- 20131 (Philomont) - 4 mi
- 20134 (Purcellville) - 5 mi
- 20160 (Lincoln) - 5 mi
- 20159 (Hamilton) - 6 mi
- 20158 (Hamilton) - 7 mi - 2 violations recorded for mapped water systems
- 20102 (Dulles) - 8 mi
- 20104 (Dulles) - 8 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Round Hill, Town of (VA6107650) 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 20141. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFPeA, PFHxA, 6:2 FTS, PFBA, PFHpA, PFOA, PFBS, PFOS, PFHxS.
Highest measured level: 0.0466 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 (11) MODERATE
Home & Infrastructure (8) MODERATE
Area data suggest possible HVAC concerns - talk to a local expert.
Call (844) 439-2761Paid Partner This is a free service. You will be connected with an independent service provider. We may receive compensation.
Cost & Community (8) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Round Hill
Based on local data for ZIP 20141, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Round Hill has 1 FEMA flood claim on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
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 20141 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 20141 (primary system: Round Hill, Town of), 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 20141's water come from?
The recorded water source for Round Hill, Town of, a system mapped to ZIP code 20141, is Groundwater. This system serves approximately 5,055 people.
How does Round Hill water compare to the national average?
Round Hill's Home Safety Score ranks lower than 65% of U.S. ZIP codes, and lower than 63% of ZIP codes within Virginia.
How can I get my water tested in Round Hill?
If Round Hill, Town of 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.
Is lead a concern in 20141 tap water?
The Lead and Copper Rule record selected for 20141 reports a 90th-percentile lead result of 0.00344 mg/L for a water system mapped to this ZIP (record date 2024-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 20141?
20141 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Loudoun 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 20141's water?
Yes, PFAS have been detected in samples from water systems mapped to 20141. 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.
What does the NFIP claim history show for ZIP 20141?
FEMA records contain 1 flood insurance claim filed in ZIP code 20141; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Round Hill, VA (20141): PFAS Detected in Mapped Water Systems - 67/100. https://zipcheckup.com/report/20141/
@misc{zipcheckup-report-20141,
author = {{ZipCheckup}},
title = {{Round Hill, VA (20141): PFAS Detected in Mapped Water Systems - 67/100}},
year = {2026},
url = {https://zipcheckup.com/report/20141/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 20141
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 20142 | Round Hill, VA | 1.0 mi | N/A | 0 |
| 20132 | Purcellville, VA | 3.1 mi | C | 2 |
| 20135 | Bluemont, VA | 4.3 mi | N/A | 0 |
| 20131 | Philomont, VA | 4.5 mi | N/A | 0 |
| 20134 | Purcellville, VA | 4.8 mi | N/A | 0 |
| 20160 | Lincoln, VA | 5.1 mi | N/A | 0 |
| 20159 | Hamilton, VA | 6.4 mi | N/A | 0 |
| 20158 | Hamilton, VA | 6.8 mi | C | 2 |
| 20102 | Dulles, VA | 7.6 mi | N/A | 0 |
| 20104 | Dulles, VA | 7.6 mi | N/A | 0 |
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