Loading city report
Preparing Manassas Park environmental records...
Review government records associated with Manassas Park, Virginia.
Toxin Scout is in beta. Please verify important findings with the linked sources.
Loading city report
Preparing Manassas Park environmental records...
Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Manassas Park, VA from EPA SDWIS.
Manassas Park, City of
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
Purchased or imported water record · Serves 14,051 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Aug 2023 to Feb 2024.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Manassas Park drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Lower Bull Run
Reported: Nov 2026
Health-relevant causes: Pathogens, Per- And Polyfluoroalkyl Substances (pfas), Polychlorinated Biphenyls (pcbs)
Affected uses: Ecological, Fishconsumption, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
Manassas Park city County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designations apply to a specific pollutant and federal air quality standard (NAAQS). EPA can issue a clean-data determination while a formal designation remains in effect.
Washington: Ozone
NonattainmentModerate8-Hour Ozone (2015 Standard)
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
1997 Primary Annual PM2.5 Designations
Washington
EPA revoked the 1997 primary annual PM2.5 standard in this redesignated area.
Original designation: Apr 2005
Open data source: EPA final primary annual revocation ruleOpen data source: EPA designation statusHistorical designations under the revoked 1997 ozone standard
These records describe historical designations. EPA revoked the 1997 ozone standard on April 6, 2015.
Washington Area
Historical standard: 0.08 ppm (8-hour)
Historical designation: Nonattainment (NAAQS revoked) · Subpart 2/Moderate
Original designation: Jun 2004
Open data source: EPA final revocation ruleContinuing requirements have not been verified for this area.
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Aurora Hills Visitors Center — Arlington, Virginia
Annual mean: 0.2 Parts per million
Observation year: 2025
Annual mean: 17.7 Parts per billion
Observation year: 2025
Annual mean: 0.043 Parts per million
EPA primary exceedance count: 2 (Ozone 8-hour 2015)
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
Reviewed: source query run Nov 2026
Reviewed: source query run Nov 2026
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
No MSHA mine or extraction site records shown for this report.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
Special Flood Hazard Area — 1% annual chance of flooding (100-year floodplain). No base flood elevation determined.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
No records dated within the last 5 years surfaced for this city report.
Reviewed: last 5 years
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Manassas Park city, VirginiaPop. 16,703
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 5,426 | 7,297 | 7,972 |
| Poor or Fair Health | 18.0% | 14.2% | 14.2% |
| Poor Physical Health Days | 3.7 | 3.2 | 3.3 |
| Poor Mental Health Days | 4.6 | 4.9 | 4.8 |
| Adult Smoking | 14.1% | 12.9% | 15.0% |
| Adult Obesity | 37.0% | 34.2% | 34.0% |
| Air Pollution - Particulate Matter | 8.1 | 7.3 | 7.3 |
| Drinking water violation indicator | N/A | N/A | N/A |
| Diabetes Prevalence | 11.8% | 10.2% | 9.6% |
| Life Expectancy | 85.3 | 78.1 | 77.6 |
EPA testing found PFAS in water samples from the City of Manassas Park. Results dated Aug 30, 2023 to Feb 14, 2024 include PFPeA at 0.003 to 0.0045 micrograms per liter and PFHxA at 0.003 to 0.0035 micrograms per liter.
Check with the utility that serves your address for its testing results.
The EPA drinking water records available here list no violations for the City of Manassas Park.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Manassas Park.
The monitoring station at Aurora Hills Visitors Center, Arlington, Virginia recorded an annual average of 0.2 Parts per million for carbon monoxide in 2025.
The monitoring station at Aurora Hills Visitors Center, Arlington, Virginia recorded an annual average of 17.7 Parts per billion for nitrogen dioxide in 2025.
The monitoring station at Aurora Hills Visitors Center, Arlington, Virginia recorded an annual average of 0.043 Parts per million for ozone in 2025.
We don't have county radon data for Manassas Park yet.
No Superfund or brownfield sites were returned for this city report.
The county data for Manassas Park reports a life expectancy of 85.3 years in Manassas Park city, Virginia.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Manassas Park reports 5,426 years of life lost to deaths before age 75 per 100,000 residents in Manassas Park city, Virginia. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Manassas Park lists fine-particle pollution (PM2.5) at 8.1 micrograms per cubic meter in Manassas Park city, Virginia.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
Federal pipeline records list an incident involving Columbia Gas of Virginia Inc near Manassas Park on Aug 29, 2016. The reported release was natural gas.