http://www.fairfaxcounty.gov/dpwes/navbar/faqs/snowremoval.htm
Who clears snow at county facilities?
The Department of Public Works and Environmental Services is responsible for snow removal at most general county facilities and county-maintained park-and-ride and commuter rail station lots. Clearing is performed on a priority basis, with government centers, police and fire facilities having highest priority. For information, email the Maintenance & Stormwater Management Division or call 703-877-2800, TTY 711. Snow clearance for facilities under the jurisdiction of the county's Department of Housing and Community Development, the Fairfax County Park Authority and Fairfax County Public Schools is the responsibility of those agencies.