The stormwater BMP data is comprised of points (dry ponds, wet ponds, underground detention, etc.). These points identify the general location of BMPs within Loudoun County, Virginia, and provide infomation about the BMP type and general maintenance. The data was collected primarily in eastern Loudoun in the more urbanized areas of the County; however, this data constantly changing. Updates to this database are generated bi-annually. For more current information contact Loudoun County Stormwater Management.