A month after the fallen trees and downed power lines from the June 29 derecho storm have been cleaned up, President Obama has declared the District a disaster area. D.C. Mayor Vincent Gray and the D.C. Homeland Security and Emergency Management Agency announced late Tuesday afternoon they had received word from the White House that the president had granted the mayor's request for a federal disaster declaration. The declaration makes jurisdictions eligible for federal aid, meaning they could get reimbursed for all those overtime hours and cleanup costs. Maryland Gov. Martin O'Malley requested a presidential disaster declaration for six jurisdictions in Maryland last week, including Montgomery County. The June 29 event left more than 1.7 million people across the region without power. ?-- Liz Farmer