OMG Tour of Covanta Montgomery, Inc., Dickerson, MD 21204 Martinsburg Road, Dickerson, MD  20842 Tuesday, October 23 • 10:30 am – Noon Sign up now! Limited to no more than 30 people. LEARN WHERE YOUR TRASH GOES! The Montgomery County Resource Recovery Facility (RRF), operating as Covanta Montgomery, Inc., began commercial operation in August 1995. […]