¹ Cummins, James D., Stribling, James B., and Galli, John. Biological Responses to Stream Habitat Rehabilitation in the Sligo Creek Watershed, Montgomery County, Maryland, December 1998 : Chemical, Physical, and Biological Monitoring Results from 1 Year Pre-Restoration to 2 Years Post-Restoration. Prepared for the Maryland Department of the Environment and the Montgomery Department of Environmental Protection. Interstate Commission on the Potomac River Basin Publication Number ICPRB-97-3, pg. 12.