TY - RPRT TI - Simulation of groundwater flow in the aquifer system of the Anacostia River and surrounding watersheds, Washington, D.C., Maryland, and Virginia AU - Jeff P. Raffensperger AU - Lois M. Voronin AU - Cheryl A. Dieter PY - 2021 DO - 10.3133/sir20135225 UR - https://pubs.usgs.gov/publication/sir20135225 ID - sir20135225 ER -