Title: Trends in surface-water quality during implementation of best-management practices in Mill Creek and Muddy Run basins, Lancaster County, Pennsylvania
Subjects: Water quality
Places: Lancaster County, Mill Creek Watershed (Lancaster County, Pa.), Muddy Run Creek Watershed (Lancaster County, Pa.), Muddy Run Watershed (Lancaster County, Pa.), Pa.) Mill Creek Watershed (Lancaster County, Pa.) Muddy Run Creek Watershed (Lancaster County, Pa.) Muddy Run Watershed (Lancaster County, Pennsylvania