Water quality monitoring ... Tom Leigh, Riverkeeper with the Chester River Association, out on a water quality monitoring trip on the Chester River ... birds, Chesapeake Bay, Chester River, E...
Water quality monitoring ... Brent Walls, Watershed Coordinator/Scientist with the Chester River Association, monitoring water quality in the Chester River ... Chesapeake Bay, Chester River, Eastern, Shore, estuar...
Water quality monitoring ... Tom Leigh, Riverkeeper with the Chester River Association, out on a water quality monitoring trip on the Chester River ... birds, Chesapeake Bay, Chester River, E...
Water quality monitoring ... Tom Leigh, Riverkeeper at the Chester River Association, measuring Secchi depth, an indicator of water clarity ... Chesapeake Bay, Chester River, Eastern, Shore...
