Recent Groundwater	Recent Groundwater Data displays dissolved metals for all wells sampled in the Bunker Hill Area from 1997 to 2003. Sampling units are in milligrams per liter (mg/l).
Historic Groundwater Data	Historic Groundwater Data displays dissolved metals for all wells sampled in the Bunker Hill Area from 1988 to 1993. Sampling units are in micrograms per liter (µg/l).
Recent Surface Water	Surface Water Data displays dissolved metals for surface water sample locations in the Bunker Hill Area from 1997 to 2003. Sampling units are in milligrams per liter (mg/l).
Historic Surface Water	Historic Surface Water Data displays dissolved metals for all surface water sample locations in the Bunker Hill Area from 1987 to 1993. Sampling units are in micrograms per liter (µg/l).
Query By Map (May take a few moments to download)	Current Groundwater and Surface Water Data can be selected from a map of the Bunker Hill Superfund Site. Red symbols indicate surface water sites. Blue symbols represent well locations.