TY - RPRT TI - Determining sources of water and contaminants to wells in a carbonate aquifer near Martinsburg, Blair County, Pennsylvania, by use of geochemical indicators, analysis of anthropogenic contaminants, and simulation of ground-water flow AU - Bruce D. Lindsey AU - Michele L. Koch PY - 2004 DO - 10.3133/sir20045124 UR - https://pubs.usgs.gov/publication/sir20045124 ID - sir20045124 ER -