TY - RPRT TI - Quality of surface-water supplies in the Triangle area of North Carolina, water year 2009 AU - C. A. Pfeifle AU - M. J. Giorgino AU - R. B. Rasmussen PY - 2014 DO - 10.3133/ofr20141192 UR - https://pubs.usgs.gov/publication/ofr20141192 ID - ofr20141192 ER -