TY - RPRT TI - Triangle area water supply monitoring project, October 1988 through September 2001, North Carolina -- description of the water-quality network, sampling and analysis methods, and quality-assurance practices AU - Carolyn J. Oblinger PY - 2004 DO - 10.3133/ofr20041278 UR - https://pubs.usgs.gov/publication/ofr20041278 ID - ofr20041278 ER -