TY - RPRT TI - Characterization and data-gap analysis of surface-water quality data in the Piceance study area, western Colorado, 1959–2009 AU - Judith C. Thomas AU - Jennifer L. Moore AU - Keelin R. Schaffrath AU - Jean A. Dupree AU - Cory A. Williams AU - Kenneth J. Leib PY - 2013 DO - 10.3133/sir20135015 UR - https://pubs.usgs.gov/publication/sir20135015 ID - sir20135015 ER -