TY - RPRT TI - Biotic, water-quality, and hydrologic metrics calculated for the analysis of temporal trends in National Water Quality Assessment Program Data in the Western United States AU - Stephen M. Wiele AU - Anne M.D. Brasher AU - Matthew P. Miller AU - Jason T. May AU - Kurt D. Carpenter PY - 2012 DO - 10.3133/ofr20121203 UR - https://pubs.usgs.gov/publication/ofr20121203 ID - ofr20121203 ER -