TY - RPRT TI - Comparison of surrogate models to estimate pesticide concentrations at six U.S. Geological Survey National Water Quality Network sites during water years 2013–18 AU - S. Alex Covert AU - Aubrey R. Bunch AU - Charles G. Crawford AU - Gretchen P. Oelsner PY - 2023 DO - 10.3133/sir20225109 UR - https://pubs.usgs.gov/publication/sir20225109 ID - sir20225109 ER -