TY - RPRT TI - Estimates of deep-percolation return flow beneath a flood- and a sprinkler-irrigated site in Weld County, Colorado, 2008-2009 AU - L. R. Arnold PY - 2011 DO - 10.3133/sir20115001 UR - https://pubs.usgs.gov/publication/sir20115001 ID - sir20115001 ER -