While Paula was battling the elements in North Dakota, Bob Danczak and I traveled to Rifle, Colorado, to carry out some sampling in the shallow aquifer. We were able to get dissolved oxygen concentrations from lysimeters located in the vadose zone, and characterized the geochemical profile across the hyporheic zone at the Colorado River/Rifle site interface. All in all, a successful trip. Thanks to Ken Williams and Chad Hobson (LBNL) for all their help at the site!