US Groundwater Supplies on July 7, 2014, compared to 1948 to 2009 average. New study by scientists from NASA & University of CA–Irvine (UCI) found that more than 75% of water lost since 2004 in drought-stricken Colorado River Basin has come from underground sources. Published online 7-24-14, first study to quantify groundwater needed. HOPE to stop this from Coach Smallwood, @RodaleInstitute. #SmartHealthTalk @ 4:00 pm PST KCAARadio.com. An independent NBC affiliate station. Farmer owned.