The 10th Scalable Tools Workshop (formerly the Petascale Tools Workshop and CSCADS Workshop on Petascale Tools) will be held July 31st-August 4th this year at the Granlibakken Resort in Lake Tahoe, California. As in previous years, we will begin with presentations of people's work, and will then break up into working groups to tackle real technical problems for the second half of the workshop. Dinner on Sunday evening will be from 6:00 to 7:30pm.