In 2010, the first year of Park County's four-day work week, the four-day work week saved the county about $9,000 to $10,000 in energy costs as electricity usage dropped by 7.4 percent compared with 2009, and propane usage dropped by 8.7 percent. No in-depth analysis or surveys are planned by the county with respect to the effectiveness or popularity of the four-day week. Details in this week's Flume.