Bettge, who lives in the McKay Landing neighborhood, has already done a lot to her home in order to make it energy- and water-efficient. On a cool Monday morning, she was tackling the efficiency of her outdoor sprinkler system. She was worried it was spraying too much water onto her sidewalk and not enough on her grass and tree-lined landscaping. Bettge called in an expert from the Center for ReSource Conservation, or CRC, a nonprofit that works with cities, including Broomfield, to conduct outdoor water audits. The program provides the free audits to residents who want to reduce their usage when they water their lawns.