From 9News.com (Lori Obert):
Nearly 700 homeowners in Douglas County signed up for a free sprinkler upgrade. They are water-efficient sprinkler heads that distribute less water over a longer period of time. That means less runoff which is a waste. And the roots get what they need.
Nine college students were hired to supervise crews of 36 high school students who were trained to do the retrofits as summer jobs…
A grant from the Colorado Water Conservation board paid for the sprinkler upgrades. Douglas County Water says the rotary nozzles are 30 percent more efficient than the old sprinkler heads. The hope is for this program to spread to other communities in Colorado.
More conservation coverage here.