 August 2015 PWSD consummated an agreement with Castle Pines, Castle Rock, Lone Tree, Parker and Douglas County that forms a recreation authority.PWSD brings nearly two sections of land for passive recreation while the other participants bring funding and recreation experts to the deal.In August 2015, a state-of-the-art, ceramic membrane, water treatment plant to return Rueter-Hess water to PWSD potable water lines came on line.