The Plum Creek Water Purification Facility is an existing facility located in Castle Rock, Colorado.  The improvements included in this project are; the addition of a 1.1 million gallon above grade storage tank, an Advanced Treatment Building containing Ozone, GAC, and UV treatment processes as well as solids dewatering and centrifuge equipment.  Additionally there is new solids pumping and handling equipment.  The project includes a new electrical service entrance, backup generator and associated distribution equipment.