Imported supplies

While securing local water rights and conserving existing water supplies are important, the Town's plan also includes looking at regional partnership opportunities to further secure the community’s water future. In particular, the Legacy Water Projects include WISE Water and the Box Elder projects. They are also known as the alternate source of supply projects. These projects are designed to import water from Denver, Aurora, and other water rights the Town is purchasing on the South Platte River north of Denver.

Alternate source of water supply

In October 2012, Town Council voted in favor of pursuing a hybrid solution for the Town's long-term water goals. Town staff entered into negotiations with Stillwater Resources and WISE partnership, which could result in renewable water being imported into the Town by early 2018. For more information, view a timeline of this process.

South Metro Water Supply Authority

The South Metro Water Supply Authority has been instrumental in developing opportunities for smaller Front Range water providers to partner with larger ones, such as Denver and Aurora. The authority is also implementing studies and projects as identified in the Regional Water Master Plan.

WISE Partnership

In 2009, Castle Rock Water became part of the WISE Partnership. That partnership of 10 South Metro organizations signed agreements to import renewable water from Denver and Aurora. To date, the Town has invested approximately $36 million into pipelines along E-470 to Rueter-Hess Reservoir, and from the reservoir to Castle Rock. These pipelines, along with pumps and tanks are in various stages of completion with WISE water anticipated by early 2018. These pipeline investments are a critical piece of the system that will not only allow Castle Rock Water to import WISE water but also bring water from the Box Elder project. 

Box Elder project

Castle Rock has Water invested about $27 million into the water rights in the South Platte River, north of Denver in Weld County. That’s about 72 percent of the total water rights targeted for purchase in the Box Elder project. The Town has purchased the Box Elder well field in Weld County that could be used to divert these water rights, and has also secured capacity in the Keenesburg Pipeline - another key piece of infrastructure for transporting the imported water from Box Elder.

Securing the remaining water rights for this project will be a focus in the next several years. Many of the details of the Box Elder project are still in the planning stage, but with the goal to bring water from this project to Castle Rock sometime after 2025. 

Both of these Legacy Water Projects are important to the community and have become a good fit into Castle Rock Water’s overall long-term water puzzle.

East Cherry Creek Valley Water and Sanitation District Northern Pipeline

An agreement to purchase capacity in the northern pipeline has been negotiated and is available to all South Metro Water Supply Authority members. The Town is planning to purchase additional capacity in this pipeline and is actively negotiating directly with the authority members and East Cherry Creek Valley Water and Sanitation District (ECCV) on the final share of the pipe's capacity and cost. 

WISE infrastructure construction

As Castle Rock Water works to secure the community's long-term water plan, the WISE project continues to make progress. There are several pieces to the local infrastructure and each are currently in design, under construction or have been completed. The total WISE expenditures are budgeted at $52.3 million. Pipeline project updates are available below. 
WISE pipeline status map
Ridgegate Pipeline (blue)
The pipeline and Rueter-Hess Water Treatment Facility upgrades were complete in mid-2017.

Existing Parker Water and Sanitation District Pipeline
Castle Rock Water partnered with Parker Water and Sanitation District on a study of the hydraulics of the WISE water flow. The study is complete and discussions regarding additional infrastructure design / construction are underway.

Canyons North Line (red)
The Canyons North Line will convey WISE water from Parker Water and Sanitation District’s existing infrastructure near Rueter-Hess Reservoir to the Town. The work is scheduled to be complete by late 2017 / early 2018. The cost for this work will be split between Parker Water and Sanitation District and Castle Rock Water. Dominion is working on a lease-purchase agreement with the Town of Castle Rock to purchase capacity in the pipeline also.  

Pipeline to Ray Waterman Water Treatment Plant
The final leg of the local infrastructure is currently under construction and completion is expected by late summer 2017. This pipeline connects WISE water to Ray Waterman Water Treatment Plant for distribution to Castle Rock residents. 
Existing WISE / Box Elder Pipeline (pink - top of map)
The Western Pipeline modifications to provide additional imported supply are complete and some South Metro communities are already using WISE water.

Additional modifications and construction projects along the pipeline that are complete include
the Quebec Street Water Treatment Plant which provides disinfection and the Smoky Hill Tank that aids in pressure regulation.
Smoky Hill Tank