To: Honorable Mayor and Members of Town Council
Through: David L. Corliss, Town Manager
From: Mark Marlowe, P.E., Director of Castle Rock Water
Matt Benak, P.E., Water Resources Manager
Title
Resolution Authorizing Payment of the Capital Assessment Levied by the Cherry Creek Project Water Authority for Phase Two of the Walker Reservoir Construction Project [Located in Douglas County near Franktown, CO]
Body
________________________________________________________________________________
Executive Summary
The purpose of this memorandum is to seek Town Council approval by Resolution (see Attachment A) of Castle Rock’s portion of the Cherry Creek Project Water Authority (CCPWA) well construction and other capital infrastructure work associated with phase two of the Walker Reservoir construction project.
Castle Rock entered into a Project Participation Agreement (Attachment B) with the CCPWA in September 2021 for the construction of Walker Reservoir. Reservoir construction has been ongoing (HPM Contracting is the General Contractor) with construction completion anticipated in Fall/Winter 2023. The second phase of the Walker Reservoir Project is for the wells and other associated infrastructure necessary to fill the reservoir. CCPWA’s total approved budget in 2023 for this phase is $3,662,500 and includes well drilling and equipping; site improvements; pipelines; grading and erosion control; and professional services during construction. Based on the Town’s ownership percentage of the CCPWA (41.25%), the capital costs associated with this second phase of the project are equal to $1,510,781.25.
CCPWA’s consultant (HRS Water Consultants) has designed three alluvial wells and one Denver Basin (Arapahoe Aquifer) well to be used to pump water into Walker Reservoir. The well locations are shown on the location map as Attachment C.
CCPWA received and evaluated bids for the construction work related to the wells. The Arapahoe Aquifer well drilling and equipping has been awarded to Hydro Resources in the amount of $1,257,778 and the alluvial well drilling and equipping has been awarded to Layne Christensen in the amount of $1,390,635. Farnsworth Group has been awarded the site civil and pipeline design contract and is currently developing the construction drawings. Well drilling operations will commence in March 2023.
Staff Recommendation
Castle Rock Water Commission and Staff recommend that Town Council approve the capital payment to CCPWA for the construction of the wells associated with the Walker Reservoir Project.
Proposed Motion
“I move to approve the Resolution as introduced by title.”
Alternative Motions
“I move to approve the resolution as introduced by title, with the following conditions: (list conditions).
“I move to continue this item to the Town Council meeting on _____ date to allow additional time to (list information needed).”
Attachments
Staff Report
Attachment A: Resolution
Attachment B: Project Participation Agreement
Attachment C: Location Map