The URL can be used to link to this page

Home My WebLink AboutCOUNCIL - AGENDA ITEM - 11/06/2018 - RESOLUTION 2018-105 AUTHORIZING THE CITY MANAGER TAgenda Item 12 Item # 12 Page 1 AGENDA ITEM SUMMARY November 6, 2018 City Council STAFF Mark Kempton, Water Production Manager Eric Potyondy, Legal SUBJECT Resolution 2018-105 Authorizing the City Manager to Execute an Agreement with the City of Greeley and the Water Supply and Storage Company Regarding a Dam Breach Flood Inundation Mapping Study. EXECUTIVE SUMMARY The purpose of this item is to receive authorization for the City Manager to execute an agreement with the City of Greeley (“Greeley”) and the Water Supply and Storage Company (“WSSC”) to perform a dam breach inundation mapping study for several reservoirs in the upper Cache la Poudre River basin, including two owned by the City of Fort Collins. Fort Collins is collaborating with Greeley and WSSC to perform this State- required mapping on a total of ten reservoirs in the upper Cache la Poudre River basin. A consultant has been selected who will contract directly with Greeley, while Fort Collins and WSSC will be invoiced by Greeley for the portions of the work that affect their respective reservoirs. Fort Collins is saving considerable funds by collaborating with Greeley and WSSC to perform modelling and mapping on ten reservoirs versus modelling each reservoir individually. Each entity is also saving costs by applying for a grant from the State of Colorado that covers 50% of the costs of the project. STAFF RECOMMENDATION Staff recommends the adoption of the Resolution. BACKGROUND / DISCUSSION Fort Collins owns two water storage reservoirs in the upper Cache la Poudre River basin: Joe Wright Reservoir and Halligan Reservoir. Both reservoirs are subject to the regulations of the State of Colorado’s Office of Dam Safety, which requires that all high hazard dams have an approved dam breach inundation map showing the limits of the flooding associated with a failure of the dam under certain conditions. The City’s reservoirs are considered to have “high hazard dams” under State regulations because they are dams “for which loss of human life is expected to result from failure of the dam,” which does not mean that failure is actually anticipated at this time. The maps are an integral part of the Emergency Action Plans for all high hazard dams and they allow emergency services personnel to provide adequate warning of potential flooding. Greeley and WSSC also own a total of eight dams in the upper Cache la Poudre River basin, all of which are subject to the same mapping requirements. The current inundation maps for the dams were prepared in the 1970s and are outdated. Fort Collins, Greeley, and the WSSC have collaborated to have Greeley issue a Request for Proposals (“RFP”) for a consultant to perform the modeling and inundation mapping for all ten dams. Greeley issued the RFP in August 2018 and received ten responses. A selection committee comprising of Fort Collins, Greeley, and WSSC staff selected a single consultant to contract directly with Greeley. Upon receipt of invoices from the consultant, Greeley will invoice Fort Collins for its portion of the work. An agreement between Greeley, WSSC, and Fort Collins is necessary to set the terms of the financial and operational parameters of the project. Agenda Item 12 Item # 12 Page 2 The collaboration between the three partners will provide cost saving through the elimination of duplicate modeling efforts for each dam. All the dams will share a single model, rather than paying consultants to prepare ten separate models. The State of Colorado will also hopefully provide grant funding to pay for 50% of the project cost, providing considerable cost savings to the project partners. CITY FINANCIAL IMPACTS Fort Collins is saving considerable costs through efficiencies of modelling and mapping the entire length of the Poudre Canyon once rather than for multiple dams. Fort Collins will also hopefully save 50% of the project costs through the grant from the State of Colorado. It is anticipated that the City’s total cost for the project will be approximately $17,000 after accounting for the anticipated grant. The City’s total cost would be approximately $24,000 without the grant. Funds have been appropriated in the Water Production Division Operations and Maintenance budget to cover the cost of the study. BOARD / COMMISSION RECOMMENDATION The agreement was not presented to the Water Board due to the short timeframe needed to submit the materials to the State of Colorado for the grant. PUBLIC OUTREACH No public outreach was performed as part of this agreement. The final mapping products are for emergency planning use only and are typically not released as public information due to their high security impacts. -1- RESOLUTION 2018-105 OF THE COUNCIL OF THE CITY OF FORT COLLINS AUTHORIZING THE CITY MANAGER TO EXECUTE AN AGREEMENT WITH THE CITY OF GREELEY AND THE WATER SUPPLY AND STORAGE COMPANY REGARDING A DAM BREACH FLOOD INUNDATION MAPPING STUDY WHEREAS, the City owns two water storage reservoirs in the upper Cache la Poudre River basin: Joe Wright Reservoir and Halligan Reservoir (“City’s Reservoirs”); and WHEREAS, both of the City’s Reservoirs are subject to the rules and regulations of the State of Colorado’s Office of Dam Safety in the Division of Water Resources, including the Rules and Regulations for Dam Safety and Construction, set out in at 2 Colorado Code of Regulations 402-1, which require, among other things, that all high hazard dams have an approved dam breach inundation map showing the limits of the flooding associated with a failure of the dam under certain conditions; and WHEREAS, the City’s Reservoirs are considered to be “high hazard dams” under said regulations because they have dams “for which loss of human life is expected to result from failure of the dam,” which is not meant to imply that the dams are actually anticipated to fail at this time; and WHEREAS, the City of Greeley (“Greeley”) owns six water storage reservoirs with “high hazard dams” in the upper Cache la Poudre River basin (Milton Seaman Reservoir, Barnes Meadow Reservoir, Peterson Lake Reservoir, Comanche Reservoir, Hourglass Reservoir, and Twin Lakes Reservoir) (“Greeley’s Reservoirs”); and WHEREAS, the Water Supply and Storage Company (“WSSC”) owns two water storage reservoirs with “high hazard dams” in the upper Cache la Poudre River basin (Long Draw Reservoir and Chambers Lake) (“WSSC’s Reservoirs”); and WHEREAS, the dam breach inundation mapping for the City’s Reservoirs, Greeley’s Reservoirs, and WSSC’s Reservoirs is in need of updating; and WHEREAS, the City can save money by collaborating with Greeley and WSSC on the project to update the dam breach inundation mapping by reducing unnecessary duplication and triplication of efforts; and WHEREAS, the State of Colorado has grant funds that may be applicable to the project; and WHEREAS, staff from the City, Greeley, and WSSC have negotiated an agreement to jointly update the dam breach inundation mapping, as set for the in draft Agreement attached hereto as Exhibit “A”. -2- NOW, THEREFORE, BE IT RESOLVED BY THE COUNCIL OF THE CITY OF FORT COLLINS as follows: Section 1. That the City Council hereby makes and adopts the determinations and findings contained in the recitals set forth above. Section 2. That the City Manager is hereby authorized to execute an agreement substantially in the form of Exhibit “A”, with such modifications and additional terms and conditions not inconsistent with this Resolution as the City Manager, in consultation with the City Attorney, determines to be necessary and appropriate to protect the interests of the City or effectuate the purposes of this Resolution. Passed and adopted at a regular meeting of the Council of the City of Fort Collins this 6th day of November, A.D. 2018. _________________________________ Mayor ATTEST: _____________________________ City Clerk EXHIBIT A