Water Committee Agenda and Packet 2015 11 13

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City Council Water Committee Meeting Minutes Friday, April 3, 2015 Page 3of6 In December of 2014, a Record of Decision was issued, which identifies Chimney Hollow as the preferred alternative. A Carriage Agreement was also signed with the U.S. Bureau of Reclamation that authorized the use of the C -BT project's infrastructure for conveyance of Windy Gap water. Upcoming estimated regulatory completion dates are: i. 401 Certification — June 22, 2015 ii. 404 Permit — September 3, 2015 iii. Water Rights Decree — November 6, 2015 iv. Design Consultant Selection — November 27, 2015 • Gross Reservoir Update Paul Flack explained that Denver Water is expanding the capacity of Gross Reservoir. As part of the environmental approval process, Denver Water was required to create an environmental pool, which is an amount of water that is stored in Gross and is released to South Boulder Creek to promote aquatic life. Lafayette originally signed up to provide water for the environmental pool, but that City may not need the full storage amount they originally requested, and Louisville may be able to participate in storing a portion of its water in the environmental pool. In order for Louisville to qualify, the City has to show an environmental benefit from the water it's storing, which staff is currently reviewing. If this benefit can be shown, Gross Reservoir could become a realistic opportunity to increase Louisville's local basin water storage. VIII. Update — CIP Projects (Dmitry Tepo /Kurt Kowar) • Wastewater Treatment Plant Upgrades i. Status: bidding construction phase, bid opening on April 22 ii. Engineer's estimate: $29 million total construction cost before grants. Dmitry Tepo mentioned that the City received $1 million grant with the rest of the project financed with a bond. The current bond amount is $43 million, which includes this project and the Louisville /Lafayette Drainageway Improvements. That amount is a very conservative estimate and staff is not planning to spend $43 million. Kurt Kowar mentioned that if project bids are high, other options are requesting a compliance extension for wastewater discharge limits from the Colorado Department of Public Health and Environment or postponing the Drainageway Improvements project. • Louisville /Lafayette Drainageway Improvements i. Status: final design, construction bid advertisement dependent on permitting. ii. Engineer's estimate: $9 million total cost before UDFCD & City of Lafayette contributions.