04-04-2016 Council Packet - Laserfiche WebLink

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Feasibility Report Mattamy Homes Water Reuse WSB Project No. 2988-01 1. EXECUTIVE SUMMARY The proposed Mattamy Homes Development is a 400 acre residential development located east of Interstate 35E and north of Main Street in the City of Lino Lakes. Surface water management for the project would include storm water quality, storage and rate control. The storm water storage area will hold a significant amount of water that can be used to provide irrigation verses conventional groundwater use for irrigation. Over the past three years, management of both surface water and groundwater resources have received increased awareness both locally and regionally. Lino Lakes is included in the North and East Metro Groundwater Management District established by the Department of Natural Resources (DNR). The goal is to protect of water resources through sustainable water use solutions such as the one being proposed. The water reuse project was evaluated through a water balance analysis and multiple options for an irrigation reuse system. The options for an irrigation reuse system are: 1. Irrigate the park and public spaces 2. Irrigate the townhomes, park, and public spaces 3. Irrigate the entire development, including single-family residences The options were evaluated based on the estimated costs, ownership, storm water requirements, and maintenance. Option 2 is recommended: it includes irrigat ion of the townhomes, park and public spaces. The estimated project cost for Option 2 is $463,000 which includes 10% construction contingency and 20% indirect costs. Funding for the project is proposed through development fees generated from surface water management fees, and City trunk water system funds. This project is feasible and cost-effective from an engineering standpoint, and should be constructed as proposed herein.