05-04-2015 Council Packet - Laserfiche WebLink

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irrigation purposes. This idea has the ability to address both stormwater management requirements and address water conservation goals. Mattamy Homes is anticipating submittal of a development application in 2015. While no city approvals have been granted, the project, regardless of its final form, will require large areas of stormwater ponding and contain a significant amount of open space and public park land. Irrigation and seasonal non-domestic use accounts for an estimated 1/3 of the city's annual residential water use. Accordingly staff is interested in evaluating the opportunity to establish a stormwater irrigation system to serve the entire property. The ability to establish a system like this would help to meet stormwater volume and water quality requirements while reducing groundwater pumping demands. The study would evaluate water demand, stormwater availability, irrigation quantities, reduction in potable water use and provide preliminary design schematics for a system. It would also investigate funding alternatives and ordinance/policy revisions. The overall study would provide a framework to evaluate and implement this approach to new development city wide. WSB is proposing to complete the study for an estimated fee of $13,400. Both studies are proposed to be funded from the City's Trunk Utility Area and Unit fund. Requested Council Direction Staff is requesting council direction regarding: 1) Interest in pursuing the LCCMR grant to fund an Integrated Water Management Plan. 2) Interest in preparing a feasibility study to evaluate potential for establishing a Stormwater Reuse and Irrigation System. Attachments 1. Integrated Water Management Plan Proposal 2. Mattamy Development — Stormwater Reuse and Irrigation System Proposal