2024-12-05 WS & CC Packet - Laserfiche WebLink

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been working with our consulting engineers to understand what other cities have done for small-scale storm-water re-use projects. Centerville, of course, has been doing water reuse for irrigation for quite some time, with our LaMotte Park system. However, that system’s engineering is much different; set up to reuse up to 6 Million gallons a year. A system for the city hall campus woulduse somewhere on theorder of 400,000 gallons on a good year. For a smaller scale system like this, a pre-packaged reuse system may be appropriate. Attached to this memo is some information on a stand-alone pump system used on other projects familiar to our consultants. Using stormwater for irrigation is a great way to conserve groundwater and treat stormwater runoffat the same time–a win- win. Additionally, the grassed area in front of city hall is already graded in such a way that the construction of a rain garden wouldbe very easy. Essentially, we woulddo some soil amendments(adding sand andscarifyingthe subgrade). Then, we would plant native speciesthat thrive in a rain garden. Some simple modifications to the drainage system wouldallow water to be captured in thegarden and either infiltrate orbe filtered through a draintile system. In short, staff is estimating the following costs for a proposed project: $30,000 Standard Irrigation System $20,000 Watermax Pulse $30,000 Rain Garden $10,000 Engineering,Landscape Architecture,etc. Total estimated project costs $90,000.