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Home My WebLink About2015-053 Council Resolution1 • • CITY OF LINO LAKES RESOLUTION NO. 15-53 AUTHORIZING FEASIBILITY STUDY FOR DEVELOPMENT OF A WATER REUSE/IRRIGATION SYSTEM WHEREAS, Mattamy Homes is proposing to develop a 360 acre residential development in the City of Lino Lakes; and WHEREAS, the City finds that reuse of stormwater may provide a benefit to the public by reducing demand for potable water, improving water quality and reduce stormwater runoff volumes; and WHEREAS, the City is interested in determining the feasibility of developing a stormwater reuse and irrigation system; and WHEREAS, WSB & Associates, has submitted a proposal to perform such services; NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LINO LAKES, MINNESOTA: 1. That staff is authorized to enter into an agreement with WSB & Associates to prepare a feasibility study for development of a water reuse/irrigation system the amount of $13,400. Adopted by the Council of the City of Lino Lakes this 8th day of June, 2015. The motion for the adoption of the foregoing resolution was introduced by Council Member Rafferty and was duly seconded by Council Member Stoesz and upon vote being taken thereon, the following voted in favor thereof: Rafferty, Stoesz, Roeser, Kusterman, Reinert The following voted against same: none ATTEST: --Julia 1ne Bartell, Cit Cle Jeff Rein ', .yor • • CITY COUNCIL AGENDA ITEM 6E STAFF ORIGINATOR: Michael Grochala MEETING DATE: June 8, 2015 TOPIC: Consider Resolution No. 15-53, Authorizing Feasibility Study for Development of a Stormwater Reuse and Irrigation System. VOTE REQUIRED: 3/5 INTRODUCTION Staff is requesting City Council consideration to authorize a feasibility study for the development of a stormwater reuse and irrigation system. BACKGROUND 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. The City is currently completing the NE Lino Lakes Drainage study covering a 1,400 acre area. Council members recently attended the Water Summit hosted by the City of Hugo discussing the White Bear Lake/DNR settlement agreement. Internally, staff has been discussing with WSB, city engineer, opportunities for improving the efficient use of both surface water and groundwater resources. At this time staff is requesting council consideration of a proposal submitted by WSB to evaluate the feasibility of establishing a stormwater reuse and irrigation system. The NE Lino Lakes Drainage study currently in progress identifies water reuse as a potential best management practice within the drainage area to offset limited infiltration ability. Recent successful projects including the Oneka Ridge golf course irrigation conversion has led to increased awareness of the opportunities for using stormwater for 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. The study is proposed to be funded from the City's Trunk Utility Area and Unit fund. The Environmental Board reviewed the proposal at its May 27, 2015 meeting and recommended approval. RECOMMENDATION Staff is recommending approval of Resolution No. 15-53. ATTACHMENTS 1. Resolution No. 15-53 2. Stormwater Reuse and Irrigation System Study Proposal • • • • • Ak WSB ,,,,. engineering planning. environmental construction April 29, 2015 Mr. Michael Grochala Community Development Director 600 Town Center Parkway Lino Lakes, MN 55104 701 Xenia Avenue South Suite 300 Minneapolis, MN 55416 Tel: 763-541-4800 Fax: 763-541-1700 Re: Proposal and Fee Estimate for Professional Engineering Services Mattamy Homes Development Stormwater Reuse and Irrigation System Feasibility Study City of Lino Lakes, MN Dear Mr. Grochala: WSB & Associates, Inc. (WSB) is pleased to present this proposal to the City of Lino Lakes (City) to provide professional engineering services for developing a feasibility study (Study) for stormwater irrigation at the Mattamy Homes development. The Mattamy Homes development is located north of County Road 14 between 20th Avenue North and Interstate -35E. The City hopes that irrigation in the development can be entirely achieved using stormwater withdrawal from the development's retention ponds. The development's system is unique in that individual homes will connect directly to the irrigation system and each residential home will retain control over the irrigation system. To ensure this goal is achievable, the proposed Study conducted by WSB will include the following tasks specific to the Mattamy Homes Development: 1. Water balance model including estimated irrigation quantities, anticipated potable water usage reduction, anticipated pond water volumes/levels, and estimate stormwater runoff based on historical rainfall; 2. Preliminary design schematics for the irrigation system including filtration, pumps, and piping; 3. Cost estimate and funding alternatives for system; and 4. Preliminary ordinance review to identify possible policy revisions for irrigation system controls/ownership. WSB's project scope and proposed work plan as presented is based on our understanding of the project, discussions with City Staff, and experience on similar projects. The following are the major tasks that will be performed in preparing the City's stormwater reuse and irrigation system feasibility study. Equal Opportunity Employer wsbeng.com C\Oxn\diene hankee AppData\LocalUMkro+n(t\Windows\'femporarc Internet Fib\Content-Outlook\ERBAAUDX\942915 LTR PROP - Lino Lakes& • • Mr. Michael Grochala April 29, 2015 Page 2 Task 1: Project Management and Coordination Project management is a key task included in each project undertaken by WSB. This task consists of management and administration, project coordination, and overall communication with the City. Proper completion of this task will help keep all affected parties routinely updated and informed regarding project issues, as well as keep the project on schedule and within budget. The proposed work plan will include one meeting with the City prior to finalizing the Study to discuss results. Task 2: Water Balance Development Task 2.1: WSB will develop a model to predict the annual stormwater available for irrigation. The model will take into consideration historical precipitation, drainage area, pond size, evaporation, and irrigation demand. The model will estimate volume reduction credits, if desired, generated by the project. WSB will work directly with the developer to obtain the necessary grading and preliminary plat information necessary for this task. Task 2.2: A technical memorandum will be submitted with the model results. The memorandum will summarize methods used during model creation, assumptions made, and implications for irrigation design. Task 3: Preliminary System Design Task 3.1: The number of required pumping zones will be estimated based on flow and pressure requirements. Upon this determination, the zones will be delineated and mapped. Task 3.2: The irrigation networks for each pumping zone will be proposed and drawn on a schematic. The networks will minimize cost and ensure landowners can attach individual irrigation systems to the network. Task 4: Cost Estimates and Funding Alternatives Task 4.1: The total project costs for project implementation will be estimated and submitted in a spreadsheet. The estimate will consist of a per unit flat fee for water users and will consider the results of the water balance and potable water requirements in rate determination. Task 4.2: A cost recovery spreadsheet will be developed to assist City planning, including installation and maintenance. Grant opportunities will be considered as alternatives. Task 5: Preliminary Ordinance Review and Proposed Policy Revisions Task 5.1: The City's existing ordinances will be reviewed to evaluate if policy revisions will be necessary to implement a water reuse and irrigation utility. Task 5.2: If deemed necessary, policy revisions will be recommended in the final feasibility report. This task does not include fees associated with the ordinance revisions; however, that service can be provided in requested under a separate scope of work. C.\UsersWianehart AppData\LDeal\berosoft\Windows\'1'c.niwran Internet Flies \Cont.nt Ontlook\ER8.MUDX\o4^_915 LTR PROP - Lino lakes docx Mr. Michael Grochala April 29, 2015 Page 3 Task 6: Final Feasibility Report Preparation Task 6.1: WSB will prepare a draft feasibility report for and submit for City review. WSB will incorporate any comments provided by the City into the final report preparation. Task 6.2: WSB will prepare the final feasibility report incorporating any comments provided by the City on the draft report. WSB can present the findings at a City Council meeting if desired. Estimated Fee WSB will complete the proposed work plan as proposed herein on an hourly basis with an estimated fee of $13,400. The hourly breakdown by task for each employee class proposed for the project is included on the attached spreadsheet. The proposed fee is based on our 2015 rate schedule. Schedule WSB will complete the feasibility study within 2 months of receipt of a written authorization. This represents our total understanding of the project and proposed scope of services. If you are in agreement with the scope of services, please sign the bottom of this letter and return a copy to WSB. Our receipt of an executed copy will be WSB's authorization to proceed. Should the City request additional services outside of the above scope of services, we will work with you to establish a revised scope and fee. Please contact me at your convenience at 651-286-8457 if you have any questions or concerns related to this proposal as presented. We appreciate the opportunity to assist you and your staff with the completion of this project. Sincerely, WSB & Associates, Inc. 1 ie Wallerstedt, PE Project Manager Attachments cc: Diane Hankee, WSB & Associates, Inc. kkp Accepted by City of Lino Lakes By Title Date C \IJsers43hankee\AppData\Local\Microsoft\Wndows\Temlwr an Internet FlestConteot OutIOOk\ERBAAIIIJX\0J_'915 LTR PROP - l.mo I.akesdocs