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AGENDA ITEM <br />Prepared By: Reviewed By: Approved By: DJR <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1. Purpose. The purpose of this action item is to gain Council authorization for Bolton and Menk to <br />conduct a Stormwater pond assessment for the Browns Bay (BB), Carman Bay (CB), Crystal Bay (CY), <br />Hadley Lake (HA), Lafayette Bay (LF), Mooney Lake (MO), Peavey Lake (PL), and Smith Bay (SM) <br />Subwatersheds. <br /> <br />2. Background. In order to maintain compliance with the MS4 permit one of the action items in the <br />City’s Storm Water Pollution Prevention Plan is to develop a Pond Assessment Program. The plan covers <br />the years of the MS4 permit (2015-2020) and calls for a deliberate process of gathering/verifying current <br />data on our ponds and then using that data to determine their effectiveness in removing total phosphorus <br />(TP) and total suspended solids (TSS) from our storm water. To complete the process we divided the <br />city into its various subwatersheds with the goal of completing the assessment of a couple sub watersheds <br />per year. In 2016 we started with Long Lake (LL) and Tanager Lake (TL) sub-water sheds. In 2017 we <br />worked on French Lake (FR), Lake Classen (LC), Maxwell Bay (MB), and Stubbs Bay (SB) <br />Subwatersheds. In 2018 the focus was on the Forest Lake (FL), North Arm (NA), Painters Creek (PC), <br />and West Arm (WA) Subwatersheds. <br /> <br />3. Project Scope Assess the stormwater ponds in the Browns Bay (BB), Carman Bay (CB), Crystal Bay <br />(CY), Hadley Lake (HA), Lafayette Bay (LF), Mooney Lake (MO), Peavey Lake (PL), and Smith Bay <br />(SM) Subwatersheds to include the delineation of their watersheds, determination of pond watershed <br />characteristics and the characteristics of the ponds themselves. <br /> <br />4. Cost. Bolton and Menk provided a not to exceed estimate of $10,500 for the assessment (Exhibit A) <br /> <br />5. Funding. The assessment will be funded by the Storm Water Fund. The stormwater Fund project <br />EOY 2019 balance is $1,047,912. <br /> <br />6. Staff Recommendation. I recommend the council accept the proposal from Bolton and Menk to <br />assess storm ponds in 2019. <br /> <br />COUNCIL ACTION REQUESTED <br /> <br />Motion accept the proposal from Bolton and Menk to assess storm ponds in 2019 for a fee not to exceed <br />$10,500. <br /> <br />Exhibits <br />A. Bolton and Menk Proposal. <br /> <br /> <br /> <br />Item No.: 13 Date: January 28, 2019 <br />Item Description: Stormwater Pond Assessments <br />Presenter: Adam T. Edwards <br />Public Works Director/City Engineer <br />Agenda <br />Section: <br />Consent Agenda