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Proposed options: • Option #1 - Move forward with pump improvements as proposed. o Estimated Total Cost = $185,000, which includes 10% construction contingency and 27% overhead. o Applying the $56,000 RCWD cost -share, the remainder to determine funding for is $129,000. o Per previous scenarios, two are shown here, but Council may adjust however they see fit. To align with the previous Council decisions, the 27% overhead is removed from the estimate; therefore, the total to be split is $89,670. Council can include overhead if they so choose. ■ Scenario #1, split 50150 between the City and the KLID. Only the construction as -bid costs are split; the indirect and overhead costs were not included. • City cost = $44,835 • KLID cost = $44,835 ■ Scenario #2, 100% of the materials and construction costs (no indirect or overhead costs included) levied to the property owners within the KLID. • KLID cost = $89,670 o Determine levy term (2 and 3 years have been used in the past). Option #2 - Remove pump improvements from project scope, only address the erosion issue on the slope near the pump per the Resolution (Attachment H). This would require replacement of the retaining wall with a similar design to allow access for maintenance, as is how it is operated today. Due to construction impacts, the control panel will need to be relocated and likely replaced. o This option would be only City cost at approximately $100,000 to $125,000. o RCWD cost -share would not be utilized as it is specific for the pump improvements. Public Works recommends moving forward with the proposed pump improvements, Option #1, Council will need to choose which Scenario or create an alternate Scenario. The City benefits from the improved water quality as the pump discharges ultimately to Lake Valentine, which is considered an impaired water. These improvements can be used to show the City is implementing BMPs to reduce pollutants and meet what is called the Total Maximum Daily Load (TMDL) limits, a requirement of the MS4 Permit. The proposed improvements will also simplify Public Works operations and become compliant within the existing DNR Permit requirements related to consistent monitoring Having the pump turn on and off automatically will ensure immediate response time to the elevation of the lake level. Installation of the pump will be within a structure on top of the slope rather than scaling the existing retaining wall to deploy a floating pump system into the lake. Having the pump within the structure will prevent vandalism. KLID consists of 46 lakefront property owners, the City of Arden Hills is not included in the district. A map is provided on page 5 of Attachment A. Through further research, staff found that the costs cannot be allocated as a uniform assessment to all properties. Rather, it will consist of the levy ad valorem taxes on properties within the district. As such, the amount will vary depending on the homeowner's market value, corresponding with the actual bid price for the proposed project. Budget Impact A RCWD cost -share of $56,000 was awarded to Arden Hills. Page 3 of 4