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Page - 6 | METROPOLITAN COUNCIL LOCAL PLANNING HANDBOOK Print Date: 8/2/2017 Checklist of Minimum Requirements for Arden Hills WASTEWATER Areas Served by the Regional System □ A table that details the households and employment forecasts in 10-year increments through 2040, based on the Council’s forecasts and any subsequent negotiated modifications. This should be broken down by areas served by the Metropolitan Disposal System, locally owned and operated wastewater treatment systems, and Community and Subsurface sewage treatment systems. The forecasts used in your wastewater plan must be consistent with the forecasts used throughout your plan, including in land use, transportation, and water supply. □ Your wastewater plan must be designed to support these forecasts and provide any allocation breakdowns between sewered and unsewered service for population, households, and employment. □ An electronic map or maps (GIS shape files or equivalent must also be submitted) that show the following information: □ Your existing sanitary sewer system identifying lift stations, existing connection points to the metropolitan disposal system, and future connection points. □ Local sewer service districts by connection point. □ Intercommunity connections and any proposed changes in government boundaries based on Orderly Annexation Agreements. □ The location of all private and public wastewater treatment plants in your community. □ Copy of any intercommunity service agreements entered into with an adjoining community after December 31, 2008; including a map of areas covered by the agreement. □ Management program for subsurface sewage treatment systems to comply with MPCA 7080. □ Current subsurface sewage treatment system ordinance. □ A table or tables that contain the following information: □ Capacity and design flows for existing trunk sewers and lift stations. □ Assignment of 2040 growth forecasts by Metropolitan interceptor facility. In the absence of this information the Council will make its own assignments for the purpose of system capacity needs determination. □ Preventing and reducing excessive infiltration and inflow (I/I), including: □ Define your community’s goals, policies, and strategies for preventing and reducing excessive inflow and infiltration (I/I) in the local municipal and private sanitary sewer systems. □ Include a summary of activities or programs intended to mitigate I/I from both public and private property sources. □ Describe the requirements and standards in your community for minimizing inflow and infiltration. □ Include a copy of the local ordinance or resolution that prohibits discharge from sump pumps, foundation drains, and/or rain leaders to the sanitary sewer system. □ Include a copy of the local ordinance or resolution requiring the disconnection of existing foundation drains, sump pumps, and roof leaders from the sanitary sewer system. □ Describe the sources, extent, and significance of existing inflow and infiltration in both the municipal and private sewer systems . □ Include a description of the existing sources of I/I in the municipal and private sewer infrastructure. □ Include a summary of the extent of the systems that contributes to I/I such as locations, quantities of piping or manholes, quantity of service laterals, or other measures. If an analysis has not been completed, include a schedule and scope of future system analysis. □ Include a breakdown of residential housing stock age within the community into pre- and post- 1970 era, and what percentage of pre-1970 era private services have been evaluated for I/I susceptibility and repair. □ Include the measured or estimated amount of clearwater flow generated from the public municipal and private sewer systems. □ Include a cost summary for remediating the I/I sources identified in the community. If previous I/I mitigation work has occurred in the community, include a summary of flow reductions and investments completed. If costs for mitigating I/I have not been analyzed, include the anticipated wastewater service rates or other costs attributed to inflow and infiltration. □ Describe the implementation plan for preventing and eliminating excessive inflow and infiltration from entering both the municipal and private sewer systems. □ Include the strategy for implementing projects, activities, or programs planned to mitigate excessive I/I from entering the municipal and private sewer systems. □ Include a list of priorities for I/I mitigation projects based on flow reduction, budget, schedule, or other criteria. □ Include a schedule and the related financial mechanisms planned or needed to implement the I/I mitigation strategy. For communities with new trunk sewer systems that require connections to the Metropolitan Disposal System, you also need to include the following: □ A table that details the proposed time schedule for the construction of the new trunk sewer system in your community. □ Describe the type and capacity of the treatment facilities, whether municipally or privately owned.