2010-04-27_PWETC_AgendaPacket - Laserfiche WebLink

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POLICIES The Council will not provide additional capacity within its interceptor system to serve excessive inflow and infiltration. The Council will establish inflow and infiltration goals for all communities discharging wastewater to the Metropolitan Disposal System based on the designed peak-hour capacity of the interceptor(s) serving the community. Communities that have excessive inflow and infiltration in their sanitary sewer systems will be required to eliminate the excessive inflow and infiltration within a reasonable time period. IMPLEMENTATION STRATEGIES The Council will continue to use the current design standards for interceptors. The Council will develop inflow and infiltration goals for all communities based on the designed peak-hour capacity of the interceptor(s) serving the community as well as guidelines for the preparation of the local inflow and infiltration programs. The Council will ask all communities served by the MDES to begin the development and implementation of an inflow and infiltration program as soon as practicable and require the communities to include that program within their next comprehensive plan. Communities with excessive UI will need to develop plans that reduce their UI. Communities currently within their I/I goals will need to develop plans for maintaining acceptable levels as the local infrastructure ages. The Council will provide the communities with a tool box of UI reduction options that can be used by the communities in the preparation of their plans. ® Peak inflow during wet weather conditions will be measured by either the MCES metering system or by installation of temporary monitoring equipment in the sanitary sewer system. The Council will use its metering system to monitor wet weather events and notify communities when their peak hourly flows exceed the I/I goals for their communities. Meter data by stormwater events are available and can be provided to the communities upon request to help them evaluate their sanitary sewer systems. ® The Council will require the community to reduce its inflow and infiltration to reach the design flow standard for each connection point to the MDS by no later than 2012. Under the requirements of the Metropolitan Land Planning Act communities have three years to update their comprehensive plans once the Water Resources Management Policy Plan has been updated. Thus, the Council expects all communities to have an updated plan by 2008. As part of the comprehensive plan, the Council is requiring that the community include an I/I program that will study I/I issues and adopt afive-year schedule for improvements to their system to meet the I/I goals. ® The Council will limit increases in service within those communities where excessive inflow and infiltration jeopardizes MCES's ability to convey wastewater without an overflow or Updated 3/31/2010 9:34 AM BJP