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City of Arden Hills – 2030 Comprehensive Plan Approved: September 28, 2009 E-8 Communities with excessive I&I are required to develop plans and reduce their I&I. If I&I is not reduced in the community with excessive I&I, the MCES will impose a surcharge. The MCES first imposed a surcharge on the City in 2007. This surcharge has been $100,100 a year for the five years between 2007 and 2012. The City of Arden Hills continues to be a community with inflow and infiltration (I&I) challenges. If the MCES I&I goals for the communities are exceeded, the community will receive a letter stating that a particular event has caused an exceedance. Arden Hills has received three notices since 2012. There was an exceedance in MCES Sewer Meter District MO51 from a June 21, 2013 storm as well as two more exceedances due to a June 19, 2014 storm. One was in MCES Sewer Meter District MO51 and the other was in MO54. Based on current readings that the MCES has taken from several monitoring points, the new surcharge is estimated at $76,775 a year for four years, beginning in 2015. The City is examining its sanitary sewer system to identify areas that are contributing to the I&I problem, and the City will take the necessary measures to reduce and/or eliminate the surcharge. In order to gain some economics of scale and to take advantage of the recent grant programs from the MCES, Arden Hills has been undertaking a larger I/I reduction project in odd numbered years focusing on reducing I&I in the MO51 and MO54 meter districts. Appendix G of the 2030 Comprehensive Plan outlines the City’s objectives, policies, strategies and implementation plan to achieve reduction in I&I. 10. PROPOSED CAPITAL IMPROVEMENT PROGRAM (CIP) A number of trunk sanitary sewer improvements have been identified that should be considered as a part of the City’s future Capital Improvement Program (CIP) to address deficiencies in the system. A summary of these improvements and a proposed schedule for their completion is listed below:  Sewer Rehabilitation/Lining in year 2015 at $500,000  Reconstruction of Lift Station 11 in 2016 at $253,000  TCAAP Sanitary Sewer South Lateral Extension and Lift Station Construction in 2016 at $1,200,000  Sewer Rehabilitation/Lining in year 2017 at $400,000  Sewer Rehabilitation/Lining in year 2019 at $400,000  TCAAP Sanitary Sewer North Lateral Extension at a date to be determined at $250,000 The schedule for a number of these improvements may be impacted by development pressure and the availability of funding and grants.