2003-12-23 CC Packet - Laserfiche WebLink

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SANITARY SEWER SYSTEM A. INTRODUCTION The City of Centerville operates a sanitary sewer collection system which serves approximately 98% of the building units in the community. The layout of this system. (constructed or under contract) is shown by Exhibit 1. The construction and facilities aging schedule is shown by Table 1. In 1997, the City adopted its Comprehensive Plan, which incorporates a Comprehensive Sewer Plan that addresses future service in the City. The City has oversized the sewer mains and has a total of four lift stations. No work has been done to evaluate a comprehensive approach to areas south of CSAH #14. The City should complete a comprehensive approach to serve areas not within the Metropolitan Urban Service Area (MUSA.) The development pressures will require that the City complete an overall plan to provide for construction as a comprehensive approach to lift station development. B. CURRENTSTATUSOFFACannES In 1998 the City participated in an inflow and infiltration (III) reduction project with the Metropolitan Waste Control Commission (MWCC). The City identified the extent of the inflow problem with the manholes as part of a grant program with the Met Council. In the meantime, Centerville is restricting to maintain the current rate of growth. In the years 1999-2000, the Met Council upgraded the forcemain in the City. It is generally expected that the life cycle of sanitary system components would be as follows: Table 1- Sanitary System Schedule ComDonent Life Exoectancv Sewer Lines Service Lines Manholes Forcemain Pump Station Structures Pumping Equipment Control Equipment Standby Power 80-100 years 80-100 years 40-60 years 80-100 years 40-60 years 15-25 years 10-20 years IS..2Syears 4