05-24-1993 Council Minutes2 - Laserfiche WebLink

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1 PROJECTIONS 1990 2000 2010 1 1 (SEWERED)CITY COUNCIL cm'COUNQL cm'COUNQL POPUT-ATION 4430 4400 4670 5300 4700 5800 HOUSEHOLDS 1692 1700 1900 2000 2000 2300 EMPLOYMENT 925 1400 1100 1700 1300 1800 FLOW IN MGY*208 190*234 255-283 252 285-331 • - Million gallons per year The city’s socioeconomic projections for sewered areas are less than those prepared by the Council for the years 2000 and 2010. There is sufficient capacity in the metropolitan sanitary sewer system to accommodate planned growth in the city through the year 2010. Measured wastewater flo’vs increased significantly from 190 million gallons in 1990 to 241 million gallons in 1991. The jo^e has been attributed to infiltration/inflow (I/I) in the municipal sanitary sewer system. The city has proposed to update its 1981 HI Analysis to reflect current flow data; analyze the extent, sources and possible solutions to the current I/I problems; identify and proceed with those solutions that are feasible and cost-effective; and initiate an inspection program to eliminate the illegal discharge of roof water, groundwater, and foundation drainage into its municipal sanitary sewer system. As part of this Analysis update, the city has also proposed to initiate an ongoing process to continually evaluate flow data for city-owned pump stations in an attempt to identify problems as they occar. Council staff concurs with this city proposal, and recommends that the city proceed with its plan to update is 1981 HI Analysis. The city has also indicated that it will provide an annual progress report to the Metropolitan Waste Control Commission (MWCC) of actiom taken to solve I/I problems. Council staff concurs with this city proposal, and recommends that the city proceed with its plans to prepare annual progress reports on eliminating I/I, and ask that the city provide a copy of the report to the Council for review. The proposed 1981 HI Analysis update, inspection program to eliminate illegal clear water connections, and annual progress reports address concerns expressed by the Council in its r<nriew of the 1992 Stubbs Bay Area Metropolitan Urban Service Area expansion (see Referral f \ic 15690-1). Surface Water Quality In 1992, the Metrop>olitan Council adopted an Interim Strategy to Reduce Nonpoint Source Pollution to All Metropolitan Water Bodies. The strategy requires local governments to amend their comprehensive plan, land use controls, and stormwater plan to control the quality of stormwater runoff and adopt the revised statewide shoreland regulations. The Interim Strategy requires local governments to adopt and apply the MPCA’s urban best management practices manual titled Water Quality in Urban Areas or its equivalent, and the Nationwide Urban Runoff