01-15-1980 Council Minutes - Laserfiche WebLink

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� ' , � ' Page 48 � These costs are summarized below: Alternatives Costs ($ Million)* 1 2 3 4 Total Capital Cost 338.5 481 .8 469.1 549.1 MWCC Share of Capital Cost 51 .4 70.7 68.9 85.8 Annual Operation and Maintenance 24.4 23.0 26.3 23.6 � *Based upon January 1979 dollars In addition to total costs, an evaluation was made of the financial impacts of the alternatives on individual users. MWCC will provide average and household costs at the January public meetings (see attached meeting notice) . IV. SIGNIFICANT ALTERNATIVES Significant alternatives include: A. Combined Sewer Overflow Controls including: 1 . Separation of local collection systems .2. Storage and treatment of combined sewer overflows at 17 sites throughout the Minneapolis, St. Paul and South St. Paul area. 3. Construction of a parallel interceptor system The total capital cost of combined sewer overflow alternatives range from $147 million and $340 million. B. Residual Solids Management Alternatives including: 1 . Year-round incineration of waste trea trnent sludge followed by landfill of residual ash 2. Incineration or composting of waste treatment sludge on a seasonal basi� 3. Land application of stabilized sludge in controlled landfill sites 4. Heat dried sludge followed by land application to agricultural lands C. Northwest Area Study including: 1 . Expansion of existing Anoka Treatment Plant 2. Abandonment of existing plant and completion of interceptor system to Metropolitan Treatment Plant V. OTHER TREATMENT ALTERNATIVES Remaining components of the regional alternatives include upgrade, expansion, or abandonment of existing treatment facilities. Facilities which may be abandoned, depending on the alternative include: Medina Savage Bayport Maple Plain Chaska