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HomeMy WebLinkAboutRexburg Evaluation MatrixWeighted TotalProjected Construction and 20-Year O&M CostEvaluation Weight Option 1 - Expand Headworks 2 6 -1 -3 0 0 0 0 1 5 1 3 -1 -3 1 5 -1 -5 2 10 18 2,116,022$ Option 2 - New Headworks 2 6 -1 -3 0 0 0 0 1 5 2 6 -2 -6 1 5 -2 -10 2 10 13 2,915,022$ No Action -2 -6 1 3 0 0 0 0 -1 -5 -2 -6 2 6 0 0 0 0 0 0 -8 N/A Option 1 - Raise walls gravity feed 1 3 1 3 1 1 0 0 2 10 1 3 -2 -6 1 5 -2 -10 1 5 14 N/A Option 2 - Raise walls pumped 1 3 -2 -6 1 1 0 0 2 10 1 3 1 3 1 5 -1 -5 1 5 19 N/A Option 3 - Install additional ditches 2 6 1 3 1 1 0 0 2 10 1 3 2 6 1 5 -1 -5 2 10 39 27,944,555$ Option 4 - Change Bio-tower operation and add Ditches -2 -6 -2 -6 -2 -2 0 0 0 0 -2 -6 -2 -6 -2 -10 -2 -10 2 10 -36 23,005,000$ Option 5 - Install primary clarifiers -1 -3 1 3 0 0 0 0 2 10 1 3 1 3 1 5 -2 -10 2 10 21 6,695,500$ Option 6 - Ballasted Clarification -1 -3 -2 -6 -1 -1 0 0 0 0 -2 -6 -1 -3 -1 -5 -1 -5 0 0 -29 N/A Option 7 - Fixed Film addon -1 -3 -1 -3 1 1 0 0 1 5 -1 -3 2 6 -1 -5 -1 -5 1 5 -2 N/A Option 8 - Add Bio-Tower and Ditches 2 6 -1 -3 2 2 0 0 2 10 2 6 2 6 2 10 -1 -5 2 10 42 22,845,295$ No Action 0 0 2 6 2 2 0 0 -1 -5 -2 -6 0 0 0 0 0 0 -1 -5 -8 N/A Option 1 - Add Clarifier -1 -3 1 3 1 1 0 0 2 10 2 6 2 6 -1 -5 1 5 2 10 33 3,333,607$ Option 2 - Ballasted Clarification -1 -3 -1 -3 -1 -1 0 0 1 5 1 3 1 3 -2 -10 -1 -5 1 5 -6 N/A No Action 0 0 0 0 0 0 0 0 -2 -10 0 0 0 0 0 0 0 0 0 0 -10 N/A Option 1 - Expand Pasturization Process 2 6 -2 -6 0 0 -1 -3 2 10 1 3 -1 -3 1 5 -2 -10 0 0 2 19,615,379$ Option 2 - Convert to Class B Land Application -2 -6 2 6 2 2 -1 -3 -1 -5 -2 -6 2 6 -2 -10 -2 -10 2 10 -16 10,575,797$ Option 3 - Add Dryer Process 1 3 -2 -6 0 0 1 3 2 10 2 6 1 3 -1 -5 2 10 0 0 24 8,457,549$ Option 4 - Add Neutralizer Process -2 -6 1 3 0 0 1 3 2 10 2 6 1 3 -2 -10 1 5 0 0 14 9,758,168$ No Action -2 -6 2 6 0 0 0 0 -2 -10 0 0 0 0 0 0 0 0 -2 -10 -20 N/A LEGEND Evaluation Weight 1 - Minimal Importance +2 3 - Important +1 5 - Very Important 0 -1 -2 Selection Value CriteriaOperations and MaintenanceImplmentation and PhasingExpandabilityEffluent QualityBio-Solids Secondary Clarifier Headworks Oxidation Ditch 313 Green Values are the combined value of the evaluation weight and the selection value criteria. 3 3Noise and Asthetics555O &M CostCapital CostBold Options are the recommended Alternative Significant benefit to owner compared to other alternates Minor benefit to owner compared to other alternates No Impact to owner compared to other alternates Minor drawback to owner compared to other alternates Significant drawback to owner compared to other alternates Permitting and Regulations Energy Rerquirements35Air Quality, Odor