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17096 Von Kannan, Suite 600, Wine, CA 92614 <br />TETRA TECH rat 949.109.6000 <br />Fax 949.109.5010 <br />Client: City of Santa Ana Sheet No. l of l <br />Project: Westminster Ave Sewer Main Improvements Job No. 134- P00597 -0086 -04 <br />Cost Sharing Cost Estimate Computed by: MBJ <br />Checked by: MWB Date: 2/4/2013 <br />Assamptions. 1. Percentage of cost assigned to Santa Ana and Garden Grove equals the percentage of flow each City contributes between <br />each manhole. See attached spreadsheet for percentages. <br />2. Percentage of lump sum items in each reach is calculated as the percentage of pipeline constructed in each reach divided <br />by the total amount of pipeline. See Table A below. <br />TABLE A - Percentage of Lump Sum Bid Items <br />Reach #1 <br />9618.5 <br />9278.4 <br />340 <br />10% <br />Reach #2 <br />9278.4 <br />8926.3 <br />348 <br />11% <br />Reach #3 <br />89263 <br />8603.2 <br />320 <br />10% <br />Reach #4 <br />8603.2 <br />8303.3 <br />296 <br />91y. <br />Reach 95 <br />8303.3 <br />8099.7 <br />200 <br />6% <br />Reach #6 <br />8099.7 <br />7769.6 <br />326 <br />10;; <br />Reach #7 <br />7769.6 <br />7399.9 <br />366 <br />11% <br />Reach #8 <br />7399.9 <br />70223 <br />373 <br />11% <br />Reach #9 <br />7022,7 <br />6648.2 <br />371 <br />II% <br />Reach 910 <br />6648.2 <br />6263.7 1 <br />379 <br />II% <br />P:WWS97W8T.F gv,m *041('°y tuY ftAc°f. E1111y1C{.°n 3luring <br />23A -21 <br />