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TABLE 4 <br />STORMWATER FACILITIES <br />ESTIMATED CONSTRUCTION COSTS <br />FOR WATER QUALITY STRUCTURES <br />Device /Model <br />Total Installed Cost <br />Number of <br />Cartridges <br />Compost Storm Filter (CSF) Function: Primarily metals uptake and oil & grease <br />removal. Commonly used with sediment manhole <br />CSF 8x6 <br />$58,500 <br />6 <br />CSF 8x6 <br />$70,000 <br />11 <br />CSF 12x6 <br />$73,280 <br />11 <br />CSF 16x8 <br />$138,560 <br />33 <br />CSF 16x8 <br />$157,000 <br />39 <br />Note 1: StormFilter costs were provided by Contech Stormwater <br />Solutions (email to URS dated 10 -24 -2007, email attached). If <br />other proprietary treatment systems are proposed, costs for other <br />facilities will be updated. <br />Note 2: Construction costs presented in this table are planning <br />level estimates. Costs represent installation of average facilities <br />under typical conditions. Estimates reflect vaults installed in <br />public right of way, in an existing residential paved street, with <br />average utility conflicts and restoration costs. <br />