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Catchment Profiles <br />r <br />Project ID: RR8-B <br />142nd Ave. <br />Hydrodynamic Device <br />Drainage Area — 2.5 acres <br />Location —142"d Ln. NW <br />Property Ownership —Public <br />Site Specific Information — A hydrodynamic <br />device could be installed in -line with the storm <br />sewer system to accept runoff from stormwater <br />catch basins draining 142"d Ave NW and <br />surrounding public and commercial properties. <br />Hydrodynamic Device <br />Cost/Removal Analysis <br />Administration & Promotion Costs <br />Design & Construction Costs** <br />Total Estimated Project Cost (2016) <br />nnual O& <br />30-yr Average Cost/Ib-TP <br />•°' 30-yr Average Cost/1,000Ib-TSS <br />v <br />30-yr Average Cost/ac-ft Vol. <br />1 <br />6 ft diameter <br />0.2 1.2% <br />108 2.0% <br />0.0 0.0% <br />$1,752 <br />$27,000 <br />$28,752 <br />$630 <br />$7,942 <br />$14,707 <br />N/A <br />*Indirect Cost: (24 hours at $73/hour) <br />**Direct Cost: ($18,000 for materials) + ($9,000 for labor and installation costs) <br />***Per BMP: (3 cleanings/year)*(3 hours/cleaning)*($70/hour) <br />Hydrodynamic Device <br />BMPDrainage Area <br />Storm Sewer Line <br />Outfall <br />City of Ramsey Stormwater Retrofit Analysis <br />