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Future Business Park <br />6/26/2015 <br />Page 3 <br />southeast portion of the site. If development plans change, these ponds can easily be relocated. Also, <br />sizing requirements may change if the area becomes multi -use. <br />Table 2: Summary of Pond Volume Requirements for Multiple Uses in the Public/Quasi-Public Area. <br />Future Land Use <br />Assumed <br />Impervious <br />Area <br />Dead <br />Storage <br />1" <br />Volume <br />(ac) <br />(ft3) <br />(ft3) <br />School <br />40.5 <br />500339 <br />146979 <br />Residential <br />34.2 <br />434558 <br />124110 <br />Employment District <br />76.5 <br />632759 <br />277586 <br />Area 2: Residential Area <br />North of the 150th Ln NW and on both east and west sides of Puma Street, the land use is proposed as <br />single family residential. East of Puma, the proposed site is approximately 49 acres of which about <br />38% will be impervious. Pond volume requirements for dead storage and volume reduction are, <br />88,200 cubic feet and 67,590 cubic feet respectively. Proposed ponding for this site is in the south <br />west comer of the proposed development. <br />West of Puma, the proposed site is approximately 47 acres of which about 38% will be impervious. <br />Pond volume requirements for dead and live storage are, 84,600 cubic feet and 64,832 cubic feet <br />respectively. <br />The proposed area for ponding is in the southeast corner of the site. The proposed ponds would <br />overflow into the existing wetland, maintaining the existing flow paths through the downstream <br />corridor. <br />Employment District Area (Area 3) <br />South of 150th Ln NW and west of Puma Street, the city is proposing to use this land for future <br />industrial/commercial development. This area totals 51 acres, of which 85% will be new impervious, <br />resulting in pond volumes of 91,800 cubic feet for dead storage and 157,361 cubic feet for volume <br />reduction. <br />South of Bunker Lake Boulevard, the city plans to use the 79 acres for further commercial/industrial <br />development, 85% of which will be new impervious area. This will require 142,400 cubic feet and <br />243,210 cubic feet of dead storage and volume reduction, respectively. Drainage from this area will <br />ultimately connect into the storm sewer system along Bunker Lake and discharge into the pond in the <br />southeast comer of the school property. <br />Recommendations <br />