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. . , ' the existing drainage swale ~d com~ey the off site drainage through stormsewerpipe,to' the existing retention pond located, along the south property' Hne. . The existing drainage swale was constructed approximately '10 'years ago in an area previously covered by an impervious surface; therefore, this ditch is considered I)ot to be a Wetland and ,will not, require regulatory review if altered. As part of the proposed development, infiltration . . areas will be incorporated into the parking lot design to allow stonnwater infiltration and, minimize sedim~nts ITom being discharged into iheexistlng pond. ' The proposed project will involve tl1e placement of fill In an excavated stonnwater. retention basin loc~ted ,along the southern property line. . Approximately 1. 52;;acre feet of the e~sting retention basin will be filled during site grading activities. The volume of the' retention basin filh~d will be excavated along .the northeast edge,oftbe basin.' Once site grading activitjes are'complete, the basin volume should be unchanged, but the basin edge WIll be ~ecbnfigured with a more naturalistic edge. This will provide a more realistic' wildlife. habitat and an aesthetically, pleasing , pond. All stormwater will be controlled for construction sediments before being discharged ITO~ the site. " , . , . T4e stormwater retention basin is part of the regional stormwater system andnai a ' . wetland protected under the wetlarid ~nservation act. Modifications'to the 'retention. basin will not cause water lt~vels to chang~ significantly and will not 'adverse\y alter the. hydrology or po~d: ' Sanitary SewerlWater Demand' , " ' " .' ' , Sanitary sewer has be~n eXtended to the site ITom the existing, sewer main located in Centre Pointe Drive. . ' , ,.' Sanitary sewerwiU be handled by the City ofRoseville system. . It is estimated that the proposed improvements will contribute a peak 'flow of44 .gpm to'the sanitary sewer' system. Existing 8 inch and 10 inch sanitaiy sewers existin Centre Pointe Drive, Lydia Avenue and Cleveland Avenue.' These grayity lines flow to a lift station loc~ted abqut 600 feet north of Lydia Avenue on the west side ofC,leveland Avenue., This lift station: " was upgraded in 1987 to handle all flows ITom the Centre Pointe development.. The sewer lines are located such th~t they will handle' most or all of the site. Allthe sewers ultimately reach the trunk sewer line in lana'Lane then onto ~he Metro Treatment Plant in . St. Paul. {', . , ' . ' . , .' . , , (,' The City ofRos~ville municipal water sUpply will be, used to provide"domestic water" supply to the city. Roseville receives its water ITom the City of St PauL Assuming a' dail y ,consumptioiuate of 800 - 1560 g~loris per' acre per day for Com~erCial uses, total consumption for the site, would be 12,480-23,400 gallons per day fOf, the 15'.6;.acre site. . According to the St. Paul Water Utility~. the maximum capacity oftheii water Supply facility is 168 million gallons per day ,arid their. current average utilization rate is 52 . '