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03/02/00 14:31 FAX 6129331153 RLK:-KlTUSISI:Q _, ~._.._. ....-...-. the existing drainage swalc and convey the olTsitc drainage through Slormsewer pipe to the existing retention pond located along the south property Ene. The existing dTainage swale was consU1.\cted approximately 10 years ago in an area previously covered by an impervious surface; therefore. this ditch is considered not 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 infiJtration and minimize sediments .iTom being discharged into the existing pond_ The proposed project will involve the placement of fill in an excavated storm water retention basin located. along the southern property line_ Approximately I.52-acre feet of the existing retentio}') basin will be filled during site grading activities. The volume of the retention basin filled will be excavated along the northeast edge of the basin. Once site grading activities are complete, the basin volume should be unchanged, but the basin edge will be reconfigured with a more naruralistic 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 from the site. The stonnwater retention basin is part of the regional stormwater system and not a wetland protected under [he wetland conservation act. Modifications to the retention basin will not cause water levels to change significantly and wiIJ not adversely aJter the hydrology or pond. Sanitary SewerlWater Demand Sanitary sewer has been extended to the site from the existing sewer main located in Centre Pointe Drive. Sanitary sewer will be handled by the City ofRoseville system. It is estimated that the proposed improvements wilJ contribute a peak flow of 44 gpm to the sanitary sewer system. Existing 8 inch and 10 inch sanitary sewers exist in Centre Pointe Drive, Lydia A venue and Cleveland A venue. These gravity lines flow to a lift station located about 600 feetnortb of Lydia Avenue on the west side of Cleveland Avenue. This lift station was upgraded in 1987 to handle all flows from the Centre Pointe development. The sewer lines are located such that they will handle most Or all of the site. An the sewers ultimately reach me trunk sewer line in lona Lane then onto the Metro Treatment Plant ill S1. PauL The City of Roseville mWlicipal water supply will be used to provide domestic water supply to the city. Roseville receives its water from the City of St. Paul. Assuming a daily consumption rate of 800 - 1500 gallons per acre per day for commercial uses, total consumption for the site would be 12,480-23,400 gallons per day for the IS.6-acre site. According to the SL Paul Water Utility, the maximum capacity of their water supply facility is 168 million gallons per day and their current average utilization rate is 52 IaJ OOJ