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CCP 01-21-2003
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CCP 01-21-2003
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<br />I <br />I. <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />Ie <br />I <br />I <br />I <br />I <br />I <br />I <br />I. <br />I <br />I <br /> <br />MUSA expansions, should be discussed. For non-metro area AUARs, the AUAR must <br />discuss the capacity of the RGU's wastewater treatment system compared to the flows <br />from the A UAR area; and necessary improvements should be described. <br /> <br />. <br /> <br />If on-site systems will serve part of the AUAR the guidance in "EAW Guidelines" <br />(pages 16-17) should befollowed. <br /> <br />Parking garage drainage and other site-generated wastewater will be discharged directly <br />into the City's sanitary sewer system, which is processed by the Metropolitan Council <br />Environmental Services (MCES) system. The City of Arden Hills has confirmed that the <br />existing sanitary sewer lines servicing the proposed campus have the capacity to handle the <br />additional wastewater volumes required for the campus needs. There was also <br />coordination with the MCES to confirm that their system could handle the additional <br />volumes of wastewater. The proposed campus will add approximately 46,305 gallons per <br />day of wastewater to the existing 52,150 gallons per day for a total of 98,456 gallons per <br />day. While the proposed project will not require additional connections to the sanitary <br />sewer lines located in CR F and Hamline Avenue, the development will require additional <br />connections to the sanitary line located in Fernwood Avenue. These additional connections <br />will be made as needed during the phased development of the AUAR study area. <br />Calculations for determining the amount of wastewater assume that for office/limited <br />industrial space there are three employees per 1,000 square feet, producing 15 gallons of <br />wastewater per person per day. Guidant will work with the City of Arden Hills to <br />detcrmine the manner in which the internal drainagc from the parking garage will be <br />treated prior to entcring the sanitary sewer consistent with Section 1010.08 Subd. I of the <br />City of Arden Hills ordinance. Drainage from the top uncovered level of each parking <br />ramp will enter the city stonn water system. <br /> <br />19. GEOLOGIC HAZARDS AND SOIL CONDITIONS <br /> <br />EAW: <br /> <br />A. APPROXIMATE DEPTH (IN FEET) <br />TO GROUND WATER: 0 Feet MINIMUM, 90 Feet AVERAGE <br /> <br />Source: Water table elevation data was calculated using the USGS 7.5 Minute Series <br />Topographic Map for Ramsey County, Minnesota-New Brighton quadrangle (1997) and <br />the Geologic Atlas of Ramsey County, Minnesota Surficial l-Iydrogeolgy map (l992). <br /> <br />APPROXIMATE DEPTH (IN FEET) <br />TO BEDROCK: 250 Feet MlNIMUM, <br /> <br />300 Feet AVERAGE <br /> <br />Source: Bedrock infonnation obtained from the Phase I ESA (November 2l, 1997). <br /> <br />Guidant Campus Master Plan <br />Final AUAR and Mitigation Plan <br /> <br />- 25 - <br /> <br />January 2003 <br />
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