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pf07-002
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5/28/2014 2:13:20 PM
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Planning Files
Planning Files - Planning File #
07-002
Planning Files - Type
Planned Unit Development
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campus on an average annual6asis. With an increase in student population to a total of 2,400 FTE <br />students along with the associated jaculty and staff, the average monthly sewer usage is ezpected to <br />increase to an approximate 1,690,230 gallons. This then assumes that 32,282,755 gallons will serve <br />the 2, 400 FTE students along with the associated faculty and staff on an average annual basis. This is <br />an approzimate increase in sewer usage of 33%. The recipient of that sewerage will be Arden Hills <br />and Roseville. The increases are approximated to be evenly distributed beriveen the hvo cities based on <br />the current proportion of sewer distribution to each city. <br />b. Describe waste treatment methods or pollution prevention efforts and give estimates of composition <br />after treatment. Identify receiving waters, including major downstream water bodies, and estimate the <br />discharge impact on the quality of receiving waters. If the project involves on-site sewage systems, <br />discuss the suitability of site conditions for such systems. <br />The College does not treat or pre-treat sewage emanating from the campus. The ultimate receiving <br />water of treated wastewater is the Mississippi River from the cities of Arden Hills and Roseville. <br />Sewage from the campus flows into the citv se��er lines. There will be no direct impact on the receiving <br />waters aside from the additional quantities of treated wastewater. The project does not involve on-site <br />sewage treatment systems. <br />c. If wastes will be discharged into a publicly owned treatment facility, identify the facility, describe <br />any pretreatment provisions and discuss the facility's ability to handle the volume and composition of <br />wastes, identifying any improvements necessary. <br />All wastewater is conveyed to the Metropolitan Wastewater Treatment Plant by way of regional <br />interceptors. There is no pre-treatment of any wastewater prior to discharge into the metropolitan <br />system. The Metropolitan Wastex�ater Treatment Plant has adequate capacity to treat the additional <br />guantity of wastewater. <br />d. If the project requires disposal of liquid animal manure, describe disposal technique and location <br />and discuss capacity to handle the volume and composition of manure. Identify any improvements <br />necessary. Describe any required setbacks for land disposal systems. <br />This is not applicable jor this project. <br />19. Geologic hazards and soil conditions <br />a. Approximate depth (in feet) to ground water: 20 feet minimum 30 average <br />Approximate depth (in feet) to bedrock: ]00 feet minimum 150 average <br />Describe any of the following geologic site hazards to ground water and also identify them on the site <br />map: sinkholes, shallow limestone formations or karst conditions. Describe measures to avoid or <br />minimize environmental problems due to any of these hazards. <br />The soils have a groundwater depth that is between 20 feet to 40 feet as shown in Attachment 19. The <br />depth of bedrock ranges from approximately 100 feet to 200 feet as seen in Attachment 16. There are <br />no known geological site hazards on the site including sink holes, shallow limestone formations, <br />aba�tdoned wells, or kcrrst conditions. <br />b. Describe the soils on the site, giving NRCS (SCS) classifications, if known. Discuss soil granularity <br />and potential for groundwater contamination from wastes or chemicals spread or spilled onto the soils. <br />Discuss any mitigation measures to prevent such contamination. <br />Map Unit Approximate <br />Symbol Map Unit Name Percent ofSite <br />1588 Zimmerman loamy ftne sand, 0 to 6 percent slopes 18.2 <br />1 SSC Zimmerman loamy fine sand, 6 to 12 percent slopes 17. S <br />158D Zimmerman loamy ftne sand, 12 to 25 percent slopes 23.5 <br />8598 Urban land-Zimnrerman complex, 1 to 8 percent slopes 0.5 <br />P�,�; � v <br />
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