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<br />b.S-D,NRCS(SCS) <br />OILS AND TOPOGRAPHY ESCRIBE THE SOILS ON THE SITE GIVING CLASSIFICATIONS AND <br />,.D, <br />DESCRIPTIONS INCLUDING LIMITATIONS OF SOILS ESCRIBE TOPOGRAPHY ANY SPECIAL SITE CONDITIONS <br />,,,, <br />RELATING TO EROSION POTENTIAL SOIL STABILITY OR OTHER SOILS LIMITATIONS SUCH AS STEEP SLOPES <br />.P/ <br />HIGHLY PERMEABLE SOILS ROVIDE ESTIMATED VOLUME AND ACREAGE OF SOIL EXCAVATION ANDOR <br />.D( <br />GRADING ISCUSS IMPACTS FROM PROJECT ACTIVITIES DISTINGUISH BETWEEN CONSTRUCTION AND <br />).I <br />OPERATIONAL ACTIVITIES RELATED TO SOILS AND TOPOGRAPHY DENTIFY MEASURES DURING AND AFTER <br />,, <br />PROJECT CONSTRUCTION TO ADDRESS SOIL LIMITATIONS INCLUDING STABILIZATION SOIL CORRECTIONS OR <br />.E/ <br />OTHER MEASURES ROSIONSEDIMENTATION CONTROL RELATED TO STORMWATER RUNOFF SHOULD BE <br />I11... <br />ADDRESSED IN RESPONSE TO TEM BII <br />Soil data was obtained from the NRCS Web Soil Survey. As shown in Table 10-1, the study area contains <br />2 <br />nine soils types but is predominately made up of soil identified as 1039, Urban land. <br />Table 10-1. Soils in the AUAR Study Area <br />Map Unit <br />Map Unit Name Acres Percent of Study Area <br />Symbol <br />132C Hayden fine sandy loam, 6-12% slopes 1.1 0.2% <br />158B Zimmerman loamy fine sand, 0-6% slopes 23.4 5.5% <br />158C Zimmerman loamy fine sand, 6-12% slopes 1.9 0.4% <br />859B Urban land-Zimmerman complex, 1-8% slopes 12.8 3.0% <br />860C Urban land-Hayden-Kingsley complex, 3-15% slopes 22.4 5.2% <br />861C Urban land-Kingsley complex, 3-15% slopes 20.2 4.7% <br />863 Urban land-Lino complex, 0-3% slopes 0.1 0.0% <br />1039 Urban land 338.4 78.9% <br />1813B Lina variant loamy fine sand, 2-6% slopes 8.2 1.9% <br />W Water 0.3 0.1% <br />According to the Geologic Atlas of Ramsey County (Minnesota Geological Survey, 1992), the surficial soils in <br />the study area are primarily buried, coarse meltwater stream sediment; and till beneath sandy lake sediment, <br />with small areas of till and organic sediment. The surficial deposits in heavily developed areas, such as those <br />in the study area, are frequently covered by thick artificial fill or reworked local materials. <br />The topography of the AUAR study area is generally flat (see Figure 5-2) with the exception of the southeast <br />corner which has moderate to steep slopes. Stabilization on these slopes will be provided by means of <br />vegetation establishment, erosion control blankets, or other standard methods of erosion and sediment control <br />devices. <br />The earthwork associated with the development will consist of excavation and embankment for the <br />infrastructure improvements, followed by site grading for the development of individual lots. Existing <br />topographic information indicates that a large amount of earthwork will be needed across the site. The <br />southeast side of the site is significantly higher than the rest of the site, and may require more grading due to <br />more varied topography and steep slopes. It is assumed that the majority of onsite earthwork should balance <br />on site. <br /> <br /> http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx, accessed November 18, 2013 <br />2 <br /> <br /> <br />July 2014 Final AUAR 9 <br />