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Eric Larson <br /> July 7,2016 <br /> Page 3 <br /> Topography Map <br /> Two foot contours were downloaded from the Minnesota DNR's MNTopo Viewer website was and utilized to <br /> approximate water flow patterns and identify potential depressional areas.The topographic map indicates that <br /> the Project Site is gently rolling with a decrease in elevation between the west property boundary and the <br /> residence and another decrease in elevation east of the residence to Long Lake. <br /> Precipitation Data <br /> Analysis of precipitation data pertinent to the project area is important to understand the wetland hydrology <br /> indicators observed during the field work activities. <br /> Precipitation data was obtained from the Minnesota State Climatology Office webpage,which provides <br /> "synthetic"data for a chosen project location.The synthetic data are made up of regularly-spaced grid nodes <br /> whose values were calculated using data interpolated from Minnesota's precipitation data base.Normal <br /> precipitation is based on the 30-year average for the period of 1981-2010.Non-normal precipitation is <br /> considered to be that below the 30th percentile(drier than normal)and above the 70th percentile(wetter than <br /> normal).Table 3 summarizes the precipitation data for the past 12 months(July 2015 -June 2016). In addition, <br /> the table provides a comparison of the actual precipitation compared to the 30-year average (1981-2010). <br /> Sambatek also utilized the NRCS Method to determine the hydrologic conditions during the three month period <br /> prior to the site visit. <br /> Table 3.Precipitation Data for The Subject Property <br /> 30-Year <br /> Average Actual Difference <br /> Month/Year (Inches) (Inches) (Inches) <br /> July 2015 3.97 7.27 +3.30 <br /> August 2015 4.11 3.04 -1.07 <br /> September 2015 3.41 3.76 +0.35 <br /> October 2015 2.39 2.85 +0.46 <br /> November 2015 1.68 3.91 +2.23 <br /> December 2015 1.15 1.67 +0.52 <br /> January 2016 0.82 0.33 -0.49 <br /> February 2016 0.79 1.02 +0.23 <br /> March 2016 1.73 1.14 -0.59 NRCS Method <br /> Condition <br /> April 2016 2.56 3.39 +0.83 Wet <br /> May 2016 3.46 2.13 -1.33 Dry <br /> June 2016 4.38 2.01 -2.37 Dry <br /> Total 30.45 32.52 +2.07 Dry(8) <br /> ••• - I • • 1 <br /> • a • S •. - • <br />