Laserfiche WebLink
rr^ <br />o <br />Mm^ <br />6 <br />The Dee Moines clayey glacial till consists primarily of <br />grey sandy clay with traces of fine gravel throughout. Standard <br />penetration tost values in the clay till vary between 14 and 24 <br />blows per foot, indicative of a tough to very tough conaiatoncy. <br />The natural moisture content of the clay till is between 17* and <br />21*. The Oes Moines clayey till has moderate load bearing <br />capacity and low compressibility, and is a very good foundation <br />8Ub80l1. <br />GROUND WATER COtJDITIQMS <br />Free ground water was encountered in all S tost holes <br />between 3-1/2’ and S’ depths, corresponding to elevations 924.3’ <br />to 927.8’. Had the period of observation in tost holes 3 and 4 <br />been longer the water levels would also have risen to the 926’- <br />928* range. <br />The ground water level at this site ie directly related to <br />the prevailing water level in Lake Minnetonka. At the time of our <br />field work, the lake water elevation was 926.3’, corresponding to <br />between 6’ and 7’ below present ground surface. The 100-year <br />floor elevation of Lake Minnetonka is 931.6’. <br />/i umumAmAH <br />—/ FO Bo. K.W6 <br />Zrl Hmnnpaia Wi 0433