10-23-2002 Council Agenda - Laserfiche WebLink

Home Browse Search

All soil samples obtained were brought: to our laborato for examination and classification. They will be retained for o period of at least 90 cloys from date of issue of this report after which they will be discarded unless we are otherwise not- ified. Drawing No 1 is a site plan showing the test hole loco tions in relation to the outline of the proposed building. Detc iled soil descriptions along with a plot of the standard pene- tration test blows per foot are given on the Borehole Log shee s, Drawings No.2 and 3„ The capital letters in parentheses folio ing the regular soil descriptions are the appropriate group symbols of the Unified Soil Classification System. A chart explaining this system is appended. All elevations in this report are to geodetic datum, an were obtained using the bench mark noted on the site plan. SITE AND GEOLOGY The properly slopes from the south down to a creek whic traverses the north side of the site Geologically, the site lies just north of a fork of 'two deep, major pre-glacial river channels. According to informati�' published by the State of Minnesota Geological Survey, the uppc most bedrock stratum under the property is believed to be St, Peter sandstone and probably occurs at a depth of 130 to 140 feet below present grade. The lower portions of these channels were probably filled in with glacial outwash sands and gra•. 1s These were subsequently covered by clayey glacial till related o the Qes Main -s i_c^ - cansin SUBTERRANEAN ENGINEERING INC. MINNEAPOLIS.