FIELD AND LABORATORY TESTING <br />Laboratory Testing <br />The laboratory work included natural water contents, percent fines and Atterberg <br />limits tests to classify the foundation soils . according to the Unified Soil <br />Classification System (USCS), determine their homogeneity and estimate their <br />overall engineering properties. The results of those tests are summarized in <br />Table 1. <br />Table 1. Atterberg Limits, Natural Water Contents, and Percent Fines <br />Sample <br />Number <br />Sample <br />Depth (feet) <br />Moisture <br />Content <br />(percent) <br />LL <br />PL <br />PI <br />USCS <br />Classification <br />Percent <br />Fines <br />S-1-1 <br />0 - 0.75 <br />43.8 <br />53 <br />37 <br />16 <br />MH <br />S-2-1 <br />1.5 - 2.0 <br />25.7 <br />S-3-1 <br />1.5 - 2.0 <br />33.2 <br />S-4-1 <br />1.5 - 2.0 <br />28.2 <br />S-5-2 <br />1.5 - 2.0 <br />35.2 <br />50 <br />27 <br />23 <br />CL <br />S-6-1 <br />1.5 - 2.0 <br />34.5 <br />S-8-1 <br />1.0 - 2.0 <br />35.7 <br />S-8-2 <br />2.5 - 3.0 <br />27.6 <br />39.7 <br />S-9-1 <br />1.5 - 2.0 <br />32.8 <br />S-11-1 <br />1.0 - 2.0 <br />31.9 <br />DCP Testing <br />Dynamic Cone Penetrometer testing was completed in TP-12, TP-13 and TP-14. <br />The DCP test consists of driving the cone of the DCP apparatus into the soil and <br />recording the penetration versus blow count (mm/blow) as the DCP value. A <br />correlation for estimating the soil resilient modulus (Mr) from results of DCP testing <br />was used. The DCP test results and correlated M, values are summarized in <br />Table 2. <br />Oakleigh Meadows Cohousing February 12, 2013 <br />1 4 4 8 Geotechnical Investigation Project 2131004 <br />Eugene, Oregon 3. Willard C. Dixon Architect, LLC <br />