+r <br />DISTINCTION BETWEEN FIELD LOGS AND FINAL LOGS <br />A field log is prepared for each boring or test pit by our field representative. The log contains information concerning <br />sampling depths and the presence of various materials such as grovel, cobbles, and fill, and observations of ground water- <br />It also contains our interpretation of the soil conditions between samples. The final logs presented in this report <br />represent our interpretation of the contents of the field logs and the results of the laboratory examinations and tests. <br />Our recommendations ore based on the contents of the final logs and the information contained therein and not on <br />the field logs. <br />VARIATION IN SOILS BETWEEN TEST PITS AND BORINGS <br />The final log and related information depict subsurface conditions only at the specific location and on the dote indicated. <br />Those using the information contained herein. should be aware that soil conditions at other locations or on other dotes <br />may differ. Actual foundation or subgrode conditions should be confirmed by us during construction. <br />TRANSITION BETWEEN SOIL OR ROCK TYPES <br />The lines designating the interface between soil, fill or rock on the final logs and on subsurface profiles presented in the <br />report ore determined by interpolation and ore therefore approximate. The transition between the materials may be <br />abrupt or gradual. Only at boring or test. pit locations should profiles be considered as reasonably accurate and then <br />only. to the degree implied by the notes thereon. <br />SAMPLE OR <br />TEST SYMBOLS <br />SH-3-4 <br />r t-Sample Number <br />S - Grab Samples <br />L- Boring or Test Pit Number <br />SS - Standard Penetration Test Sample (split-spoon) <br />Somple Type <br />SH - Thin-wolled Shelby Tube Sample <br />C - Core Sample <br />Top of Sample Attempt <br />CS - Continuous Sample <br />_-Recovered Portion ♦ <br />Standard Penetration Test Resistance equals the number <br />Unrecovered Portion (large <br />of blows o 140 lb. weight falling 30 in, is required to drive <br />circle indicates no recovery) <br />a standard split-spoon sampler 1 ft, Practical refusal is <br />----Bottom of Sample Attempt <br />equal to 50 or more blows per 6 in. of sampler penetration. <br />• <br />Water Content (7}. <br />UNIFIED SOIL CLASSIFICATION SYMBOLS <br />FIELD SHEAR STRENGTH TEST <br />G - Grovel W - Well Graded <br />Shear strength measurements on test pit side <br />S - Sand P - Poorly Graded <br />walls, blocks of soil or Shelby tube samples <br />M - Sill L Low Plasticity <br />ore typically mode with Torvone or pocket <br />C - Cloy H - High Plasticity <br />penetrometer devices. <br />Pt - Peat 0 - Organic <br />TYPICAL SOIL/ROCK SYMBOLS <br />Sand M Silt <br />~j <br />Cloy. n*. Grovel <br />Basalt <br />Siltstone <br />PO FESSI NAL GEOTECHN CALK SERVICES <br />820 N M CORNEIL AVE <br />CORVALLI3. OR 87330--4517 <br />BUS. (541) 757-7815 PAX (541) 757-7850 <br />WATER TABLE <br />Woter Table Location <br />(1/31/00) Dote of Measurement <br />Piezometer Tip Location (if used) <br />SYMBOL KEY <br />BORING AND TEST PIT LOGS <br />1463 <br />