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<br />e <br /> <br />;'". <br /> <br />e <br /> <br />e <br /> <br />(e) Resistance to penetration when drive sampling. <br />(f) Any problems encountered' when drilling, or other special <br />conditions. <br /> <br />(4) Elevation of the top of each hole will be recorded as the as-drilled elevation of top <br />of ground. The location of the boring will be recorded as the actual boring location interpreted <br />from topographic maps and reported in both state plane coordinates and with respect to project <br />and/or existing features. The depth scale used on boring log forms will be no smaller than 20 feet <br />per sheet. Overburden field descriptions will identify the soil type, secondary constituents, <br />organics (if present), moisture content, color, and relative consistency or density. Grain size and <br />shape of granular materials will be described. Degree of plasticity or lack thereof will be <br />described. Resistance to penetration when drive sampling will be noted. Samples will be obtained <br />and recorded on the boring log at a minimumof2.5-foot intervals, or at changes in material, <br />whichever occurs most often. All holes will be completely backfilled and holes made through <br />pavement materials or near structures will be backfilled with cement grout. <br /> <br />(5) Classification of all materials sampled will be according to the Unified Soil <br />Classification System. Lab classifications of overburden materials will include a group name <br />derived by using ASTM D-2487. Each sample will be tested for moisture content and percent <br />passing the number 200 sieve and any other sieves required to establish the group name and <br />symbol. Atterberg Limit Tests (liquid limit and plastic limit) will be conducted on samples as <br />necessary. Gradation tests should be performed on a representative number of samples of <br />materials. Shear strength tests will be conducted as necessary for the purpose of identifying the <br />necessary method of excavation, or for formulating any foundation design parameters needed. All <br />testing will be in accordance with EM 1110-2-1906. The liquid limit test for clays will be <br />conducted as specified in EM 1 110-2-1906;'Appendix III, four-point method. Tests for the liquid <br />limit on clay shale or shale will be the same as specified for clays, except the preparation will be <br />by the blenderized (primary method) method listed under paragraph 4, Procedures for Preparing <br />Clay Shale Materials found in Appendix III, EM 1110-2-1906. <br /> <br />(6) Logs of borings presented on subsurface profiles will be corrected to show <br />laboratory classification of overburden materials and field descriptions of primary materials. <br />Plates will be drawn to appropriate scale, and will be clear and legible when reduced for <br />publication in an 8 'h" horizontal x 11" vertical report. (Single foldout plates will be allowed in <br />the report.) Lettering and general appearance of plates will meet professional drafting standards. <br />Pertinent laboratory data will be presented with the boring logs presented on profiles and sections. <br /> <br />. (7) Corps of Engineers personnel will be responsible for obtaining rights of entry and <br />all applicable permits prior to drilling. Testing will be in accordance with the referenced methods. <br /> <br />(8) Investigations and analyses' performed for this study will be documented in a <br />formal report. The report will serve as an appendix to the subject report. As a minimum, the <br />report shall contain the following in plates and narrative form: <br /> <br />SECTION B, PAGE 6 <br />