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CATAWBA VALLEY 28 <br /> <,Y/, <br /> ENGINEERING&TESTING <br /> Technical Approach <br /> Typical Geotechnical Services performed by CVET include data review, soil sampling and <br /> testing, associated reporting and other tasks in general accordance with the terms of the <br /> project. All soil borings and subsequent laboratory testing are conducted in accordance with <br /> ASTM Standards. <br /> Soil Boring Methodology <br /> • Preceding soil boring activities, CVET communicates with the appropriate personnel to <br /> ensure proper methodology is completed to achieve the goals of the exploration. <br /> • Borings are completed using track-mounted drilling equipment and may consist of a <br /> combination of dry auger and wet rotary techniques, CPT, DMT, and Rock Coring. <br /> • Regardless of the methodology of boring, the proper ASTM methods are followed. <br /> • Soils are sampled using a split-spoon sampler in general accordance with the Standard Test <br /> Method for Standard Penetration Test and Split-Barrel Sampling of Soils (ASTM D1586). <br /> • Collected samples will be stored in airtight containers and presented to the laboratory for <br /> Lab testing requirements. <br /> • CVET performs the requested soil laboratory tests. <br /> • CVET provides a detailed data report describing the methodology of the exploration, boring <br /> Logs and laboratory results. <br /> EXPLORATION METHOD <br /> IN-SITUTESTING STANDARD PENETRATION TEST(SPT) ROCKCORING DIRECTPUSH <br /> ECY T T <br /> r 7 r fA `y 0 ry <br /> O U H a C 9 Z E O <br /> RIG i a <br /> Geoprobe7922DT 0 0 0 ❑ ❑ ❑ ❑ 0 0 <br /> Geoprobe7822DT D D 0 D D D D D D D <br /> Geoprobe3126GT 0 0 0 0 0 0 0 0 0 0 <br /> Geoprobe31350T D D 0 D D D D D D D <br /> Geoprobe20 Ton Press 0 0 0 ❑ ❑ ❑ ❑ ❑ ❑ ❑ <br /> Laboratory Methodology <br /> CVET's in-house laboratory can test both soil and asphalt and maintains current AASHTO <br /> accreditation for our concrete laboratory in Hickory, North Carolina. The actual laboratory <br /> testing to be performed will be developed once the field logs have been reviewed. A sample of <br /> soil classification tests that can be performed are listed below. <br /> ✓ Natural moisture content & unit weights <br /> (ASTM D2216) <br /> ✓ Liquid and plastic limits (ASTM D4318) <br /> =- ✓ Grain-size analyses with hydrometer <br /> (ASTM D1140/D6913/D422,7928) <br /> ✓ Compressive strength of rock cores. <br />