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SOP: Monitoring <br />Well Installation <br />VIII. Data Recording and Management <br />Drilling activities will be documented in a field logbook. Pertinent information will include personnel present on <br />' site, times of arrival and departure, significant weather conditions, timing of well installation activities, soil <br />descriptions, well construction specifications (screen and riser material and diameter, sump length, screen length <br />and slot size, riser length, sand pack type), and quantities of materials used. <br />' Afield survey control program will be conducted using standard instrument survey techniques to document well <br />or piezometer location, ground, and inner and outer casing elevations. The elevation of the top of the inner <br />' casing used for water-level measurements should be measured to the nearest 0.01 foot. Elevations will be <br />established in relation to the National Geodetic Vertical Datum of 1929. A permanent mazk will be placed on <br />top of the inner casing to mazk the point for water-level measurements. <br />' IX. Quality Assurance <br />All drilling equipment and associated tools (including augers, drill rods, sampling equipment, wrenches, and any <br />other equipment or tools) that may have come in contact with soil will be cleaned in accordance with [he <br />procedures outlined in the Field Equipment Cleaning-Decontamination SOP. Well materials will also be cleaned <br />prior to well installation. <br />' X. References <br />American Society of Testing and Materials (ASTM) D 1586 -Standard Test Method for Penetration Test and <br />' Split-Barrel Sampling of Soils. <br />11/6A6 <br />SOPOd~.lonita Wall Installation-Mine.EOc <br />