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Job No. 4780201 • • 4 <br /> ' 3.0 PROPOSED WELL INSTALLATION PROTOCOL <br /> ' All work will be performed in accordance with State guidelines and acceptable <br /> industry standards. A Site Safety Plan will be prepared prior to commencement <br /> of field activities. <br /> 1 3.1 Well Drilling Protocol <br /> 1 Well MW-1 will be installed by Spectrum Exploration, Inc. of Stockton, <br /> California (C-57 Lic. #512268), using a mobile drill rig equipped with 8-inch <br /> diameter, hollow-stem augers. All augers, drill rods, subs, and collars will be <br /> thoroughly steam-cleaned before drilling operations commence. Cleaned <br /> augers, rods, and other tools will be stored when not in use. Cleaning <br /> ' operations will be verified by a representative of EZC, Inc. All equipment <br /> decontamination rinseate will be contained and stored on-site in labeled 55- <br /> gallon drums, approved for such use by the State of California Department of <br /> Transportation. <br /> In order to develop a profile of soil type and soil contamination (if any), soil <br /> samples will be obtained during drilling operations at appropriate intervals in the <br /> unsaturated zone, at changes in lithology, just above the soil/groundwater <br /> interface zone, and through areas of obvious contamination (if any). A detailed <br /> boring log will be maintained, which will note soil texture, color, moisture <br /> ' content, consistency, and plasticity utilizing the Unified Soil Classification <br /> ' System. The observation of any unusual characteristics, such as chemical odor <br /> or discoloration, will also be recorded and presented within the text of the <br /> ' investigation report. <br /> ' Soil cuttings will be stored on site in 55-gallon drums pending appropriate <br /> disposal. <br /> E2C, Inc. April 4, 1997 <br />