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28 December 1999 <br /> AGE-NC Project No. 97-0351 <br /> Page 6 of 7 <br /> 3.4. MONITORING WELL INSTALLATION <br /> The scope of work will include the advancement of two borings to a total depth of approximately <br /> 20 feet below surface grade (bsg), collection of soil samples, and the installation of two 2-inch <br /> diameter ground water monitoring well. Proposed boring locations are depicted on Figure.2. <br /> Soil borings will be advanced utilizing a truck-mounted;,drill rig equipped with 8.25-inch hollow- <br /> stem augers. Soil samples will be collected at five-foot intervals beginning at a depth of 5 feet bsg, <br /> preserved and placed in a chilled container for transportation to a State-certified laboratory. Soils <br /> will be described using the Unified Soil Classification System (USCS and ATSM D-2489). Soil <br /> sample descriptions and PID screening results will be summarized on boring logs prepared for the <br /> final report. <br /> 3.5. REPORT PREPARATION <br /> Upon completion of field work and receipt of final laboratory analysis, a report will be prepared <br /> presenting the findings of the soil removal activities. The report will include a description of the <br /> work performed and the results of the sampling and analysis. Conclusions and applicable <br /> recommendations will be included in the report. The report will be in a format acceptable to the <br /> PHS-EHD and CVRWQCB, and will be reviewed and signed by a California Registered Geologist. <br /> 4.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Registered Geologist.Procedures for soil excavation, soil sampling,equipment decontamination and <br /> monitoring well installation are outlined below., <br /> 4.1. SOIL EXCAVATION PROCEDURES <br /> Soil will be excavated using an excavator. Soil will be placed into -an end-dump truck for <br /> transportation to Forward Landfill. Excavated soil will be field screened for the presence of volatile <br /> organic compounds using an OVM. Based on OVM readings and field observations, excavated soil <br /> will be segregated into clean soil(if appropriate)and impacted soil; only soil exhibiting hydrocarbon <br /> odors or measured OVM readings will be transported for disposal. The excavation will be backfilled <br /> with clean fill material or pea gravel. <br /> The open excavation area will be surrounded by temporary fencing. No AGE or subcontractor <br /> Advanced GeoEnvironmental,Inc. <br />