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21 June 2018 <br /> AdvancedG eo <br />AGE Project No. 11-1847 <br /> Environmental <br />Page 4 of 8 <br />2.4. REPORT PREPARATION <br />Results of the SVE and IAS pilot test will be presented in a report of findings. Based on <br />the results of the SVE and IAS pilot test, a determination will be made whether or not <br />SVE/IAS are feasible options for this site. If SVE and/or IAS is determined to be feasible <br />and cost effective, then AGE will propose a remediation system design in a Remedial <br />Action Plan (RAP). The SVE and IAS pilot test report of findings and/or RAP will be in a <br />format acceptable to the RWQCB (Appendix A guidelines), and will be reviewed and <br />signed by a California Professional Geologist. <br />3.0. FIELD PROCEDURES <br />All field procedures will be overseen by an AGE representative under the supervision of <br />a California Professional Geologist. Procedures for SVE/IAS well installations and pilot <br />test procedures are described below. <br />3.1. DRILLING <br />Soil borings will be advanced utilizing a truck-mounted, hollow-stem drill rig and either 8- <br />inch or 10-inch diameter hollow-stem augers. Drilling cuttings will be stockpiled and <br />covered on-site with plastic sheeting. Rinseate generated during drilling activities will be <br />containerized in properly labeled Department of Transportation (D.O.T.)-approved 55- <br />gallon drums, and stored on-site in an area lacking public access. Disposal alternatives <br />will be evaluated based on results of soil analysis. <br />3.2. SOIL SAMPLING <br />Soil samples will be collected from each soil boring at five-foot intervals, beginning at a <br />depth of 5 feet bsg, utilizing a modified California split-spoon sampler and brass sleeves. <br />The sampler will be driven by dropping a 140-pound weight from a height of 30 inches <br />(blow counts). The blow counts required to drive the sampler over each 6-inch interval <br />will be recorded on boring logs. Upon soil sample retrieval, the second brass sleeve will <br />be removed from the sampler. The ends of the brass sleeve will be immediately covered <br />with Teflon or aluminum sheets, sealed with plastic end caps, secured with tape and <br />immediately placed in a chilled container for transportation under chain-of-custody to a <br />state-certified laboratory. Each sample sleeve will be labeled with the boring location, <br />sample depth, sample time, sampling date and sampler's initials. <br />During sampling activities, sample duplicates will be monitored for the presence of <br />organic vapor using a photo-ionization detector (PID: Thermo Environmental 580, <br />10.0 eV, calibrated to isobutylene) and will be visually described on boring logs using the <br />Unified Soil Classification System (USCS). All sampling tools and brass sleeves used for