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Project Number 2098RV45 November 30 2017 <br /> compounds (CVOC's) (note: these are only qualitative tests not to be construed to <br /> represent a certified laboratory analysis). Sample lithology and pertinent drilling <br /> information will be described and recorded on field boring logs. Soils encountered will <br /> be logged and classified in accordance with ASTM D2488-17 and USCS procedures. <br /> Preservation of Samples <br /> All soil samples will be labeled, capped and placed in a cooler with ice at a <br /> temperature of 4° C for possible analysis. A maximum of six (6) cores from the <br /> proposed boring will be submitted for chemical analyses. Samples for analyses will be <br /> selected based on the field screening measurements. These samples will be <br /> transferred to a California State Certified laboratory under chain of custody control <br /> procedures. <br /> Drilling Cuttings <br /> Drill cuttings will be temporarily stored either in 55-gallon drums or on plastic sheets <br /> with cover pending chemical profiling for disposal/recycling at a receiving facility. <br /> 2.2.3 Soil Analytical Services <br /> Soil samples will be chemically analyzed at ProVera Analytical Laboratories (State <br /> DHS Certification #2606) (ProVera) for VOCs using EPA Method 8260B full list. <br /> 2.2.4 Well Development <br /> Approximately 72 hours after completion of the monitoring wells, the wells will be <br /> developed to remove fines and settle the filter pack. This will be accomplished by <br /> initially using a bailer to remove fines from the bottom of the well followed by using a <br /> surge block, additional bailing, and pumping using a submersible pump. During <br /> development, physical parameters will be measured including temperature, electrical <br /> conductivity, turbidity and pH. Development water will be temporarily stored onsite <br /> in polyethylene tanks pending receipt of analytical results and transport for recycling. <br /> 2.2.5 Well Surveying <br /> The new wells will be surveyed for latitude, longitude and vertical control in <br /> accordance with Title 23, Division 5, Chapter 30 of the California Code of Regulations <br /> (CCR). <br /> 2.2.6 Disposal of Investigative-Derived Waste <br /> This task includes handling, transport, and disposal (recycling) of drilling <br /> investigation derived wastes (IDW) (drill cuttings, equipment wash water, and well <br /> development purge water). As borings are advanced, drill cuttings will both be placed <br /> in DOT-rated 55-gallon steel drums with secure lids and stored inside the site <br /> building with labels clearly showing the content and the date of its generation, or on <br /> plastic sheets with plastic cover. Decontamination water will be retained in <br /> polyethylene tanks with proper label identifying the contents and date of generation <br /> and stored in a secured area and will be transported for recycling (see below). <br /> All IDW will be securely stored and sampled to establish a waste disposal profile for <br /> disposal at permitted facilities. When all the drilling is completed, within 5 days, a <br /> composite sample from the cuttings will be collected for disposal profiling. It is <br /> estimated that it will take 10 days to have the profiling results for the receiving facility <br /> E2C Remediation 6 <br />