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VOCs with fuel oxygenates via EPA Method 8260B, and TPH as oil, diesel, and gasoline <br />via EPA Method 8015. The temporary well point will be constructed using one-inch <br />diameter schedule 40 PVC with a ten-foot screen interval in an attempt to collect grab <br />groundwater samples. Groundwater samples will be collected with a dedicated bailer or <br />peristaltic pump and dedicated tubing. <br />In the case of no groundwater encountered, a total of six soil vapor probes will be <br />installed in the above mentioned five boring locations at a depth of 5 feet bgs. A total of <br />six soil vapor samples will be analyzed for TPH as gasoline and VOCs using EPA <br />Method 8260B. <br />Following collection of the samples, all of the soil borings and the soil vapor probes were <br />backfilled with neat cement grout and restored to pre-drilling condition by applying <br />patching materials. <br />Level D PPE and Health & Safety according to OSHA CFR 1910.120 will be followed <br />during the field investigation. <br />Soil or wastewater generated during the field activities will be stored in 55-gallon drums <br />and will be shipped off-site for proper landfill disposal. <br />Exact locations of the soil borings will be determined at the time of pre-marking the site <br />and after utilities are cleared. Analysis of soil samples will be chosen based on field <br />observations, depth to groundwater (if applicable), and/or PLD readings. <br />The objective of the sampling plan is to evaluate the risk of a release from the historical <br />gasoline service station and dispensing operations. Note that the number of samples <br />collected may vary depending on field conditions. Locations will be determined at time <br />of field investigation and are anticipated to be within proximity to the former suspect <br />areas of concern. <br />Soil and Groundwater Sampling Methodology <br />A full access and/or limited access push probe rig with a licensed operator will be <br />mobilized to the site to complete the proposed scope of drilling and sampling activities. <br />All down-hole sampling equipment will be cleaned before starting a soil boring, with a <br />non-phosphate detergent and water before each use. <br />This bid proposal includes cost for mobilization and demobilization, liners, bentonite, <br />asphalt patch, fuel, and tubing. FR will backfill each boring with bentonite pellets. <br />Each borehole will be abandoned/filled with bentonite, and restored to pre-drilling <br />condition via applying patching materials. <br />Collect soil samples at 5-foot intervals beginning at 5 feet, or at significant changes in <br />lithology. Attempt to collect the lowermost sample at or immediately above the <br />groundwater level if groundwater is encountered during drilling. <br />If groundwater is encountered at each borehole drilled, grab samples will be collected <br />down hole (either through the drive rods or temporary installed 1-inch PVC well <br />Fulcrum Resources Environmental <br />574 W. Grant Line Road, Tracy, CA 95376 <br />Phase II Work Plan <br />4