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2.4 Sample Analysis Summary A total of 16 soil samples (including 4 background samples) and 3 grab groundwater samples will be collected. Selected soil samples will be analyzed for VOCs, TPH, PAHs, and Title 22 metals. Groundwater samples will also be analyzed for VOCs, TPH, PAHs, and Title 22 metals. 2.5 Field Activities The field activities consist of collecting soil and groundwater samples using a Geoprobe sampling system. A site and task specific Health and Safety Plan (HASP) was developed for the site and is attached as Appendix C. The HASP will be present in the field during the field activities. 3.0 FIELD OPERATIONS This section describes the methods and procedures that will be used during sampling. Waste hand- ling is also discussed. 3.1 Sampling Methods and Procedures A utility clearance will be completed by notifying Underground Services Alert (USA) at least 48- hours prior to sampling activities. A total of 16 soil samples and 3 groundwater samples will be collected. Table 3 provides details regarding sampling locations, sample depths, sample identification, and proposed analytical testing. The proposed sample depths for soil are 5.5 — 6.0 feet, 7.5 — 8.0 feet, and 9.5 — 10.0 feet. The uppermost sample will be analyzed and the other two held pending analytical results. Depth of sampling may be adjusted based on the depth of associated sumps or filed observations/PID readings. Any changes will be discussed with the DTSC project manager. 3.1.1 Soil Sampling The sample borings will be advanced using a direct push (Geoprobe) drilling rig. A vehicle- mounted, hydraulically-powered soil probing machine that utilizes static force and percussion to advance small diameter sampling tools into the subsurface will be used to collect soil samples. Each soil interval will be continuously cored by a driving action that forces relatively undisturbed soil into a lined sampler barrel. Following the driving operation,the sampler will be retrieved from the boring and the sample liner removed. A portion of the soil sample liner will be selected and prepared for shipment to the analytical laboratory. The section of liner obtained for analyses will be sealed with Teflon sheets and air tight end caps. Each sample will be labeled and preserved in a cooler with ice packs. Each soil sample interval will be monitored in the field for possible volatiles using a portable field analyzer. A portion of the sample interval adjacent to the retained sample will be measured and the meter readings recorded. The field analyzer is a battery-powered instrument which detects and indicates concentrations of volatile organic compounds in the air in the parts-per-million range. Vapor is drawn continuously by means of a built-in pump and analyzed. The field readings will be 1163-3 2014 0617 PEAWP 3 8 GRI