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Work Plan for Limited Site Investigation - Soil Sampling and Analysis <br /> 7-Eleven #41342 n Stockton , California Irerracon <br /> September 28 , 2021 m Terracon Proposal No. NA217064 <br /> Table 1 - Sampling and Analytical Program <br /> Type and purpose Advancement Estimated No, ly Soil Soil <br /> Designation' RECISIte ' . Method Depth (ft)2 Analytical Analytical4 <br /> Concern % Samples <br /> TPH-CC, <br /> 500-gallon VOCs, <br /> SS-1 UST Grab g 1 SVOCs, O&G , <br /> Excavation Metals <br /> (including <br /> lead), PCBs <br /> Notes: <br /> Acronyms: <br /> ' Type and Designation: SS = Soil sample <br /> 2 Proposed maximum depth based on current knowledge of subsurface conditions and depth to groundwater in area. Depths may be modified based on the actual depth to groundwater or refusal on bedrock. If boring advancement beyond <br /> above depths is necessary, client will be notified to discuss options and associated costs. <br /> ' Number of soil samples to be submitted for analytical testing. Samples Y411 be assigned based on phatoionization detector (PID) readings and/or professional judgement considering the type of chemical, nature and depth of source, and <br /> chemical fate and transport characteristics. <br /> 4 Analytical Methods: <br /> TPH-CC = Total petroleum hydrocarbons as gasoline-range organics (TPH-g), diesel-range organics (TPH-d), and oil-range organics (TPH-o) by EPA Method 8015. <br /> VOCs = Volatile organic compounds (Including BTEX/MTBE) by EPA Method 8260 for soil. <br /> SVOCs = Semi volatile organic compounds by EPA Method 8270 <br /> O&G = Oil & Grease by Standard Method 1664A, <br /> Metals Including lead by EPA Method 6010200.7. <br /> PCBs = Polychlorinated biphenyls by EPA Method 8082. <br /> Terracon Consultants , Inc . 902 Industrial Way Lodi , California 95240-3106 <br /> P ( 209) 367-3701 F ( 209) 333-8303 terracon . com <br />