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Table 1 Geosyntec Consultants <br /> Sampling Plan Summary <br /> Draft Investigation Work Plan-UST 817B <br /> Rough and Ready Island,Port of Stockton <br /> Anticipated <br /> Location 1 Depths Analyses Purpose <br /> ' , Delineate elevated concentrations of <br /> 81713-23 Soil 81713-21-SS 2,4,6 -VOCs,TPH-g,TPH-d petroleum hydrocarbons detected in <br /> soil from the former UST excavation. <br /> 917-01 Groundwater 917-01 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-02 Groundwater 917-02 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-03 Groundwater 917-03 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-04 Groundwater 917-04 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-05 Groundwater 917-05 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-06 Groundwater 917-06 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-07 Groundwater 917-07 18-28 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-08 Groundwater 917-08 18-28 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-09 Groundwater 917-09 18-28 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-10 Groundwater 917-10 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-11 Groundwater 917-11 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-12 Groundwater 917-12 4-14 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-13 Groundwater 917-13 18-28 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> 917-14 Groundwater 917-14 18-28 -VOCs,TPH-g,TPH-d Groundwater plume delineation <br /> Notes and Abbreviations <br /> bgs=below ground surface <br /> CSM=conceptual site model <br /> BTEX=benzene,toluene,ethylbenzene,xylenes <br /> TPH-g=total petroleum hydrocarbons as gasoline <br /> TPH-d=total petroleum hydrocarbons as diesel <br /> VOCs=volatile organic compounds <br /> (1)Sample depths may be adjusted in the field based on geology or field conditions. <br /> Page 2 of 2 <br />