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fricultural Commissioner's OfficeTABLE 1 Work Plan, Environmental Site Investigation <br /> 392 South Moffat Blvd , Manteca, California June 18, 1997 <br /> SAMPLING AND ANALYSIS PLAN <br /> RATIONALE SOIL SAMPLING - DEPTHS BGS GROUND TER <br /> GEOPROBE FOR CONTINUOUS GRAB <br /> LOCATION BORING CORE 5 10 15 20 SAMPLE <br /> Define vertical extent(sod) under northern weed oil UST('rank 1) <br /> Determine maximum impact to groundwater Continously core ■ ■ ■ ■ ■ ■ <br /> SB-1 for identification of first groundwater Pb <br /> SB-2 Define lateral extent(soil&GW)to the north of Tank 1 ■ ■ ■ ■ <br /> Define lateral extent(sod&GW)to the west of Tank 1 ■ ■ ■ ■ ■ <br /> SB-3 Continuously core for lithologic control <br /> SB-4 Define lateral extent(sod&GW)to the south of Tank 1 Pb <br /> SB-5 Define lateral extent(soil&GW)off-site, east of Tank 1 ■ ■ ■ ■ <br /> SB-6 Define lateral extent(sod&GW)off-site, northeast of Tank 1 ■ ■ <br /> SB-7 Define lateral extent(sod&GW)off-site, southeast of Tank 1 ■ ■ <br /> SB-8 Define lateral extent(soil&GW)south of former USTs ■ ■ <br /> SB-9 Define lateral extent(sod&GW)west of former USTs ❑ ❑ ■ ■ <br /> SB-10 Define lateral extent(sod&GW) northwest of former USTs ■ ■ <br /> SB-11 Define lateral extent(sod&GW)off-site, north of site ❑ ❑ ■ ■ <br /> NOTES ■ Proposed sample location <br /> ❑ Sample to be submitted to labooratory only if required to define extent of contamination <br /> Pb Sample to be analyzed for total lead +all other parameters <br /> All soil and groundwater samples will be analyzed for TPH-gasoline, TPH-diesel, BTEX and MTBE by Modified EPA Method 801518020 <br />