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29 <br /> - EXPLANATION <br /> - 708 <br /> 1.68 1000 µg/m3 PCE soil vapor <br /> 115 isoconcentration contour <br /> 28 <br /> 30 5000µg/m3 PCE soil vapor <br /> I 0 isoconcentration contour <br /> 27 Al 7$.6 642 ' City of Lodi Industrial Waste <br /> Line <br /> 031 <br /> City of Lodi Sewer Discharge <br /> 26 6 <br /> . Line <br /> 22 2$.7 24 26 4 032 IE 25-foot grid <br /> } 144 233 21' 1,010 Approximate Extent of <br /> 38-1 2-3 Commercial PCE ESL in Soil <br /> 20 19 41 17 18 4,$2 2 33 vapor(67 pg/m3) <br /> Proposed Soil Vapor <br /> 21 211 10.8 435 842 237 3131,0806,U0 Sampling Probe Locations <br /> [ 12 130 14 1540 41,900 40 3434 <br /> .6 <br /> 1 7 3 <br /> 1.260 1,730 L P-s3,1 0 98.7 <br /> 11 iQ 647 8 OS-2/ 36 35 <br /> 48.6 87.8 <br /> 3,4801�3 .27 <br /> -/ - 3 41 <br /> as 16.800 3.10 <br /> 16,800 <br /> Southern Plume Monitoring Well <br /> PSG Sampling Locations(July 2020) LSP Passive Soil Gas(PSG)Sampling Location ID <br /> 0 50' <br /> PSG Sampling Locations(December 2020) Soil Vapor PCE Concentration inµg/m3(micrograms per cubic meter) <br /> PSG Sampling Locations(February 2021) Approximate scale <br /> PROJECT TITLE <br /> FIGURE 3 <br /> PROPOSED SOIL VAPOR SAMPLING PROBE LOCATIONS <br /> SOIL VAPOR SAMPLING WORK PLAN & DATE <br /> LODI SOUTHERN PLUME (LSP) PSG SAMPLING PCE CONCENTRATIONS 10/13/2021 <br /> C1_■U■IL Ny1DM TECF CLIENT <br /> cciE R� iP � CITY OF LODI, PUBLIC WORKS DEPARTMENT <br /> iw <br />