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Notes: <br />ALL UNITS REPORTED IN MG/KG (MILLIGRAMS PER KILOGRAM) <br /><50: NON DETECT (LESS THAN REPORTING LIMIT) <br />TPH-MO: TOTAL PETROLEUM HYDROCARBONS AS MOTOR OIL <br />SOIL SAMPLES COLLECTED AT 2-5 FEET BSG <br />S 12-2: <50 <br />• <br /><S8-5: <br />S9-5: <50 <br />&08-2: <50 <br /><50 <br />S11-2: <50 <br />• S 11-5: <50 <br />S10: No field evidence of impact <br />0 <br />0Z ESTIMATED LATERAL EXTENT OF TPH IMPACT <br />�A S6-2: 4,220 <br />'0 S6-5: <50 <br />�a <br />S6SW-N: <5 S613-2: <br />SW -E: 58.9 / <br />SW -N: <50 <br />SW -S:191 <br />•S5-2: 219 <br />S5-5: <50 <br />AdvancedGeo <br />Environmental <br />(800) 511-9300 www.advgeoenv.com <br /><50 <br />LEGEND: <br />❑ APPROXIMATE LIMITS OF EXCAVATION (AUGUST 2018) <br />SW -E: 58.9 SOIL SAMPLE LOCATION DESIGNATION <br />• AND TPH-MO CONCENT <br />F�ATION <br />APPROXIMATE LOCATION OF UNDEGROUND <br />COMMUNICATIONS LINE <br />S7-2: <50 <br />S7-5: <50 <br />• <br />N <br />0 10 20 <br />APPROXIMATE SCALE IN FEET <br />LATERAL EXTENT OF TPH IN SOIL <br />GLOBAL MATERIALS MANAGEMENT <br />1640 NORTH BROADWAY <br />STOCKTON, CALIFORNIA <br />DATE: OCTOBER 2018 <br />FILE: SP <br />DRAWN BY: BWM <br />PROJECT NO. 18-4357 <br />FIGURE 4 <br />