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s • • TABLE 1 R603 OVER EXCAVATION OF DISPENSER AREA CONFIRMATION SAMPLING 6425 PACIFIC AVENUE STOCKTON CALIFORNIA 95207 LOCATION SAMPLE DATE DEPTH EPA METHOD 8020 EPA METHOD 8250OXYGENANTS STATUS ID# SAMPLED FROM TPHg BENZENE TOLUENE ETHYL- XYLENES SURFACE BENZENE ETHANOL MTBE RIPE TBA JETBE TAME FEET mglKg mglKg mg/Kg mg/Kg mglKg mg/Kg mglKg mg/Kg mg/Kg mg/Kg mg/Kg RSCA Tier 11 Action Levels 0 011 66 24 0 22 I FIBERGLASS PRODUCT PIPING TRENCH PL 1 2/23/00 45 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <0 05 <.O..00.5 <0 25 <0 005 <0 005 PL 2 2/23100 4 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <0 05 <0 005 <025 <0 005 <0 005 PL 3 2/23/00 4 <D 5 <0 005 <0 005 <0 005 <0 01 <05 <0 05 <0 005 <0 25 <0 005 <0 005 PI-4 2123/00 4 <0 5 <0 005 0 006 <0 005 <0 01 <0 5 <0 05 <0 005 <0 25 <0 005 <0 C05 PL 5 2123100 5 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <0 05 <0 005 <0 25 <0 005 <0 005 PL 6 2123100 5 <0 5 <0 005 0 006 0 011 <0 01 <0 5 025 <0 005 <0 25 <0 005 <0005 EXCAVATED PIT 2 PL 7 2123100 5 <0 5 <0 005 <0 005 <0 005 <0 01 <05 <0 05 <0 005 70 25 10 005 <0 005 PL 8 2123101 4 5 <0 5 <0 005 0 007 <0 005 j 0 01 <0 5 <0 05 1 <0 005 <0 25 <0 OD5 <0 005 DISPENSER AREAS D1 2123100 3 5 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <0 05 <0 005 <0 25 <0 005 <0 005 D2 2123/00 3 5 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <0 05 <0 O05 <0 25 <0 005 <0 005 D3 2123100 3 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <0 05 <0 005 <0 25 <0 005 <0 005 D4 2123100 3 <0 5 <0 005 <0 005 <0 005 <0 01 <05 <0 05 <0 005 <q 25 <0 005 <0 005 00 CONFIRMATION UNDER OLD ABANDON STEEL PIPING SB1 2125100 3 23 <0 02 <0 02 04 4 1 <0 5 c0 05 <0 005 <0 25 <0 005 <0 005 EXCAVATED PIT 1 SB2 2125100 3 46 0 007 0 018 0 21 14 <0 5 <0 05 <0 005 <0 25 <0 005 <0 005 EXCAVATED PIT 3 S63 2125100 3 071 <0 005 <0 005 <0 005 002 <05 <0 05 <0 005 <0 25 <0 005 <0 005 5134 2/25/00 4 <0 5 <0 005 <0 005 <0 005 <0 01 <0 5 <D 05 <0 005 <0 25 <0 005 <0 005 S85 2125100 3 063 <0 005 <0 005 0 007 0 027 <0 5 <0 05 <0 005 <0 25 <0 005 <0 005 SB6 2125100 35 84 <0 005 <0 005 0 01 Oil <0 5 <0 05 <0 005 <0 25 <0 005 <0 005 CONFIRMATION OF CONTAMINATED SOI[ UNDER SOUTHERN DISPENSER AREA SOUTH 1 21251001 3 1 86 1 0 053 0 032 1 1 8 fi <2 <0 OS <0 02 <1 <D 02 <0 02 EXCAVATED PIT 1 DISPENSER OVER EXCAVATION SOUTHERN DISPENSER AREA(S8 1&SOUTH DISPENSER) PJ 1 WEST WALL A2 311100 2 63 0 013 0 011 0 51 34 <0 05 EXCAVATED A 5 PIT 1 WEST WALL A5 311/00 5 12 <0 005 <0 005 <0 005 0 015 <0 05 PIT 1-NORTH WALL B 5 311/00 5 <0 5 <0 005 D 051 <0 005 <0 01 <0 05 PIT i EAST WALL C5 311100 5 06B 0 009 0 031 0 012 0 063 <0 05 PIT 1-SOUTH WALL D 5 311100 5 23 0 055 018 0 051 034 <0 05 EXCAVATED 0 55 PIT 1 BOTTOM E6 311100 6 <05 0 006 002 0 009 0 041 <0 05 PIT 1 SOUTH WALL EXT 10-55 1 3128/00 55 <0 5 <0 005 0 051 <0 005 <0 01 <0 05