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! <br /> 1 <br /> I <br /> N <br /> ► LEGEND <br /> O1 VERIFICATION SOIL SAMPLE <br /> 41! <br /> EXISTING MONITORING WELL <br /> 0 20 40 60 L EXISTING PIEZOMETER <br /> Scala In Feet REPLACEMENT WELL <br /> LIGHT POLE <br /> --G.— UNDERGROUND GAS LINE <br /> BENCHMARK <br /> TPH-g TOTAL PETROLEUM HYDROCARBONS REPORTED AS GASOLINE <br /> BW-D2-14 TPH-d TOTAL PETROLEUM HYDROCARBONS REPORTED AS DIESEL <br /> TPH-d 16 <br /> NO. VERIFICATION SAMPLING LOCATION SW-133-10 NOTES <br /> 1 BWT-C14 7t TPH-d 1.7 - 1.MW-211 WAS INSTALLED AS A REPLACEMENT WELL ON DEC 2.2002. <br /> BW-D3-16.2 <br /> 2 BWT-D1-042.2.THE DEPTH OF EXCAVATION WAS APPROXIMATELY 16 FEET BELOW <br /> EXISTING GRADES. <br /> 3 BWT-E14 t - — TPI-1--d 4.9 <br /> 4 BWT F1r1 �_-_ �d y iF. tr:i i 71 DITC-,H �Y 3.THE IXCAVATION WAS BACKFILLED WITH 9 FEET OF 1.11/2'DRAIN ROCK <br /> OVERLAIN BY FILTER FABRIC AND BACKFILL OF 3/4'AGGREGATE BASE <br /> 5 SW-A2-8u :, MATERIAL COMPACTED UP TO 95%. <br /> ► '� _ B <br /> 8 SW-82.8 N RESULTS ARE PROVIDED IN TABLE L <br /> - _ <br /> 20'HIGH INTERLOCKING <br /> 4.ALL VERIFICATION SAMPLE <br /> 7 BW-B2-16 <br /> L:k.3FCAC SAMPLE RESULTS ARE NON-DETECT EXCEPT FOR THOSE INDICATED <br /> j SHEETPILES TO SUPPORT <br /> O1 2 3 4 NORTHERN EDGE OF IN THE FIGURE.SOIL CONCENTRATIONS ARE PROVIDED IN mg/kg. <br /> B SW-C2-10 PROPOSED IXC ATION LIMITS - EXCAVATION <br /> 9 SW-E2-12 1 � 9 . <br /> SW-F2-12 8 <br /> — 10 11 <br /> 11 SW-G2-11 4 ©/ O 2R 14(;L6 <br /> 1 SW-83.10 v 4 . I I i 5 I f 1 <br /> I15 <br /> BW-03-16 t t 181 <br /> BW-02-14 E A 1 13 18 <br /> �. 19 A! <br /> BW-D2-11 j -BW-03-16.1 1721 BW-03-16-2 I 20 �` ( BW-F3-15 <br /> CA- L PI=E} <br /> 113 BW-F3-15 _r.-L _ �P — 'l �_ _"v - c: �`�— � �\ TPH-d 7.7 <br /> 19 SW-G3-10 1 j 1F 4- 25 <br /> 20 SW4B4-8i I i c 27 <br /> ii <br /> j } <br /> 21 SW-134-10 j { 23 24 28 <br /> j <br /> 22 BW-04-16 ..._� -._,.4 s_,__.� — i •�� ' � F>SiE�, 2 I 32 <br /> 23 BW-05-18 <br /> 24 SW 0510 p7£ <br /> 25 BW-E5-18 4 t TOE OF EXCAVATION <br /> 26 SW-65-16 t _ _ �.. __ -w TOP OF EXCAVATION <br /> 27 SW-65.10 r � ���-----`_`'f--- .. <br /> 28 SW-CB-10 4 C`�>- f B' <br /> 29SW-06 10. S SSS ( SW-05 t0 <br /> 130 SW-E6-10 <br /> t fr %."PH .I+L Vf:E�t5C3t:ii':j•;F'Y �+`k.i'F i_i <br /> 31 SW-F&10 5 i yf 0ASED ON DECU AND PEN <br /> FFNIGE <br /> 32 SW-136.10 ; <br /> k}l <br /> BW-05-16 <br /> TPH-g 1.5 <br /> PLAN <br /> FIGURE 2 <br /> EXCAVATION LIMITS AND <br /> VERIFICATION SAMPLE LOCATIONS <br /> MCMULLIN DEHYDRATOR STATION <br /> PACIFIC GAS&ELECTRIC COMPANY <br /> 'ATTACHMENT 4 <br /> DM: G !e emedie on a rve es manmm_fiW.dgn 01-Jui-2004 <br />