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encountered (depth to groundwater in this area is assumed to be approximately 20- feet). In addition a soil sample will be collected from near surface soils to perform a Resist.iviry "R"-value determination for Parcels 5 and 6. A single soil sample will be collected and tested for R-value using Cal-Trans Test 301. 'TR-value testing results will be used in the parking lot design proposed for those areas It should be noted the exploratory drilling through former excavations,or areas where buried objects have been located can create difficult drilling conditions, including auger refusal to advance at an additional cost to the Commission. Should it become apparent in the field that boreholes cannot be advanced through the excavations,identified areas. The boreholes will be located as close as possible to the original drilling target,and the sampling performed at that point. Cuttings from the borings and rinse water will be drummed and labeled for storage on the site until their content is known and the soil can be properly handled. Disposal of cuttings and rinse water is not included in this scope of work. The soil borings will be grouted following the requirements of the PHS/EHD. Exploratory Boring Locations and Purposes Parol No. & Esplorstory Boring Putpoze and Dsptb Chetalealh'hysical Analyses parcel 1,1 Hand Auger to 10' Investigate anomaly Pm Parcel 1, 1 Borehole to 20' Pons.o&situ contamination TPHO,T PHD Parcel 2,2 Had Auger to 10' Investigate anomaly PID Parcel S Borehole to 20Former UST,"R"value Min 2 for TPH4.TPHD; highest for BTFX Cal-Trans Test 301 Parcel S.2 Hand Auger to 10' Investigate anomaly PID Parcel S.3 Boreholes to 20' Former baacry storage IPA 8240,8270,CAM 17 Parcel 6, l Borehole to is, "R"value;radar anomaly Cal-Trans Test 301;TRPH, selected metals Chemical Analytical Methods Ste--:ed soil samples from the parcel will be analyzed as noted in the table above for ToW P_--oleam Hydrocwtons (17T, as gasoline and diestl ('17HG,TPI-M) using E_-'�A Nie'ttod 301_J_NL The soil sample wish the lughesr TPH conc==ad= will Ce analyzed *cr Benzene.Toluene, E:hyibeaz=c and icW Xylenes using FPA Mcthcd SO-M. A sings soil sample from aach buena on Parcel S will be analyzed for vclarEe and semi-volatile organics using E'A 1�Ie:hcd 3240 and 32-70 and C.kti1 17 NfetaIs. All sampics will be analyzed on a Standard Ttzm=uad Reports ct•mmar�inte!.ffi:e:te;,e_or,will be pre^ared ;ollcwing the rec_irt of t c laborltory resits anri . ;i mm r»=c the conditions enceuntemd in the field. The s.j-r=ar-, leiter will include =omraepdadcns on whether to procs--d with the final rcper , {iir-.he,-!valuation of ccnt3minated soil. or both. A technical renart will be pre�artd dcc-mnenting the Phase II Ha`_rdcus materials -4s5es3:;1C= Tae Phase II re_cr x+411 :t:c`Lde a';sc.:ssicn er the in-m- ,U-sLcn findings, labor iorl test results_ conclusions and creliminary recotutnendazoas for Pip 3 E0 39a -1V1H3wr106I1%H3 1H9ItJM 90:bT L66T/90/OT