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Addendum to Work Plan <br /> July 8,2005 <br /> Page 2 <br /> Fremont Street approximately 25 feet east and west of boring GP-5. The proposed boring locations are <br /> shown on Figure 2, attached. All of the borings will be advanced to a maximum depth of 20 feet below <br /> ground surface (bgs). Temporary PVC well screen will be placed in each boring to allow groundwater to <br /> flow into the boring. One groundwater grab sample will be collected for laboratory analyses from each <br /> boring in which groundwater is encountered. The samples will be transported under chain-of-custody <br /> procedures to a California certified laboratory for analyses. All of the groundwater samples collected <br /> from the borings will be analyzed for total petroleum hydrocarbons quantified as gasoline (THP-G); <br /> benzene, toluene, ethyl benzene, and total xylenes (BTEX); and gasoline oxygenates/additives. The <br /> borings will be backfilled with neat cement. <br /> Condor respectfully requests approval of this work plan addendum. The fieldwork portion of the <br /> additional Phase II investigation is scheduled to occur on July 26, 2005. A report describing the results of <br /> the additional Phase II can be submitted by August 30,2005. <br /> Respectfully submitted, <br /> CONDOR EARTH TECHNOLOGIES, INC. <br /> Lee H. Morse, P.G. Jeff Willett,P.E. <br /> 4w- <br /> Associate Geologist Engineering Services Manager <br /> Attachments: <br /> Figure 1 Vicinity Map QROFESS/ONS <br /> Figure 2 Site Map—Proposed Boring Locations w O LEE IS QRO�EE /ONS! <br /> �o o s <br /> cc: Michael Conrad,KSN a � 44588 Cn LU z �=Q� ��'fq�Fy� <br /> d EXP. 03/06 Zo. =' Cr 2 en m <br /> rry <br /> CNILO EXP. 03/06 <br /> OF CAS\E F <br /> _ �T O7ECHN�G <br /> OF CpLt��j <br /> P:\4000_pd\4038 KSN-San Juan&Fremont\4038D KSN Additional Phase R\Work Plans\WP Addendum 4038Q.doc <br /> i l� CONDO <br />