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.i +1•�`� '�" 4.y �i �rrt�� .�' J -"x L, "� n..rr,.._ �'' <br /> p <br /> t� i.. r_- s':x.'A ti -.: r3•:r� i� - �. ''.*i x �'�`..F'Sg >��:.. ,)4 � '-'�� •yP..�r � s .L - �� t.� r'� � ��—�'��- � - -"�` - <br /> T <br /> XM <br /> , <br /> 7 April 1992 <br /> (GeoAudit CV55-59E2-1.32) <br /> Page 2 of 3 <br /> each, .BoringS SB- 3, an to 5provide ldata on the eastern be located asSelimit tof <br /> building Po <br /> •contamination. <br /> suggested that soil contamination may not be <br /> The results of Phase 1 <br /> present below a depth of approximately 22 feet. We therefore <br /> estimate that Phase 2 borings will be terminated etects c t feet, unless <br /> naLon, in <br /> field screening <br /> he borings sat 4 <br /> wills be extended until either the depth <br /> which case is reached or until no <br /> limit of the trailer-mounted drill rig <br /> further contamination is detected. <br /> If field screening detects any contamination in any of the borings, <br /> wiil.be. drilled .within a.distance.of l0, feet <br /> an;;additional-boring: ; , <br /> of the subject boring (Figure 2) -fo- <br /> All, boring�swill <br /> willbbe Sana y ed in accordance ncer with PA methovals. A d g0156m <br /> soil camp <br /> for diesel fuel. Because previous sampling detected hod o 8020 volatile <br /> compounds (sTEX) , further analysis using <br /> unnecessary. <br /> A detailed list of the proposed work -_�teps is given below: <br /> 1) Notify the EHD 48 hours prior to commencement of any work. <br /> 2) Drill 4 to 8 borings utilizing a hollow-stem auger drill rig. <br /> The estimated boring locations are depicted an Figure 2. The <br /> ngs is <br /> termination <br /> IfirstI four borings land 30 projected <br /> te <br /> for the <br /> 40 feet <br /> forthe optional <br /> borings. <br /> 3) obtain split-soonete soil samples five-foot <br /> using a <br /> smpler loadedwith thr e <br /> spre-cleaned b ass tubes. 1 <br /> p P <br /> 4} Preserve soil samples in the lead brass tube by covering both <br /> ends with aluminum sheets, capping and sealing with tape. <br /> 5) Label and log soil samples on a chain of custody form. <br /> 6) Store the samples under ice and transport the samples in a <br /> - - chilled- container _ to- -a - State certified laboratory for <br /> analysis. <br /> Analyze the samples from each boring for total petroleum <br /> --D) in accordance with EPA method 8015m. <br /> hydrocarbons (TPHmill 111111111 <br /> _ � <br />