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$ "- vn l®r-;P1 <br /> GE k.' .: ,� , _ :._ ^.,��„.': w'��� � � SH <br /> � „,.�,.R?' ��.%"n <br /> { <br /> t <br /> ._,, ,:r,sn1>In trash tier ba,*let[11/native s:o3l Intarf:,rR nr n nhcsrt cil�tnucn cast'»�r lhn <br /> In#�!tfr,rn, In the cone, t)f tesnks, lone thnn 1,( <br /> tans• s:nmt,lr. from hCnonth the tank it, re uiraPl, einlltinn in r"npacity, aznly <br /> deflated l,v 11"gleam 2 hoard r4jjInaera na 1Yot A nhnrt dtatnncsr Inas, lrnrn <br /> lsnlow the backfill/native stall Intertnro and IaNrs4a#ar than t+�enty-four Inches; <br /> flklt bolaw the the: backfill/nntivc at.il IntsarfI" 90nersslly taken to be ona <br /> in thebackhtar bucket. A Allow' or trowel is carer Ihta is noll in brought up <br /> and backfill mntorial which may hnvss lreesn cut avinald Oela <br /> sample is tnkon by laughing or driving e, Inns' sude•ed {I n the buckaland the <br /> analiner into the newly <br /> exponod r,rrll from the+ d^p{t:nnterd depth and Iat:ntion. Addis#,anal <br /> clnribvio isanra by T'eg€ten 2 llor,rd stnigino trss have Indicntnd that when thorn to <br /> an obv#aus diff,srence in the relative contamination of Coll brought up from <br /> the Intarfaco depth, then it iss the raNtively r.,tsrn contnninntod gall that <br /> ahoseld be arincted for Inclusion in the sample. <br /> SAMPLK CONTAINERS <br /> } Our firm "ares new arempl(s containers of the <br /> t.•e type al?ecitis+d by either EPA or <br /> conkss areere invalvation of samples at a€tan where undergmund atornge <br /> Involved.! for the collation <br /> samp1CA are contained In 40 ml volatile organic <br /> analysis vials (VOAe) when an0vois for gasoline and similar light volatile <br /> compounds Is intended. Th>ene contninors are prepared according to EPA Ste 846 <br /> and will contain a small Amount of Preservative when the annlyals Is for TPH <br /> r ae 904011ne or z1'A 602. Vials intended for EPA 601 anailysls and EPA 624 GCG'lS <br /> Procedures are not preserved. Closure Is accomplished with nn open headed <br /> (syringe saccensible) plastic screw cap brought down on top of a Teflon faced <br /> septum which In uRed to soft' the usmple without headapace. <br /> Water samples Intended for aemlvoiatile and nonvolatile ennlyais such as <br /> tote' all and <br /> grease (TOG) and diesel (TPII lIBF) are collected and transported <br /> In properly prepared neer glass liter bottles. Dark +sn►brr g1.�os (n used In <br /> the mnnufactura of ihoa.e bottira to reduce any adverse effect on tha sample <br /> by sunlight. Antimicrobial preservative may lae edded to the sample liquid if <br /> a Prolonged holding time Is expected prior to nnnlyals. Closure is <br /> accomplished with a heavy plastic screw cap. <br /> Soil samples for volatile. semivolatilo and nonvolatile analyses are all <br /> collected In properly prepared neer brans liners which are 2 inches in <br /> diameter by a Incites In length. Closure' Is accomplished with press fit <br /> Plastic end rasps Which are fitted to the open ends of brass tutee after a <br /> (. sheet of Aluminum foil Is wrapped over the exposed a.acapie material. A non- <br /> contributing/nonstiubtractive tape Is wrapped cneapletely around the <br /> areas whore the plastic caps meet the outer wall at the brass tube.}o�Qt <br /> preaervat€ve other than cold ,storage Is used on tsamplels captures: ., sample of this type. <br /> SAMPLE HANDLING p!d()CEI111RP,S <br /> €. <br /> Solid sample material Is captured by advancing the liner into the soil. This <br /> may be done by pushing the liner Into soft soils <br /> or by containing the liner <br /> Sampling Report 8WSS-C•2 CHEVRON 1918 <br /> Gi.' page 9 <br /> S <br />