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- 'pF: - -ec "w? - Yti '.19F. -'3E'�'� $�.`2+y `i -�3 �s.l - YT�"S" -• L' 3'�l � �'" -L:T � � <br /> _ _ � '�,* � a•� �'_ �^ydi,. � -rv�. � d5��'1v "^"2r �- Y"siiS�f "; {`' i. �'t <br /> T <br /> � - -�- �°""i � -,F L � :� r •3�• ` s�wF�'w, -r"«�.'� �-trr� �r���""' �"r'.Y�; Y,"� <br /> i <br /> t <br /> M� <br /> w <br /> I{oyal Oak Se"'i19s S I,r,"u <br /> Extended Ground 11'aler Int,esligation Repor4 <br /> Sautpling Protocol <br /> Page 3 <br /> Ground JVater S(t►rtplirig <br /> collie tiffle <br /> A travel bltrnk provided by tile 1lab)laboratory <br /> ting I ey4ttverc danied elivcrcdtlto tltc 12bC vials oThils it. <br /> r tvcl <br /> they were picked up front the k <br /> blank was listed oit the Chain of Custody and as7alyzed. <br /> All sampling equipment includini the I rip, bailer, and cables, used by sampling <br />*. nt of sampling. <br /> personnel, was disassembled and steam cleaned prior to contntenceme <br /> De-ionized or organic-f rzs avater final(also stage of cleaning,btlThis laboratory) <br /> ate�was thenten introduced <br /> gently poured <br /> into the pump or battler <br /> into sample vials tobe used <br /> nts s punlP or the corres bailer <br /> lank. This <br /> his blank was not tested due to <br /> the absence of co <br /> Immediately prior to sampling, water levels and well depth measurements were taken in <br /> all wells at the site. Each well was evacuated using a stainless steel submersible pump, <br /> which does not introduce air into the water cnlumn. The pH, temperature, and electri- <br /> cal conductivity of the water was Monitored as tile well was evacuated. These parame- <br /> ters were noted on a field log. Instruments calibrated to known stanards es were evacuated weiru ed to <br /> ch <br /> monitor these parameters. At least five (5) <br /> well, until the above parameters were stabilized. Wells that were de-watered before <br /> ation of five (5) well volumes was accomplished, were sampled upon So percent <br /> evacu <br /> recovery of the initial water <br /> a Host contaminate lev wellsel. The as beor st knower n torr estimated. Thensa sampled <br /> order of the least to the <br /> were pumped from a stainless steel bladder pump or carefully poured from a Teflon <br /> bailer into clean glass vials with Teflon-fisted screw caps and half gallon plastic <br /> containers provided by the laboratory. Care was taken to ensure that no air space <br /> existed in the vials by inverting to check for bubbles acrd re-sarr,;,<<-�, if necessary. The <br /> samples were analyzed within lel days accordi>� <br /> collected for analysis were analyzed by EPA V`oes <br /> tid"602 for purge�bfe,aromatics aater nd <br /> halocarbons, and Ittcoicd 50301modifted 8015 for total petroleum hydrocarbons as <br /> gasoline. <br />