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_.mA_ _ MIR <br /> .,,,A , <br /> Clayton <br /> FIs. Laurie Cotulla <br /> June 11, 1990 <br /> Page <br /> 'V <br /> :Methods used to analvz_ soil and groundwater samples from the three <br /> wells onsite were sclectcd to establish a baseline envlranmen[a! condition at the site, <br /> and to assessmonitoring <br /> soil and lent ogroundwaterths for possible t ontamination frorn (1) the former <br /> UST. (2) USTs upgradi,rnt at' the subject property, and (,) the possible previous use <br /> Of pesticides onsite. The soil and groundwater samples were analyzed by the following <br /> methods: <br /> • EPA VeLhod 4030,30I5-8020, for TPH as , <br /> • EPA Method 118.1, for total recoverable petroleum hasOline ydrocaforB <br /> greaease ro ns and oil and <br /> • EPA Methods SOSO (soil) and 608 (water) for organochlorine <br /> pesticides/polychlorinated biphenyls (PCBs) <br /> All samples were transported to Clayton's State-i zrtitied Iaborato <br /> chain-of-custodv. Detailed laboratory results are included in Atta a CCo y <br /> mpanied b <br /> summary of th?se results is presented below. B. A <br /> Soil Samvle �nalvtical Results, <br /> MW-1. MwF . <br /> EPA Meth tG.. y 13, ht3V 2 MW2 PMitiV 3 MW,3F.lmFf.oi: <br /> �ettettots:. <br /> F1 - uli/1t�` <br /> (conx:enrrarions . : l� <br /> Senzrn�' <br /> ND* ND <br /> ND ND ND ND <br /> "Toluene 10 ND 5 <br /> ND ND 40 <br /> Xefenes50 5 <br /> ND ND ND ND <br /> EthylbtweneH 166 730 5 <br /> ND ND ND ND <br /> TPGasoline 350 330 <br /> �---- NO ND ND ND <br /> 418.1 MW pop 2 000 � <br /> (�nxnxrarioa. '��� <br /> -- -- my - -- - - <br /> Oil and Grease �0 <br /> and Recotirrante 30 ;U ND 250 <br /> -.[-Ivdrocarbons iU 10 Mg/kg <br /> for ND ND. . t, <br /> ND <br /> ND <br /> QrgarsocttY�rinc ND ND Variables . <br /> ?esticidcyPCgs. <br /> £^Qntxnrrrritin -. <br /> j.: <br /> b J ND U1 uetertr�t <br />