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FULLER MOBILE ARE PARK Phase I Remedial Work Plan Page: 5 i The laboratory samples will not have head space and will be irnn-iediately shed in their liners using aluminum foil lined plastic caps The remaining sample will be removed from its liner to be used as an aide to the on-site geologist in log- ging the material at that depth Coil samples collected for analysis will be analyzed using EPA method 10301 LUFT for gasoline range petroleum hydrocarbons, EPA method 8020 for BTX&E compounds and metnod 3550 TEPH for total extractable petroleum hydrocarbons kerosene, diesel and motor oil The minimum deter tion Iimits used for each analyte will be 005 ing/kg for BTX&E, 2 5 i:ig/ka for gasoline, 5 0 mg/kg for kerosene and diesel and 50 0 mg/kg for motor oil Analyses are to be conducted by GeoAnalytical Laboratories, Inc 3 a Grou,.d Water Sampling A travel blank oiovided by the laboraiory will accompany the sample vials from 'he time they are pickea up from the lab to the time they are delivered to the lab This travel blank should be listed on the Chain of Custody, but will be analyzed only if all samples contain the same contaminants All sampling equipment including the pump, bailer, and cables, used by .am;i- ling personnel, will be disassembled, if appiocpriati,, and steam cleaned prior to commencement of sampling These procedures Nr ill also t): totlo,, gel beovecn each well, sampling point, and at the end of the sai-nphng d.y L -ionized or organic-free water (also provided by the laboratorv) will then be iatroduced ,nto the pump or bailer as a final stage of cleaning This water will thr_n tie pumped, or gently poured, into sample vials to be used as pump or bauiui blacks Ti i,ese blanks will be tested only if their corresponding samples are found to contain contaminants - Immediately prior to sampling, water levels and well depth measuiements will be taken in all wells at the si-,e Each well will be evacuated using a stainless steel bladder pump, which does not introduce air into rhe water column, or a Teflon bailer The pH, temp;rature, and electrical conductivity of the water will be monitored as the well is evacuated These paraineters will be noted on a field log Instruments calibrated to known standards will be used to monitor tlie�e parameters At least five (5) well volumes will be evacuated from each well, and more, if necessary, until the above parameters have stabilized Wells that are de-watered before evacuation of five (5) well volumes has been accomp- lished ccomr-lisped will be sampled upon 80 percent recovery of the initial water level The