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WORK RE21.LEST FORM <br /> kB NAME' SL/Stoddon JOB NUMBER. 102483-6307 <br /> Store#20632 <br />' SITE ADDRESS 4627 Davind Dnve START DATE 03/04/98 <br /> Stockton,CA DATE PREPARED: 0224/98 <br />' PREPARED FOR Shelby Lathrop PREPARED BY. Greg Mason <br /> SCOPE OF WORK: Monitor and Sample 4 wells <br />' 1) Check in with the store manager <br /> 2) Monitor DTW, DTB,product thickness and D O in 4 groundwater monkonna wells in the following order <br /> MW-2,3, I and 4 <br /> 3 Pump a minimum of 4 well volumes from 4 mondoring wells in the order mentioned in Item 2 <br />' After purging each casing volume, measure and record temp,conductivity, pH,and water clarity, _ T <br /> and odor If separate phase hydrocarbons are present,do not purge or collect a water sample. <br /> One drum will be sufficient to store the purge water _ <br /> Label the drums and place them at the back of the store against the building _ <br /> AN Collect sac 40 ml HCI-preserved VOAs from each well <br /> Label the samples and place them on ice in a cooler <br /> _ 5) Fill out COC and Mail samples to Core Labs for analyses BTEX,TPH-G with MTBE,TBA, Di_PE, ETBE and TAM <br /> Use task#6304 on COC (mail with other Stockton site) <br />' 'EQUIPMENT iVEEDE04, , Y <br /> Health &Safety Site Plan n <br />' Twice the number of needed 40 ml VOA vias <br /> Disposable bailers <br /> I P , purging equipment,YSI 3500 water meter to measure pH,conductmty,and temperature <br />' Submersible pump/generator/extension cord <br /> 1 Drum <br />' Decon Equipment <br /> GENERAL_INFORMATION <br /> Direct all questions to Greg Mason or Shelby Lathrop g (510) 370-3990 <br /> Billing Numbers Monitor& Sample Activities 102483-6307 <br /> Laboratory Invoices Only 102483-6304 <br /> I*ROJECT MANAGER Shelby Lathrop AUTHORIZATION <br /> wkreq wk4 <br />