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. recharge for up to 24 hours Samples were collected as soon as the well had <br /> recharged to a level sufficient for sample collection Floating Product skimmer <br /> pumps were removed from wells MW-2 and MW-7 at the direction of Aegis <br /> Environmental, Inc New Enviro Products passive skimmers will be installed in <br /> wells MW-2 and MW- 4 duringf fourth quarter 9992 monitoring <br /> Quality Control samples for third quarter 1992 monitoring included a trip blank, <br /> field blank and a duplicate well sample The duplicate sample was collected <br /> from monitoring well MW-6 <br /> Samples were cooled with ice packs and delivered, under chain-of-custody <br /> control, to Sequoia Analytical laboratory for analysis <br /> ANALYTICAL RESULTS <br /> Samples were analyzed for total petroleum hydrocarbons as gasoline, <br /> benzene, toluene, ethylbenzene and total xylenes. Analytical results from third <br /> quarter 1992 monitoring and four previous monitoring events are summarized <br /> in Table 2 Certified analytical reports and chain-of-custody records for this <br /> quarters event are included as attachments to this letter <br /> If you have any questions, please call <br /> Very truly yours, <br /> EMCON Associates <br /> James R Pittilla <br /> Environmental Sampling Coordinator <br /> /ZVIF �' <br /> Phillip R Graham <br /> Environmental Sampling Supervisor <br /> Attachments Table 1 Monitoring Well Field Measurement Data <br /> Table 2 Summary of Analytical Results <br /> Site Map,Certified Analytical Reports and <br /> Chain-of-Custody Records, Water level/ <br /> Floating Product Survey, <br /> Water Sample Field Data Sheets <br /> cc. F Kurt Miller, Shell Oil Company <br />