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CVV_2 7 <br /> A S S O C I A T E S I N C <br /> RECOMMENDATIONS <br /> Based on the results of the third quarter 2003 monitoring episode, we recommend the following <br /> • Conduct the fourth quarter 2003 groundwater monitoring and sampling of wells MW1 <br /> through MW10 and DW and analyze samples for TPHg, BTEX, and MTBE by EPA <br /> method 8015B / 8021B <br /> • Request MTBE only be screened by EPA method 8020, and if positive, confirm with <br /> EPA method 8260B Because the previous eight (8) quarters results have consistently <br /> contained no detectable concentrations of ETBE, DIPE, TBA, TAME, 1,2-DCA, and <br /> EDB, ATC requests to discontinue analyzing groundwater samples by 8260 except for <br /> MTBE confirmation analysis as described above 1 r <br /> • Continue to monitor DW and ICC and 2CC Effluents on a monthly basis If <br /> hydrocarbons are again detected in the either of the 1 CC or 2CC Effluents, the carbon <br /> will be replaced <br /> • Continue to monitor well MW2 for floating free product and maintain skimmer system <br /> • ATC recommends sampling the three domestic wells across Munford Street to the south <br /> of the site This has been done on two prior occasions at approximately one-year <br /> intervals, and it has been approximately one year since the last off-site sampling event <br /> © Prepare an Interim Corrective Action Plan and upon approval install a soil vapor <br /> extraction system <br /> • <br /> S\Env:romenta11163431REPORTS13gr-2003 doc 5 <br />