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„ 3.0 PLANNED ACTIVITIES <br /> 3.1 FREE PRODUCT REMOVAL <br /> The amount of product recovered from the passive recovery device has steadily decreased; however, it is <br /> not clear if this trend is due to the reduced presence of free product, lower water levels, and/or non- <br /> optimum depth placement.of the device in the well. The marina personnel have been advised to check <br /> the depth to water in the well and lower the recovery device such that its base is set to reach the top of <br /> the fluid within the well. The marina personnel will continue to utilize this device until free product is <br /> no longer detectable in well MW-3: The data collected by the marina personnel will be:reviewed on a <br /> monthly basis by SECOR and recommendations for appropriate changes, if any, will be made. The data <br /> collected will be incorporated into the quarterly reports, discussed below. <br /> 3.2 GROUNDWATER MONITORING AND REPORTING <br /> Quarterly groundwater monitoring and reporting will be conducted in accordance with the final <br /> Groundwater and Monitoring Program issued by the Regional Board. <br /> 3.4 ADDITIONAL INVESTIGATION AND/OR REMEDIATION <br /> Based on a comparison between the June 1994 and June 1993 groundwater monitoring results, it appears <br /> that groundwater concentrations are decreasing based on naturally occurring biodegradation. As such, <br /> additional investigation to assess the extent of contamination and/or additional remedial actions are not <br /> warranted at this time. Naturally occurring'biodegradation, coupled with free product removal from well <br /> MW-3, appears to be an effective remedial approach. <br /> The results of the groundwater monitoring will be reviewed on an annual basis. Should these results <br /> indicate the need for additional investigation and/or remediation, an appropriate recommendation will be <br /> L made at that time. <br /> 1. <br /> F.� <br /> GASUSAMTOWERMWKPLAN <br /> 50114-001-01 3-1 <br />