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Geofogica(Tecfmics -Inc. <br /> 2741 111w Pga6 <br /> Modesto, Califon,, 95351 <br /> (209)538-64241Taz#538-5852 <br /> WORK PLAN <br /> Preliminary Site Investigation <br /> Cutter Lumber <br /> 3422 S. El Dorado <br /> Stockton, California <br /> May 3, 1996 <br /> Project No 443 2 <br /> I <br /> 1.0 INTRODUCTION <br /> This Work Plan outlines the procedures, protocol, and methods of the proposed <br /> investigation to help characterize the vertical and lateral extent of possible <br /> petroleum hydrocarbons that may have been released from former aboveground and <br /> below ground storage tanks on the Property, and to investigate the physical condition <br /> of a nearby domestic water well in which petroleum hydrocarbons have been <br /> detected <br /> I2.0 SITE HISTORY <br /> Currently, Otter Lumber is operating on the Property as a tenant. Previously, <br /> I Western Lumber Sales and Power Lift, which were both owned by the same <br /> individual, operated on the Property for many years One of the businesses, Power <br /> Lift, operated 3 UST's which were removed in 1989 and were found to have leaked <br /> fuel which impacted the soil and groundwater <br /> In 1991, the tank site was over excavated and the soil was disposed of. In 1992 and <br /> 1993 a total of 5 groundwater monitoring wells were installed at locations around the <br /> former tank pit Since groundwater monitoring has been conducted, the level of <br /> total petroleum hydrocarbons has decreased to non-detectable levels and BTEX has <br /> . decreased to MCL or less <br />