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g <br />dvei��ce <br />G oEnvironmentol. <br />01 April 2004 <br />AGE -NC Project No. 03-1055 <br />Mr. Michael Infirm <br />304 Webber Street, Third Floor <br />Stockton, California, 95202 <br />`W <br />RPR 0 1 2004 <br />HLAIJH <br />"r T /SFRVICES <br />Itis . <br />Subject: Soil and Ground Water Investigation and Remediation <br />Former TRACY DINER - PANETTA PROPERTY <br />95 West I I"' Street, Tracy, California <br />Dear Mr. hlfurna: <br />On behalf of Mr. Joe Panetta Advanced Geo Env iron mental, Inc. (AGE) is providing the following <br />information regarding the ongoing ground water investigation and soil remediation at the site. This <br />letter was prepared subsequent to the submittal of the AGE prepared Excavation andSampling <br />Report, dated 23 March 2004. <br />Five monitoring wells were formerly located on the property. On 15 September 2003, AGE <br />destroyed monitoring wells MW -1, MW -3 and MW -4, located within the footprint of the "new" <br />building. Monitoring well MW -2 was inadvertently destroyed during excavation activities at the site <br />and will be replaced during the next phase of work. The lost monitoring well points will be replaced <br />with new wells northwest of former MW -4, within the proposed parking area, and west of former <br />MW -1, within the City of Tracy right-of-way. These monitoring points are required to assess the <br />success of the soil remediation conducted at the site and to establish dissolved contaminant trends, <br />for site characterization. Previous groundwater monitori ng data has indicated that ground water flow <br />direction at the site is north-northeast and the replacement of the monitoring wells will provide <br />adequate ground water data downgraident of the former tank area (and the former Chevron site, <br />located across Adams Street). Mr. Panetta has not authorized the installation of the additional <br />monitoring wells. However, installation of the new wells is tentatively scheduled to occur in the <br />second quarter or early third quarter of 2004. <br />In an attempt to remove on site sources of contamination AGE preformed two excavations in the arca <br />of the former fuel dispensers in October 2000 and October/November 2003. The soil was excavated <br />and transported to a certified landfill facility for proper disposal. During excavation, an additional <br />UST area was discovered, the tank was removed and soil was remediated. The UST discovery was <br />significant, in two ways: the increasing concentrations of dissolved hydrocarbons in well MW -2 <br />were previously unexplainable and the site qualified for the USTCF. Any remaining contaminated <br />'09 ."16-1i)iih ,_i1;i ;:'U`JJ (i --I112 <br />