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i <br /> Wright <br /> - Environmental <br /> N Services, Inc. <br /> Construction ♦ Engineering ♦ Remediation <br /> d r3 <br /> April 21, 2000 <br /> Project No 4184 1 � Z <br /> City of Tracy1 //� 1(� �-� ' <br /> 520 Tracy Boulevard (� <br /> Tracy, CA 95376 <br /> Attn Mr Paul Verma <br /> Re: Preliminary Site Assessment Investigation, <br /> Tracy Auto Stereo, 10 West Grantline Road, Tracy, CA <br /> Wright Project No. 4184.1 <br /> Dear Mr Verma, <br /> Wright Environmental Services, Inc (Wright)has completed the work for the Preliminary <br /> Site Assessment Investigation at the above referenced site located at 10 West Grantline <br /> Road, Tracy, CA (see Figure 1) The purpose of this work was to ascertain the depth to <br /> groundwater, and identify suspected petroleum contaminants in soil and groundwater near <br /> . and around the former tank area as required by the San Joaquin County Public Health <br /> Services Environmental Health Division (PHS-EHD) in their letter dated January 26, <br /> 1998 Wright has discussed the initial investigation approach presented in our letter dated <br /> May 23, 1997 with the PHS-EHD, and agreed upon a reconnaissance approach to <br /> ascertain current site conditions prior to installing monitoring wells <br /> Background <br /> Wright removed five underground storage tanks from the site on October 23, 1993 The <br /> tanks included Tank 1, 90-gallon, Tank 2, 300-gallon, Tank 3, 280-gallon, Tank 4, 18- <br /> gallon and Tank 5, 18-gallon Tanks 4 and 5 were part of the associated piping for Tanks <br /> 2 and 3 The tanks had apparently been used for gasoline storage However, the tanks <br /> were apparently installed at different intervals based upon construction materials and <br /> methods In addition, it was common for kerosene (such as lamp oil) to be dispensed <br /> from facilities at the time Given the construction and observation during removal, Tank <br /> 1 may have been a kerosene tank <br /> 67 E 10th Street o Tracy,CA 95376 <br /> 209 833 0758 a Fax 209 832 5152 <br /> wraght@tnreach com Lac #651501 A-B HazMat page 1 <br /> websit htip//home anreach comlwraght <br />