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06/03/1999 09 51 70783B2323 GALLARD© AND ASSOC PAGE 07 L mited Soil and Grou ndwata Report-05/24/99 Page 3 Western ori&Spreadtng Site Pro cct No 024 98 I2.0 SITE ffiSTORY 2.1. Site Location and Description ' The site is located at 19256 North Highway 99 in A.carnpo, California, (See Figure 1) The site property is bordered on the north side by an apple orchard and by an open field contammg grape vines ' to the south. The front of the property(west)is adjacent to approximately six residential units and by Woodbridge Road, a frontage road nirming parallel with Highway 99. And the east site of the property is bordered by an open field, which we understand is currently being investigated by the Central Valley Regiond Water Quality Control Board for impacted groundwater. The property is curremtly occupied b'WesternOil and Spreadmg,Vile,a liquid asphalt distribution business. The site ooG+ipies approximately 2 13 acres of land,is relatively flat, and is covered with natural ground and gravel. The site contams 11 insulated aboveground tanks(AST's)used to store vanes road oils The site once contained five underground fuel storage tanks (UST's) used to store hgwd aspbak, diesel Ifuel, and gasoline(See Figure 2). 2.2 Previous Work and Site Condition IIn 1955 Mr.Lloyd Moore moved his conVany Moore and sons from the corner of Cherokee Latae and Lockeford Street in Lodi, to the present location at 19256 North Highway 99 in Acampo, California, Soiretitne during the 1960's the company was sold to the Vara Lobensels who named the company Westem Asphalt. In 1985 the business was purchased by Make and John 'Telfer and renained Western W and Spreading, Inc The company is currently operating as a liquid asphalt distribution business On October 22, 1987,two 20,000-gallon UST's used to store liquid asphalt, one 2,000-gallon UST used to store diesel fuel,one 1,000-gallon UST used to store gasoline fuel, and one 500-gallon UST used to store gasoline fuel were removed from the site property. Analytical results collected during the tank removals indicated petroleum impacted sof wrtlim the 20,000-gallon and 2,000-gallon tank I cavity locations. On December 10, Gaflardo & Avochites was retamed by Telfer-Sbeldon's Vice-President, Jeff Hopkins, to prepare a workplan and conduct a limited soil and groundwater investigation for the 19256 Forth highway 99 site property IOn December 16, 1998, a meeting was held at the Sam Joaquin County Envirwrwntal Health Division's (SJCEHD) Stockton office In attendance for the meeting were Jeffrey Wong and I Margaret Lagono of SJCEHD,Jeff Hopkins of Telfer-Sheldon Ort, and Rafael Gallardo of GaUardo &Assocums. Tlie purpose of the meeting was to discuss the current condition of the site property and to discuss the requirements necessary to prepare an acceptable workplan for SJCEHD IOn Deceraber 22, 1998, Gamando&AssocWes submitted a work plan to perform a limited soil and groundwater mvestigation at the site to SJCEHD for review and approval. I I