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;mss Unocal Corporation { Diversified Business Group - 2121 North California Blvd.,Suite 250 Walnul Creek,California 94596 ;- Teleph ne(925)944-3780 Facsimile(925)944-3781 t 'P UNOCAL 76 August 12, 1999 / Mike It furca Western Division Assets San Jo quin County Asset Management Group Enviro ental Health Division P.O. B x 388 304 E. Weber Ave., Third Floor Stockton, CA. 95201-0388 UNOCAL SERVICE STATION# 0123 1034 C ntral Avenue Tracy, a. Dear Mr. Infurna: I am writing to you regarding Pacific Environmental's December 2, 1998"Soil and Groundwater Investigation"report. In that report, it was stated that drill cuttings generated as part of the work described in that report were hauled to Forward Landfill for disposal. It has come to my attention that the disposal of the soil at Fonvard Landfill cannot be documented. It is not known what happened to the soil. Six yards of drill cuttings were generated during the ins Ration of two wells and one soil boring in August 1998. The soil was piled on visqueen on the comer of the property away from the street. The soil was sampled and profiled(see attachments)for disposal as non-hazardous waste at Forward. Manley Trucking was contracted to haul the soil to the landfill. Manley's crew went to the site on October 31, 1998. Apparently,there was no soil there. Manley never called Unocal, but instead sent an invoice(copy attached)fort the quoted price to haul the soil and noted "No soil on site dry run"on the invoice. I did not see the note when I approved the invoice on November 17, 1998. While reviewing my mid year budget numbers in June ef 1999,I tried to find the bill from Forward Landfill. I was not able to find one, so I looked for the trucking invoice and noticed the note indicating there was no soil. I contacted Pacific Environmental. They were under the assumption that Manley hauled the soil to Forward,but had no documentation regarding the disposition of the soil. I had them go to the site to make sure the soil was not still there. It was not. Pacific contacted the landfill. The landfill had no tecord of the drill cuttings cowing to their facility. I contacted the property owner to see if their maintenance people may have removed the soil while trying to prepare the site for sale, but they could offer no information on the disposition of the soil.