SITE INFORMATION AND CORRESPONDENCE

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,y Wright December 13, 1995 ''%� "' Environmental San Joaquin County Public Health Services V r . A r � N9: 21 Services, Inc. Environmental Health Division 306 East Weber Avenue P.O. Box 388 Stockton, CA 95201-0388 Attrr Ms. Linda Turkatte Re: Naiome King Trust King Island: Underground Storage Tank Removal Sal Excavation and Disposal Dear Ms. Turkatte, On behalf of the administrator of the Naiome King Trust and Estate (Estate) I am submitting to your office the attached permit application for the removal of one underground storage tank (UST). This permit application is being submitted to initiate oversight of tank disposal operations, sal, groundwater and stockpiled soil sampling which is required for the tank which has already been removed from the tank excavation by the estate. In addition Wright Environmental Services, Inc. (Wright) has prepared a brief history of actions taken to date by the estate and a workplan outlining initial actions proposed to determine if a release has occured. Site History During the first week of November 1995, Wright was asked by the administrator of the Trust to visit King Island (Site) to look at a potential UST located under a covered parking structure. Wright was informed there was a small hand pump which may be connected to a buried tank of unknown size which may have contained gasoline but the last known contents were unknown as the original property owners were deceased. Wright advised the trust of potential regulatory agency involvement if a petroleum tank was discovered, requirements associated with removing a petroleum UST and potential actions that may be required if a petroleum tank had been leaking. Approaches to determine the size, last contents and if a tarn was in fact present were discussed. On November 10, 1995, Wright was contacted by the trust and was informed that soil over the tank had been removed, that a tank had been discovered, removed and placed upon the ground - adjacent to the above referenced location. Wright scheduled a visit to the island to look at what was discovered for November 11, 1995. During the November 11, 1995 visit to the island it was determined that the tank was approximately 500 gallons in capacity, that it had numerous small holes in the bottom. Wright inspected the soil stockpiled next to the open excavation and detected a slight odor however the presence of rotting organic material in the soil could have been responsible for the slight odor. Wright suggested that the soil should be placed upon and covered by plastic sheeting and that analysis of soil samples from the stockpile and excavation would determine if the odor was the result of rotting vegetation or regulated substances last contained within the empty tank On December 9, 1995 Wright returned to the island and observed the stockpiled soil being placed on plastic and the tank pit being excavated. On December 9, 1995 Wright was given authorization by the trust to notify the San Joaquin County Public Health Services- Environmental Health Division (PHS-EHD). 4220 Commercial Dr.#5 - Tracy,California 95376 Telephone (209)833-0758 - Fax(209) 832-5152