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' Y <br /> R.W.Reade <br /> Page 2 <br /> The lateral and vertical extent of soil contamination in the area of the unknown fuel island should be <br /> addressed. It was documented that kerosene at 343 ppm, ethylbenzene at 220 parts per billion (ppb) and <br /> Xylene at 370 ppb exist in the sod at 22 feet below ground. <br /> Pursuant to Section 2652(d) of the Underground Storage Tank Regulations (California Code of Regulations, <br /> Title 23, Subchapter 16) a quarterly monitoring report shall be submitted to Public Health Services, <br /> Environmental Health Division and Central Valley Regional Water Quality Control Board (CVRWQCB)until <br /> the investigation and cleanup of the site is deemW adequate. All the items commented on in this letter <br /> Should be discussed in your quarterly report which should be submitted in January 1992. In addition the <br /> report is to show the: <br /> -status of investigation and cleanup activities including the results of all investigations <br /> completed to date; <br /> -proposed continuing or next phase of investigation, <br /> -method of cleanup proposed or implemented, schedules for the completion of the <br /> investigation of the site and remediation; <br /> -method and location of disposal of the released hazardous substance and any contaminated <br /> soil, groundwater or surface water, <br /> -manifest required for transport of hazardous substances; <br /> -monitoring well data including groundwater elevation, pH, conductivity, gradient, <br /> -analytical results of groundwater or soil sampling; and <br /> -site map showing the "zero line"of contamination, if known, and changes in the above <br /> measurements over the last quarter. <br /> If you have any questions please contact Michael Inf nma, RENS, of my staff at (209) 468-3454. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Olfic <br /> A. Cotulla, RENS, Program Manager <br /> Environmental Health Division <br /> LAC,/N:lb <br /> C. WHF <br /> P.O. Box 6729 <br /> Modesto, CA 95355-6729 <br /> C. T.P. Tiscornia, Jr. <br /> P.O.Box 1115 , <br /> Zephyr Cove, NV 89448 <br />