Laserfiche WebLink
4 <br /> IT CORPORATION <br /> Mr. J. Kelly Williamson <br /> Kayo Oil Company <br /> April 17, 1985 <br /> Page 5 <br /> vent further introduction of hydrocarbons into the subsurface. The <br /> monitor wells should be periodically surveyed with Draeger tubes or <br /> other calibrated devices to assure that there are no new leaks. Natural <br /> biologic activity will eventually oxidize the contaminant. At the end <br /> of the tank' s useful life, when the tanks are replaced, the construction <br /> plan should include removal of any remaining contaminated soils. The <br /> estimated cost of the soils removal to a depth of 25 to 30 feet and <br /> disposal in a Class 1 disposal site is $167,000. The estimated cost of <br /> backfilling and installation of a new tank system is estimated at <br /> $139,000. <br /> We trust that this information is responsive to your needs at this <br /> time. if you have any further questions, please feel free to call me at <br /> our Martinez, California office, (415) 228-8400. <br />• Very truly yours, <br /> Robert M. Galbraith, R.G. 3881 <br /> Manager, Geotechnical Services <br /> RMG:jc <br /> 0047 <br /> Attachments <br />