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Y <br /> ' d3' <br /> Advanced <br /> GeoEnvironmental <br /> of'Noahei-n Calif wnia <br /> 05 August 1997 <br /> AGE-NIC Project No. 95-0103 <br /> Mr. Ismael Jaeobo <br /> Water Resources Control Board <br /> UINDER GROUND STORAGE- TANK CLEAN UP FUND <br /> 21014T Street, Suite 130 <br /> P.O. Box 944212 <br /> Sacramento, California 942=1-1-2120 <br /> Subject: Status of King Buck VINIC-6AG Soil Vapor Extraction -Unit <br /> CHAPIN BROS., INC. <br /> 1766 Monte Diablo venue, Stockton, California <br /> Dear Mr. Jacobo: <br /> The following is an update of the soil vapor extraction (SVE) unit provided to the above referenced <br /> site by the Under Ground Storage Tank Cleanup Fund (USTCF). Based upon our conversations with <br /> King-Buck Technology, the manufacturer, and observations at the site, we have the following <br /> comments: <br /> • The Kira-Buck/1-lasstech N,li\,IC-6AG catalytic oxidation-soil vapor extraction(SVE)system <br /> at the site has been experiencing poor and undependable operation. It is likely that one or <br /> more of the process control components are dama(led or,,worn-out past their life expectancy. <br /> • It is our tmdcrstanding that the extraction system was operated for approximately t,.yo years <br /> in the mid 11.90s and then was in stora�oze and inactive until April 1997. The unit was reported <br /> to have satisfactory operation during its initial mobilization. However, no information was <br /> available concerning the required lona term storage and maintenance of the unit between <br /> mobilizations. <br /> • Currently, the Tuthill pneumatic blower on the unit,used to extract soil vapor, has damaged <br /> internal seals. These damaged seals have caused lubricating oil to exit the blower and enter <br /> into the SVE burner. AGE has been in contact witll the manufacturer to determine the <br /> consequences of the blower seal failure. The introduction of oil into the SVE burner is out <br /> of the operating parameters of the unit and is contributing to the failure in operation of the <br /> SVE unit. <br /> • King-Buck recommends that the blower undergo service at an authorized factory service <br /> 1803 West March Lane,Suite A,Stockton,California 95207 <br /> Telephone(209)956-0264 FAX(209)956-0700 <br />