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PUBLfell,EEALTH SR ICES aAa��N, <br /> �- <br /> SAN JOAQUIN COUNTY <br /> JOG1 KHANNA&f.D.,h1.P.H. <br /> Htalrh Officer 'tea <br /> Y ! P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton;California 95201 4�'F o'a� <br /> (209) 46&3400 <br /> OCT 15 199 <br /> ANN CERNEY <br /> DIAMOND LUMBER <br /> 2121 SAN ,'JACINTO TOWER SUITE 1060 <br /> DALLAS TX 75201 <br /> RE: Diamond Lumber IN REPLY REFER TO SITE CODE: 2292' <br /> 224iV1. Main <br /> Lodi, CA <br /> San Joaquin County Public Health Services, Environmental Health <br /> reviewed the "Environmental Site:Assessment <br /> Division ' (PHS/EHD) hasii <br /> and Structure Inspection" report prepared by Blymyer; Engineers <br /> dated September 15, 1989, the J.H. Kleinfelder and Associates <br /> reports dated August 13, 1985 and March� 7, 1985, sample results <br /> from Canonie ,Engineers, and other information in our Underground <br /> Storage Tank file for this site. The Blymyer Engineers -report was <br /> a summary of their review of the Kleinfelder= reports, no site work <br /> was performed in 1989.'y <br /> An inspection. report dated February 14, 1985:., completed;by. PHS/EHD <br /> staff documented that a 500 gallon gasoline tank removed from the <br /> site had.,a lk" by 1," !chole in the bottom of it. The former tank <br /> location :i was excavated to thirteen (13) feet ' and gasoline <br /> contaminated soil was noted. <br /> On February 19, 1985, Kleinfelder drilled a boring adjacent '�to the <br /> former tank excavation'l (pit) to a maximum depth of twenty=one (21)4 <br /> ; <br /> feet. A "soil sample;: taken at fifteen+ (15) feet below .ground <br /> surface was analyzed by Canonie Engineers: Results evidenced seven <br /> (7) parts ;`per million (ppm) as all other peaks quantitated as <br /> benzene. On February 27, 1985, Kleinfelder drilled a second '-boring <br /> located in the former tank pit. Gasoline odor was noted at " <br /> thirteen , (13) feet andlEseventeen (17) festt <br /> . Soil samples taken a <br /> seventeen i(17) feet and nineteen (19) feet below ground surface <br /> were anaiyzed by Canorile Engineers. Thea- sample results .were non- <br /> detect at a detection !limit of one (1) ppm: The detection limit <br /> recommended for use today is .005 ppm. Sandy soil was reported to <br /> exist to a depth of 11eighteen (18) feet below ground surface.` <br /> Contaminants can migrate easily in sandy soil so PHS/EHD ''is not <br /> confident . that contamination does not exist given`; the high <br /> detection limit used at the time. <br /> on March'120; 1985, Kleinfelder placed a temporary Monitoring well <br /> south ofthe tank pit. , PHS/EHD has no record on the construction <br /> of this well or a log °of the boring. From the Canonie 'Engineers <br /> A Divif cion of San Joaquin County Hcakh Carr Scrvires <br />