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Jervnmm nc+aivi4mL vvr'a cn %AUM{..1 I I %,viv i nvL. <br />TRAL,VALLEY REGION <br />3443 ROUTIER ROAD • `� <br />S MENTO. CA 85827.3098 <br />27 .July 1988 <br />Mr.. Tom Horton. <br />Solid Waste Manager <br />San Joaquin County 1 <br />Post Office Box -1810 <br />Stockton, CA 9520.1 <br />SWAT. REPORT, CORRAL HOLLOW SANITARY LANDFILL, SAN JOAQUIN COUNTY (CASE NO. 1896) <br />We have reviewed the SWAT Report, prepared R � p p d by Emcon, for Corr -al Hollow Sanitary <br />Landfill. Our comments are as follows: <br />1.. The determination of the aquifer permeabilities are ggod, but the <br />permeability of the soils immediately underlying the site is not addressed. <br />2. ,The Corral Hollow Sanitary Landfill is still a Class II -2 landfill. We <br />hope to reclassify' the :site in the near future. At that time, it may be <br />reclassified as a Class III Landfill. <br />3. Surface ­water sampling should be done whenur_fa <br />.S ce water flows occur. <br />However, it is not necessary to do this s4mprling and analysis to complete <br />the SWAT. <br />4. Due to the contamination of the .blanks and other samples, several analyses <br />need to be re-run.However,-the existing analyses do not indicate that <br />there should be any concern about leakage of 'hazardous wastes'. <br />Therefore, the re -testing need not be done to complete the SWAT. <br />Re. -testing may be'aCtompltshed after the next ,rainy season when there is a <br />greater chance for the formatton of. leachate. <br />The SWAT report for Corral Hollow Sanitary Landfill is ap r v . The comments <br />above are'for your information and use. If you have any questions regarding <br />this matter; please call'me at (916) 36.1-5737. <br />,ZFIFF!�;X <br />. TUCKER <br />Project Engireer <br />JKT:j//j <br />cc: ✓Mr. Al Olsen, San Joaquin Local Health District, Stockton <br />Mr. Michael McCluskey, Acting Director of Public Works, City of Tracy <br />