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THOMAS R. FLINN P.O.BOX 1810-1810 E.HAZELTON#MENUE <br /> r ` STOCKTON,CALIFORNIA 95201 <br /> DIRECTOR (209)468-3000 FAX(209)468-2999 <br /> www.co.san-joaquin.ca.us , <br /> THOMAS M.GAU �kA <br /> Y - <br /> DEPUTY DIRECTOR <br /> MANUEL SOLORIO vrnoringfbr YOU <br /> DEPUTY DIRECTOR `[ �j I f <br /> STEVEN WINKLER <br /> DEPUTY DIRECTOR <br /> BENTONANGOVE JUN <br /> 0 2��3 <br /> BUSINESS ADMINISTRATOR <br /> June 18, 2003 ENVIRONIVIENT HIFAl.Th <br /> Ms. Kim Schwab <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, California 95827 <br /> SUBJECT: PRECIPITATION AND DRAINAGE CONTROLS;NORTH COUNTY <br /> RECYCLING CENTER AND SANITARY LANDFILL <br /> Dear Ms. Schwab: <br /> Enclosed, please find the design of our Cross-Slope Berm for the North County Sanitary Landfill, <br /> which meets the performance standards of Title 27, Section 20365(c). This design provides a factor <br /> of safety of 3.0 at the point of greatest flow rate (see Worksheet No. 3). <br /> The actual construction will incorporate the existing berm, the survey of which is scheduled for late <br /> June. Location and number of downdrains will be selected to provide a factor of safety of not less <br /> than 3.0 using the existing berm. <br /> If you have any questions, please call me at (209)468-3066. <br /> Sincerely, <br /> �u"J�7 <br /> W. MICHAEL CARROLL, PE <br /> Senior Civil Engineer <br /> MC:NZ:kf <br /> NMNorth County\KSchwab02-I3ermDesign.doc <br /> c: Robert McClellon, Environmental Health Department <br /> Enclosure <br /> LA 11880C <br />