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P <br /> QVN <br /> a y < THOMAS R. FLINN ' P O.BOX 181 1 ELTON AVENUE <br /> DIRECTOR `v�" o t'"` �(�_��({r� r?� �Q�INIA95201 <br /> �q P• J ^r09). flQC}�i�$AX(209)468-2999 <br /> /FOp� wwW. o.san-joaquin.ca.us <br /> THOMAS M.GAU <br /> DEPUTY DIRECTOR is ;_ 03 MAY 20 Mf`Y 1 9: 34 <br /> MANUEL SOLORIO Working for YOU <br /> DEPUTY DIRECTOR <br /> STEVEN WINKLER � <br /> DEPUTY DIRECTOR <br /> BENTON ANGOVE May 16, 2003 <br /> BUSINESS ADMINISTRATOR I y Pl <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: REVISED CONSTRUCTION QUALITY ASSURANCE MANUAL, <br /> FOOTHILL SANITARY LANDFILL AND NORTH COUNTY RECYCLING <br /> CENTER AND SANITARY LANDFILL MODULES <br /> Dear Ms. Schwab: C'pi) ! <br /> Enclosed is a copy of the Quality Assurance Manual for Module Construction for Module 1 at <br /> the Foothill Sanitary Landfill and Module 4 at the North County Recycling Center and Sanitary <br /> Landfill. As discussed, this revision includes the following aspects of construction not addressed <br /> in the previous version: <br /> • The application of a one-foot thick"foundation"layer beneath the geomembrane. <br /> • Use of crushed rock and cushion geotextile for the LCRS drainage layer in lieu of <br /> subrounded rock. <br /> We understand that the use of crushed rock has not been approved as yet. Items related to the <br /> use of crushed rock are included if crushed rock is approved at a later date. Until approval, <br /> crushed rock will not be used. <br /> This revision also incorporates comments by Vector Engineering,however, Vector did not <br /> suggest significant revisions. <br /> We anticipate giving Notice to Proceed to the Contractor in the first week of June. If you have <br /> any questions,please call me at (209)468-3066. <br /> Sincerely, <br /> W. MICHAEL CARROLL, PE <br /> Senior Civil Engineer <br /> Enclosure <br /> MC:NZ:sc <br /> N:\TwoModules\RWQCB\KSshwabl9-CQAManual.wpd <br /> c: Robert McClellon, Environmental Health Department,w/o Enclosure <br /> LA 31610 <br />