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r <br /> Califofk IntegratedWaste Manager ti -B- oard,.- <br /> _ <br /> .,. . Dan Eaton,Chairman _ <br /> 8800 Cal Center Drives Sacramento California 95826 w(916)255.2200 <br /> .... <br /> www.ciwm .ca.gov <br /> ~Gray Davis <br /> Winston H.Hickox Governor <br /> 'ecretaryjor <br /> 'nvironmental <br /> 'rotection <br /> March 1, 2000 <br /> B.Tom Boardman,P.E. MAR 0 2 <br /> Project Manager 2000 <br /> GeoSyntec Consultants . r%it F C r J L.T <br /> 1500 Newell Avenue, Suite 800 = F IT f: RVI' ; <br /> Walnut Creek,CA 94596 <br /> SUBJECT: PARTIAL FINAL CLOSURE AND POST-CLOSURE INTENANCE PLAN(PFCPC )FOR <br /> FoRwARD INC.,LANDFILL,WASTE MANAGEMENT UNIT B (WB),SAN JOAQUIN <br /> COUNTY,CALIFo -SWIS#39-AA-0020 <br /> Dear Mr.Boardman: <br /> The California Integrated Waste Management Board(Board)staff has received and reviewed the Partial <br /> Final Closure and Post-Closure Maintenance Plan(Plan)for the Forward Inc.,Landfill,Waste <br /> Management Unit B (WMU B),prepared by GeoSyntec Consultants and dated December 9, 1999. The <br /> Plan is prepared in accordance with Title 27 of the California Code of Regulations (27 CCR) as well as <br /> Title 40 of the Code of Federal Regulations(40 CFR). Pertinent Sections in both 27 CCR and 40 CFR <br /> specify contents for such Plans. <br /> The purpose of our review is to determine the adequacy of the content of the material presented in this <br /> Plan and provide you with our comments and concerns. As such, we have completed our review of the <br /> Plan and have prepared the following comments: <br /> Page 1-1,Sectionl.l—`Background" <br /> ➢ When did"WMU B"become active and waste placement on this Unit begin after the period when it <br /> was temporarily inactive? <br /> ➢ Please include copies of the approval letters by the agencies that have approved the Preliminary Plan. <br /> Paye 2-3,Section 2.2.3—"Landfill Gas onito •n and Control" <br /> ➢ The latest round of gas sampling should have been performed sometime in the latter part of 1999 <br /> instead of 1998. Table 2-10 has not been included in our Plan. Please provide this table. <br /> Page 3-2,Section 3.3—"Estimated Closure Date" <br /> Include volume calculations along with any assumptions made to arrive at the remaining capacity. <br /> ➢ Please provide the in-place,compacted unit weight density of the waste, since this is the true measure <br /> to use in volume calculations to determine time to reach capacity. <br /> California Environmental Protection Agency <br /> Printed on Recycled Paper <br />