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JUI,4-06-1996 12:35 CIWMB 916 255 4073 P.01 <br />STATE OF cA-MRNIA fttc Wlsor.6 Gowtmor <br />CALIFORNIA INTEGRATEQ MANAGEMENT BOARD <br />8800 Cal Cum= DeNe <br />Sa�mnto. Cahrorn�a 9S9* <br />u4mw <br />PMp4laeFaxNote 7671 <br />rFaX 4 <br />aj 41N- 0�13 <br />Mr_ Ed Padilla <br />San ioaq4'in County Solid Waste <br />Local lInforcement Agency <br />445 N- Sa"n Joaquin Street <br />P,O- Boxr388 <br />� <br />CA 95201-0389 <br />Stockton,..� 3 <br />RE: Fi` l Closure, and Postclosure Maintenance Plans, Cove Contractors Landfill, all <br />oft County, Facility No. 39 -AA -0010 <br />Dear Mr.Tadilla: <br />Califomia integrated Waste Management Board (CIWMB) staff has reviewed the <br />January 4� 1996 response to comments and revised grading plans for the subject Final Closure <br />and Postolosure Mainterianoe Plans (Final Plans). The response to comments was received on <br />February'13 and has been incorporated in Final Plans dated February 24, 1995. <br />r <br />-&eview was conducted conceming adequacy of the Final Plans in addressing the minimum <br />standardsfbr closure and postclosure of Title 14, California Code of Regulations (14 CCR), <br />f n su c o the <br />Iivision 7, Chapter 3, Aiticle 71. The Cove Contractors Landfill is ot bie t t <br />closure/p6stclosure plan and financial assurances rNuirements of 14 CCR Chapter 5, <br />Articles 1-4 and 3.5. <br />Approval' of the Final Plans by CIWMB will be recommended upon resolution of the <br />followint,: <br />L A: slope stability report is required in accordande with 14 CCR Section 17717 because <br />of thi' proposed grades and use of geomembTanes. The slope stabty report is also <br />n6cessary to resolve the third sentffnceof paragraph 2 of Section TI.I.6 (Slope <br />Siability) of the Filial Plans which States: ,Withoxit detailed information that could be <br />ohtain8d by drilling, sampling, and testing the soils behind the slope, only educated <br />s ositions can be made about the relative long-term stability of the slope. " As <br />OPP <br />r�quired in 14 CCR Sectian 17777(a), the operator shall ensure the integrity of final <br />sippes under both static and dynamic conditions. The Final Plans as prepared do not <br />adequately address compliance with this standard. in addition, applicable comments of <br />tye Regional Water Quality Control Board (RWQC)3) should also be addressed in the <br />stbpe stability report. <br />i <br />