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_ J »_G� (:�C❑ y <br /> Mr. Michael Collins <br /> September 24, 1993 <br /> Page 2 <br /> t <br /> o ration of i <br /> pe eq�tiprnent and the placement,of men, in-the base-of' the excavation as their <br /> reasons for recommending the use )of vi ueen over cla :. I <br /> sq y as a liner. In lieu' of this <br /> recommendation; BC, requests that the.;backfilling procedures be amended to include a <br /> visqueen Ainer in place of a clay liner- Kleinfelder also recommends 'the' placement' of l <br /> approximately 20 feet,of "free-drainin <br /> g gravel on top of the liner, which is consistent with <br /> the County's request for at least 5 feet of clean imported fill to be placed on top of the liner. <br /> A-copy of Kleinfelder's letter to G. R. Kause Construction.outlining these recommendations <br /> is included as'Attachment B.- <br /> BC <br /> :BC anticipates beginning,.the placemenE .of the visqueen liner-and the backfill as early as <br /> Monday, September 27, 1993. Your cooperation in quickly;expediting the approval of this <br /> R <br /> request would be greatly appreciated:. If you.have any questions or concerns regarding;this, <br /> request, please contact me'.at your earliest convenience at (510) 210-2278: <br /> . 4 <br /> Sincerely, <br /> SAN OAQUiN COUNTY <br /> BROWN AND CAI-DWELL PUBLIC HFAI.TB SERVICES ' <br /> ENVIRONIVIE'NTAa P.EAE_TH DIVISION <br /> P. Q. SC : %009 . : CK fN CA 95021 <br /> .420 <br /> Pat Cullen <br /> Project Manager <br /> 47 �`:•-- -°ms's: See Remarks <br /> PC:TM:jm , <br /> _-,e Remarks <br /> Attachments Rz <br /> cc: Tina Bauer,Brown and Caldwell <br /> #-* Todd Miller, Brown.aitd Caldwell <br /> i ApiOv2j only` to that <br /> L which is snow.:: e:i iie.;eon but <br /> does not .authorize or approve .any omission <br /> or deviation of requirements of State laws nr <br /> local Ordinances. <br /> QM S-PM25 . <br /> Brum and Caldwell <br /> �orkc U(ants <br />