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Mr. MichaelA <br /> Collins <br /> September 24, 1993 <br /> Page-2 <br /> operation of equipment and the placement of men. in- the base of the excavation as their <br /> reasons for Yecommendingthe use -of visqueen over clay.as a liner. In lieu of this <br /> recommendation; BC requests that the..backfillino procedures be amended to include a' <br /> visqueen 'liner in place of a clay liner.'' Kleinfelder alsorecommends 'the' placement of <br /> approximately 20 feet.of "free-draining 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,outlinirtg these.xecommendations <br /> is included as Attachment B.- <br /> BC <br /> :BC anticipates.beginning, the placement 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 /> 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 /> A r ` <br /> Sincerely, <br /> SAN JOAQUIN-COUNTY. <br /> PUBLIC HFALTH SERVICES <br /> BROWN'AND CALDWELL <br /> ENVIROOMENTA1 r:EALTH DIVISION <br /> ,✓/� K Q, SC:: 2009 'CCKTON, CA 95021 <br /> Pat Cullen <br /> Project Manager <br /> See Remarks', <br /> PC:TM:jm C <br /> e Remarks <br /> Attachments �: 4 <br /> cc: Tina Bauer, Brown and Caldwell <br /> . Todd Miller Brown an w <br /> d Caldwell , <br /> Approvzf z, .,:is only' to that <br /> which is snow... hevnon; but � <br /> does not authorize or approve any, omission <br /> or deviation of requirements of :State laws or <br /> local Ordinances. ° <br /> 1 <br /> ' <br /> l <br /> I' oarxuvseuelUvas'.n�eawicrr_i.wes <br /> QMS PUZ-3 .. . <br /> 13rom and Caldwell <br /> ��n�lLirf�'1t5 ' <br /> i <br />