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OCLACKAMAS <br /> <br />December 20, 1993 <br /> <br />W.H. Christner, Plant superintendent <br />Canby Sand & Gravel <br />PO pox ~69 <br />Canby, Oregon 97013 <br /> <br />SUBJ: <br /> <br />sand Filter Media Approval <br />canby Sand & Gravel <br /> <br />1993 of material f~om Canby sane & Gravel i~ found to meet <br />minimum DEQ speoifications for "medium sanS" USed in the <br />construction sand filter zy=tems. Material a~proval is gra~ted <br />for a period of 90 days. <br /> <br />You~ cooperation in this matt~ im greatly appreciated. If you <br />have any questions or need f~rther information, please feel <br />welcome to contact our office. <br /> <br />BERNIE PUPPY - Soll <br />Building ~ez~,ioe~ Division <br /> <br />/ep <br /> <br />c: Soils Section <br /> <br />g09 Ahc~rn.~hy ~4oad ~, Oregon City, OR gT(J45-1100 ~ {503) $55-8.G21 · FAX G50-3351 <br /> <br /> <br />