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Dece~er 20~ 1993 <br /> <br />W.M. christner, Plant Superintendent <br />Canby Sand & Gravel <br />PO Box 269 <br />Canby, Oregon 97013 <br /> <br />SUBJ: Sand Filter Media Approval <br /> Canby Sand & Gravel <br /> <br />The sieve analysi~ by Carlson Testing, Inc. dated ~ecemb~ 17, <br />1993 of material from Canby Sand & Gravel is found to meet <br />minimum DEQ specifications for "medium sand" USed in the <br />construction sand filter systems. Material approval is granted <br />for a period of 90 days. <br /> <br />Your ooaparation in thi= matter i~ greatly appreciated. If you <br />have any questions or need further information, please feel <br />welcolne to contact our office. <br /> <br />BERNIE DUFF¥ - Soil goienti~t <br />Building Servi~e~ Division <br /> <br />/.ep <br /> <br />c: Soils Section <br /> <br />909 Ab~rnethy Moad · Oregon City, ORg?U45-1100 e (503) 655-8521 m FA)4 65g-3351 <br /> <br /> <br />