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Vies <br />The <br />rofessional <br />Co V <br />A Division of Arboricultural Specialties, Inc. <br />June 28, 2002 <br />Bob Mullen <br />City of Redwood City <br />1400 Broadway <br />Redwood City, CA 94063 -0319 <br />Dear Bob, <br />We've talked about using a tree injection system in lieu of spraying your trees. The cost would <br />be $6.00 per injection calculated on the diameter of each tree. The injections should be spaced <br />approximately eight (8) inches apart around the tree. For example: <br />A 12 inch diameter tree would need 5 injections (2x3.14x6)/8 = 4.71 5 @ $6.00 = $30.00 <br />— A 24 inch diameter tree would need 10 injections (2x3.14x12)/8 = 9.42 10 @ $6.00 = $60.00 <br />Let me know if you are interested in starting this process. <br />rely, <br />Bri Fen <br />PC) Bo, ` C.4 94702, 15101 549 - 1954 Fax (510) 549 -3965 • ISA Cenified Arborisi #0938, Contractors Ucenx #676952 <br />