5.1. PCSR 08-14-2007 - Laserfiche WebLink

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Sherburne County PLANNING 8~ ZONING ADMINISTRATION August 1, 2007 Mike Caron PO Box 1480 Maple Grove, MN 55311 Dear Mr. Cazon, 13880 Highway 10 Elk River, MN 55330 (763} 241-2900 • (800} 438-0578 Fax ~ (7631 241-2910 In response to your request for an on-site inspection and a review of the trees along Proctor Road in Section 21, T33, R26 in Elk River, I've summarized my findings and recommendations below, based on our July 31 on-site meeting. As you had arranged, a line was staked back from the road to show where the desired buffer of trees and vegetation would be preserved. Per the objectives stated, any tree within than buffer area would want to be left in good condition without incurring any disturbance/damage from upcoming excavation, grading, oak wilt, tree removal, etc. behind the buffer line. With this in mind, on July 31 S~, I flagged an orange ribbon line delineating where disturbance should be avoided to ensure that root systems from trees inside the buffer area be protected. Much of this flagged line is just beyond the staked line. During my inspection, I also looked for potential oak wilt infection centers that are active. One site was found that appears to be active oak wilt. It is located on the southern most end of the woods and on the western side of the wood line, along the field. If oak wilt suppression work involving vibratory plowing is deemed necessary (per your arrangements with the City), I've enclosed a list of consultants you can contact to obtain a proposal for doing this work. Regarding the orange flagged Line, it would be recommended that any tree removal work or grading work near this line be done during the fall or winter months to avoid starting new oak wilt. Any work during the April, May, June, or early July period would not be recommended near this buffer line. Due to the nature of northern pin oak and white oak being more sensitive to root disturbances than most other tree species and that much of this forest was comprised of oak trees, the area was flagged to reflect this sensitivity and to reflect the larger driplines of some of the mature trees inside the buffer area. If you have any further questions, please let me know. Thank you. Respectfully ~ Tim Edgeton Forest and Parks Coordinator Sherburne County