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BMP: TREE PROTECTION <br />1. METHODS: Trees and other native vegetation must be protected <br />against construction damage. Protect vegetation by following these <br />guidelines: <br />A. Do not nail boards, filter fabric, or anything else to trees. <br />B. Grading, paving, or placing fill within a tree's drip line are not <br />allowed except when all of the following are met: <br />? encroachment is only on one side of tree; <br />? encroachment is no closer than 5' from the trunk or no more than 1/2 the <br />distance between the drip line and the trunk; <br />? a drainage system that allows air and water to circulate through the <br />root zone is placed under all fills over 1' deep within the drip line; and <br />? care is taken not to cut tree roots unnecessarily or to compact the soil <br />around them. <br />C. Remove low tree limbs that are likely to be broken by construction <br />activities. Cut the limb flush to the trunk or main branch. Paint cut or <br />damaged limbs, trunks or roots with a good grade of tree paint. <br />D. When planting new vegetation, water frequently and protect from <br />adverse weather conditions. <br />2. MATERIALS: None required. <br />3. MAINTENANCE TIPS: Water as <br />required and wrap if necessary. <br />4. TEMPORARY OR PERMANENT <br />USE: Tree protection can be a <br />temporary or permanent BMP. <br /> <br />IMF <br />low <br />6 <br />