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32 <br /> <br />from the identified trees or structures shall be brushed back or modified in the late <br />afternoon. This disturbance should cause any potential roosting bats to seek other <br />roosts during their nighttime foraging. The remainder of the refugia item can then <br />be further limbed or removed as needed on the second day as late in the afternoon <br />as feasible. If bats are found injured, or if bat mortality occurs during the course <br />of tree work, a qualified biologist shall record the species impacted, and the <br />number of individuals documented. <br />• Tree limbing, modification, removal, or work on structural refugia shall <br />not be performed under any of the following conditions: during any precipitation <br />events, when ambient temperatures are below 4.5 degrees Celsius, when <br />windspeeds exceed 11 miles per hour, and/or any other condition which may lead <br />to bats seeking refuge. <br />• If special-status bats are found utilizing a tree, structure, or equivalent for <br />roosting, the Bat Mitigation and Monitoring Plan shall include permanent <br />artificial roosting habitat installations that shall be adjacent to, and sufficient for, <br />the species observed and associated ecology thereof. Effective buffer zones for <br />the installation and monitoring of the artificial roosts shall be determined and <br />established by a qualified biologist. <br />• Erosion Control – Grading and excavation activities could expose soil to increased rates <br />of erosion during construction periods. During construction, runoff from the Property <br />could adversely affect aquatic life within the adjacent water features. Surface water <br />runoff could remove particles of fill or excavated soil from the site, or could erode soil <br />down-gradient, if the flow were not controlled. Deposition of eroded material in adjacent <br />water features could increase turbidity, thereby endangering aquatic life, and reducing <br />wildlife habitat. Implementation of appropriate mitigation measures would ensure that <br />impacts to aquatic organisms would be avoided or minimized. Mitigation measures may <br />include best management practices (BMP’s) such as hay bales, silt fencing, placement of <br />straw mulch and hydro seeding of exposed soils after construction as identified in the <br />Storm Water Pollution Prevention Plan (SWPPP).