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<br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration xii <br />a. When feasible, project activities shall be sited at least 50 meters from elderberry <br />shrubs with stem diameter greater than 1-inch. <br /> <br />b. If activities must be conducted within 50 meters of an elderberry shrub, the following <br />measures will apply: <br /> <br />i. activities will be conducted outside of VELB flight season (March 1-July 31); <br />ii. a biological monitor will be present to monitor all project activities at the site; <br />iii. all ground disturbing activities (boring, CPT, or vegetation removal) will be <br />located at least 6 meters from the dripline of the elderberry shrub; and high <br />visibility fencing or flagging will be installed to delineate the 6-meter avoidance <br />buffer. <br /> <br />MM BIO-14: General Fish <br />Over-water activities will be limited to only being conducted during the fish work window <br />(August 1 – October 31) to avoid impacts to sensitive fish species that have the <br />potential to occur in the Study Area. <br /> <br />MM BIO-15: Special-Status Bats <br />To minimize and avoid the potential impacts to special-status bats that may occur within <br />the project area, the following general measures will be implemented: <br />a. Pre-activity roosting special-status bat surveys and an evaluation of roosting habitat <br />suitability for bats will be conducted by a qualified biologist familiar with the species <br />that could potentially occur within the Impact Area. The qualified biologist should, at <br />a minimum have experience conducting roosting bat surveys and be able to identify <br />the presence of guano and urine stains. <br /> <br />b. Any identified roosts of special-status bats will be avoided, and a buffer of up to 100 <br />feet will be established based on-site conditions and at the discretion of the biologist, <br />to ensure that the roosting bats are not disturbed. If a nursery colony is identified, <br />additional measures may be required including a larger buffer, to ensure no <br />disturbance. Such additional measures will be determined and monitored by a <br />qualified biologist. <br /> <br />MM BIO-16: American Badger <br />To minimize and avoid the potential impacts to American Badger that may occur within <br />the Study Area, the following measures will be implemented: <br />a. A qualified biologist shall conduct pre-activity surveys for American badger and dens <br />in suitable habitat within 48 hours prior to the start of soil investigation activities. If <br />there is a lapse in soil investigation activities of two weeks or greater the area shall <br />be resurveyed within 24 hours prior to recommencement of work. Potential American