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City of Pleasanton—Hidden Canyon Residences and Preserve Draft EIR Biological Resources FirstCarbon Solutions 3.3-37 https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-03 Bio Resources.docx until the nest is abandoned by adult(s) and young for the year (approximately after September). MM BIO-1i Avoidance and Minimization Measures for Burrowing Owls To avoid potential impacts to active burrowing owl nests and adult owls, a qualified Biologist shall conduct pre-construction surveys for burrowing owls within the construction footprint and within 250 feet of the footprint no more than 7 days prior to project ground disturbance during the early part of breeding season (i.e., February 1 through April 30), and no more than 30 days prior to onset of ground disturbance during any other times of year. These surveys shall be conducted in a manner consistent with accepted burrowing owl survey protocols. Specific Avoidance and Minimization Measures for the burrowing owl are reported in Table 3-3 of the East Alameda County Conservation Strategy (EACCS). These measures are mandatory for mitigation and include: • If an active nest is identified near a proposed work area work will be conducted outside of the nesting season (March 15 to September 1). • If an active nest is identified near a proposed work area and work cannot be conducted outside of the nesting season, a no-activity zone shall be established by a qualified Biologist. The no-activity zone shall be large enough to avoid nest abandonment and will at a minimum, be 250-feet radius from the nest. • If the burrowing owls are present at the project site during the nonbreeding period, a qualified Biologist shall establish a no-activity zone of at least 150 feet. • If an effective no-activity zone cannot be established in either case, an experienced burrowing owl Biologist shall develop a site-specific plan (i.e., a plan that considers the type and extent of the proposed activity, the duration and timing of the activity, the sensitivity and habituation of the owls, and the dissimilarity of the proposed activity with background activities) to minimize the potential to affect the reproductive success of the owls. Compensation To ensure that mitigation habitat meets or exceeds the value of habitat lost to development, Focal Species Impact/Mitigation Scoring Sheets located in Appendix E of the EACCS were used as part of the assessment for suitability of mitigation lands for the burrowing owl. Standardized mitigation ratios for the burrowing owl, according to Table 3-10 in the EACCS, is 3:1 within the East Bay Hills Mitigation Area where the project and associated conservation land is sited. Level of Significance After Mitigation Less than significant impact.