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City of Pleasanton—Hidden Canyon Residences and Preserve Biological Resources Draft EIR 3.3-34 FirstCarbon Solutions https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480016/EIR/3 - Draft EIR/21480016 Sec03-03 Bio Resources.docx • If unoccupied, the qualified Biologist will collapse these dens by hand in accordance with USFWS procedures. Exclusion zones will be implemented following USFWS procedures or the latest USFWS procedures available at the time. The radius of these zones will follow current standards or will be as follows: Potential Den–50 feet; Known Den–100 feet; Natal or Pupping Den–to be determined on a case-by-case basis in coordination with USFWS and CDFW. • Pipes will be capped and trenches will contain exit ramps to avoid direct mortality while construction areas is active. Compensation The project shall permanently protect 104.6 acres as open space, which is considered more than adequate to offset any loss of badger habitat. Additionally, 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 badger. Standardized mitigation ratios for the badger, 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 are sited. MM BIO-1f Mitigation Measures for Crotch’s Bumble Bee A qualified Biologist shall conduct pre-construction surveys with methodology approved by the California Department of Fish and Wildlife (CDFW) during the three stages of Crotch’s bumble bee flight period; once a positive identification is made, no further general surveys are necessary; at that point, intensive surveys would occur. The three stages of flight periods include: 1) queen flight after emergence is February–March; 2) highest detection time for nests is April–August; 3) queens solo flight is September–October when queens find a hibernation area. Surveys will be conducted in the two flight periods prior to the start of construction with two surveys occurring at least 3 weeks apart within each of those flight periods. These surveys will increase the likelihood this species and their underground nests are observed will they be present on the project site. Survey schedules are shown below: Start of Construction Date Required Survey Periods Dates of Survey Periods November–March 2 and 3 Two surveys April–August Two surveys September–October April–August 3 and 1 Two surveys September–October Two surveys February–March September–October 1 and 2 Two surveys February–March Two surveys April–August