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Biological Resources Site Assessment Report Hana Japan Steak House Project Site, Pleasanton, California APN: 941-1710-101 Page 9 6.3 Crotch’s Bumble Bee Since there are small mammal burrows onsite and floral resources, preconstruction surveys for bumble bees should be conducted. The project proponent is responsible for ensuring that project activities do not result in take of Crotch’s bumble bee. CDFW recommends three surveys during Crotch’s bumble bee’s flight period (April through October for worker bees), with each survey ideally scheduled 2-4 weeks apart4, to determine presence/absence (details below). For all work proposed that may include ground disturbance or vegetation removal within the geographic range of Crotch’s bumble bee, Crotch’s bumble bee avoidance measures detailed below should be implemented to ensure that no Crotch’s bumble bee are taken during project implementation. All Crotch’s bumble bee measures may be revised as more information on the species becomes available. No more than 14 days prior to the commencement of construction activities during the colony active period (April – August), which is the period with the highest detection probability, the qualified biologist will survey for Crotch’s bumble bee. The survey will occur at least two hours after sunrise (when temperatures are > 60°F and < 90°F with no rain) or two hours before sunset. The survey area will include the project boundaries and a surrounding 100-foot buffer area. The survey duration will be appropriate to the size of the project site and buffer area based on the metric of a minimum of one person-hour of searching per three acres of suitable habitat; this will be an approximately 0.5 hour survey for an average-sized project site. The biologist leading the survey must be designated as a qualified biologist for bumble bees. Surveyors may not capture or handle bumble bees unless authorized specifically for Crotch’s bumble bee by CDFW. Bumble bees may only be netted, chilled, and photographed for identification purposes if the biologist is authorized by a Memorandum of Understanding (MOU) in accordance with Fish and Game Code 2081(a). This authorization does not include take caused by project-related activities. If the lead biologist does not have an MOU, identification techniques will be limited to photographs of bumblebees in flight or resting on floral resources. If any sign(s) of a bumble bee nest is observed, and if it cannot be established the species present is not Crotch’s bumble bee, then construction will not commence until CDFW provides further guidance, which may include an additional survey by a bumble bee expert, waiting until the colony active season ends, obtaining take authorization, or other actions. If at any time during preconstruction surveys a Crotch’s bumble bee is found, a qualified biologist/monitor will be onsite during all construction activities and that individual shall be approved by CDFW for bumble bee monitoring. During construction monitoring, the biologist shall scan for bumble bees using floral resources. If bumble bees are observed after construction commences, construction will be halted if bumble bees are in harm’s way. For example, if an undetected nest is present in the construction area, it is assumed that bumble bees will become visible if the nest is disturbed, and construction will be immediately halted. If construction is halted because bumble bees are in harm’s way, construction may only recommence after it has been established that the bees present are not Crotch’s bumble bees. If 4 CDFW (California Department of Fish and Wildlife). 2023. Survey considerations for California Endangered Species Act (CESA) candidate bumble bee species. June 6, 2023.