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Daousign Envelope ID:6B713A057-B56441EB-9812-293130OAB9D80 PA-2600014 (C) March 24, 2026 Page 9 maintenance activities and level of disturbance until young have fledged,are feeding independently and are no longer dependent on the nest. Onsite monitoring shall be conducted by a Qualified Biologist familiar with the species,as buffers may need to be increased based on the birds'tolerance level to the disturbance as activities change and as the birds'transition through different stages of the nesting cycle. The Qualified Biologist could modify the nest buffer with written approval from San Joaquin County in coordination with CDFW. Tricolored Blackbird The Project site is located within 5 miles from a known TRBL occurrence on CNDDB and contains suitable foraging habitat in the vicinity. Construction activities could result in significant impacts to TRBL through noise, fugitive dust,human presence,and/or night lighting. Noise from road use,generators, and other equipment may disrupt TRBL mating calls or songs which could impact their reproductive success(Patriceili and Blickley 2006, Halfwerk at al.2011). Bayne at al. (2008)found that songbird abundance and density was significantly reduced In areas with high levels of noise. Projects with potential Impacts to TRBL are encouraged to avoid take or to obtain an ITP from. CDFW recommends that the environmental document includes the following TRBL measures prior to initiation of construction activities; Preconstruction Assessment. Prior to the commencement of Project activities,a Qualified Biologist shall conduct a field investigation to determine if existing or potential nesting or foraging sites are present within the Project Area and adjacent areas within 0.5 miles of the Project Area.The preconstruction assessment shall be completed during the breeding season (March 1 through September 16)prior to ground-disturbing activities.Adjacent parcels under different land ownership will be surveyed only if access is granted or if the parcels are visible from authorized areas. Project Proponent shall map all existing or potential nesting or foraging sites and provide these maps to San Joaquin County. Nesting sites, including both currently occupied nesting sites and sites known to have been occupied within the last five years,shall be noted on submitted maps. If suitable nesting or foraging habitat is determined to be present onsite or adjacent to the Project site during the preconstruction assessment,the Project Proponent shall conduct TRBL preconstruction surveys prior to initiating any Project related work. Preconstruction Surveys. Project Proponent shall conduct a preconstruction survey to determine if active nests are present within the Project Area or within 500 feet of a project- related activity if existing or potential nest sites were found during surveys and Project activities will occur during the breeding season(March 1 through September 15). The Qualified Biologist shall conduct preconstruction surveys within 30 days of the commencement of Project activities and again within 3 days of ground-disturbing Project activities within the proposed Project Area and within 500 feet of the Project Area to determine the presence of nesting TRBL. The surveys should be separated by at least three weeks. Preconstruction surveys shall be conducted during the breeding season (March 1 through September 15). Surveys conducted in February(to meet preconstruction