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r r r I r r r r r r r r r r i I 1 r 2.Executive Summary TABLE 2-1 (CONTINUED) SUMMARY OF IMPACTS AND MITIGATION MEASURES Environmental Impact Mitigation Measures Level of Significance (Level of Significance Prior to Mitigation) After Mitigation tricolored blackbirds are nesting in the silage,the entire field shall not be harvested until the colony is no longer active. 4.9.2c Conditions in the Proposed Project area currently provide breeding habitat for Swainson's hawk and white-tailed kite.Site conditions will change over the 26-to 60-year life of the project,therefore,the following mitigation measures shall be implemented prior to implementation of any Phase of mining.For any Phase where ground- disturbing activities would commence during the raptor breeding season(March 15 through August 31),the applicant shall: (1) Comply with the SJMSCP.For Phases complying with the SJMSCP,no further mitigation is required,or (11) For Project Phases not complying with the SJMSCP, the applicant shall conduct pre-construction surveys for nesting raptors in suitable habitat within one-half mile(for Swainson's hawk)and 500 feet(for white- tailed kite)of the Phase boundaries.Surveys shall begin either at the beginning of the breeding season, or four weeks prior to beginning mining activities in the Phase,whichever is later.If nesting raptors are recorded within these buffers,the applicant shall not permit construction activities within these buffers except in consultation with CDFG. _ 4.9.2d Conditions at the project site currently provide low suitability habitat for burrowing owls.Site conditions will change over the 26-to 60-year life of the project; therefore the following mitigation measures shall be implemented prior to implementation of any Phase of mining: RMC Pacific Vernalis Quarry Mining and Reclamation Project 2-21 ESA/Project No 203015 Draft EnOummental Impact Report May 2006