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ROLL CALL VOTE: AYES: Commissioners Blank, Narum, O'Connor, Olson, and Pearce. NOES: None ABSTAIN: None RECUSED: None. ABSENT: Commissioner Fox. Resolution No. PC-2008-52 recommending approval to the City Council of the Draft Specific Plan Amendment, as amended, was entered and adopted as motioned. Commissioner O'Connor referred to the last sentence of paragraph 10 on page 32: "declare all residential structures within CLC meet single-event interior noise of 50 dBa." He inquired what that contemplated the exterior single-event noise level to be. Ms. Giffin replied that within the EIR, there are contour lines showing what the noise levels are expected to be and that it is approximately 60 dBa for most of the site. She noted that for single event, it is probably closer to use an L-max calculation which this is using, and probably closer to about 80 dBa for a single event, such as an airplane overpassing. Commissioner O'Connor stated that he had just read in the newspaper that a single-noise event jet noise in Livermore can reach as high as 90 dBa and questioned the accuracy of the data. Ms. Giffin replied that several studies have been done and that one recently revealed lower numbers than what is included in the Draft EIR. She indicated that there is a table in the EIR with this information, as well. Commissioner O'Connor expressed concerned regarding how the interior could be held to 50 dBa if the exterior single-event noise can get up as high as 90 dBa or higher. Ms. Giffin replied that there are different measurements and that the study done did not go up to 90 dba, but 89.4 dBa. She noted that on page 3.7-11, the noise maximum the City of Pleasanton uses is L-max for single-event noise and up to 80.8 dBa for jets. She indicated that bringing it down to 50 dba is doable. Chair Blank indicated that the final vote is for the zoning and pre-zoning. Commissioner Pearce moved to recommend approval to the City Council of the PUD Rezoning and Pre-Zoning for the Staples Ranch project. Commissioner Narum seconded the motion. EXCERPTS: PLANNING COMMISSION MINUTES, October 22, 2008 Page 11 of 12