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Ifront residential units and 39 feet west of the Bristol Street <br />right -of -way. A chain link fence, gated for pedestrian access, <br />r exists at the right -of -way. This noise measurement is represen- <br />ttative of the noise level at 33 residences on Bristol Street <br />between Santa Clara Avenue and Seventeenth Street. <br />Measurement site 4 was taken on the Rancho Santiago Community <br />College Campus adjacent to the auditorium. The site was 70 feet <br />from the Bristol right -of -way. A three foot block wall at the <br />�j right -of -way provides some noise attenuation but allows complete <br />line of sight exposure to truck exhaust stacks. This block wall <br />is also broken directly in front of the measurement site to allow <br />for pedestrian access. The noise level measured at this site <br />also reflects volumes on Seventeenth Street adjacent to this <br />intersection. <br />Measurement site 5 was taken in the front yard of a midblock SFD <br />at 5 feet from the Bristol Street right -of -way. This front yard <br />area has full exposure to the roadway. The noise level at this <br />residence is expected to be representative of noise levels at 16 <br />l similar residences along Bristol Street in the project vicinity. <br />4 Measurement site 6 was selected at an SFD that is a "worst case" <br />receptor in this area. The site lies 3 feet from the Bristol <br />Street right -o£ -way at a point 80 feet south of Seventh Street. <br />1 The measurement was taken adjacent to the front porch. This <br />outdoor activity area has full exposure to Bristol Street. <br />Measurement site T was taken adjacent to a 4 -unit multifamily <br />attached dwelling at 114 Bristol Street. The residence lies at <br />the right -of -way and an outdoor activity area is only possible in <br />the side yard area. This area receives full street exposure from <br />Bristol and First Street since it is separated from First Street <br />by a vacant lot. The site was located 60 feet from the First <br />Street right -of -way. The intersection has a phased signal and <br />traffic queues in front of this residence. <br />Measurement site 8 was selected in the front yard of a single <br />family dwelling on the southeast corner of Bristol Street at <br />Raymar Avenue. The measurement was taken 11 feet from the <br />Bristol Street right -of -way adjacent to a front porch. This <br />residence is similar to eleven other houses in the project vici- <br />nity. <br />Measurement site 9 was taken in the rear yard of a corner house <br />at Richland Avenue and Bristol Street. The site was located at <br />an outdoor activity area on the patio in the rear yard which lies <br />adjacent to Bristol street. The site was 30 feet from the <br />Bristol Street right -of -way and 5 feet from the rear entrance. <br />The rear yard is separated from the roadway by a 5 -foot high <br />block wall. This noise level measurement was assumed to be repre- <br />sentative of sound levels in the vicinity that are currently <br />attenuated by a 5-foot block wall. <br />750468 <br />