11 ATTACHMENT 04 - Laserfiche WebLink

A. Exterior Noise Exposures and Noise Levels • The existing exterior noise exposure in the most impacted planned rear and side vanes closest to Stanley Boulevard (35 ft_ from the roadway centerline) is 63 dB DNL_ Under future traffic conditions, the noise exposure is expected to increase to 66 dB DNL. Thus, the noise exposures till be up to 6 dB in excess of the City of Pleasanton Noise Element standards The future 60 dB DNL noise contour wiII be 86 ft. from the centerline of the road. • The existing exterior noise exposure at the most impacted planned building setback From Stanley Boulevard (45 It. host the roadway centerline', is 62 dR DNL Cider future traffic conditions, the noise exposure is expected to increase to 65 dB DNL . • The existing exterior noise exposure at the most impacted planned rear and s de yards and at the planned building setback closest to the UPRRCACF tracks 150-57 Ii. Cron the track centerline) is up to 76 dB DNA. Thus. the noise exposures are up to 6 dB in excess of the Citw o7 Pleasanton Noise Element standards. The 70 dB DNL noise contour is 135 11. front the tracks. • The Lax values at the most impacted planned building setback from the CPRR/ACE tracks ranged from 77 to 91 dBA during train passb}e. • Noise from Amador Valley High School marching band practice/sports events is noticeable at the site. Band sound levels were measured at 44-50 dBA and P.A. announcements were measured to be 45-s2 d13A.