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Draft Supplemental Environmental Impact Report Page IV.0-8 ' Forward Inc.Landfill 2018 Expansion Project Location Time Period Ldn&Leg (dBA) Noise Sources ' 56 feet east from up to 51 dB. Nearby sprinkler was center of Austin Rd. up to 47 dB. Site 4:Austin Road June 5, 12:00 24-hour Ldn's= Unattended noise measurements do ' at Lynch Rd.,59 a.m. through 67,68,68 not specifically identify noise feet east from June 7, 11:59 sources. center of Austin Rd. p.m.,2018 Hourly average Tuesday- Leq's ranged Thursday from: 72-hour 49-66 measurement ' Site 4:Austin Road June 4,2018 5-minute results: Birds chirping and heavy-duty at Lynch Rd.,59 12:15—12:25 Leq's=58, 64 trucks and other traffic along Austin ' feet east from p.m. L90's=41,41 Rd. Maximum noise levels of 80 dB center of Austin Rd. were from heavy truck pass-bys. Background noise was less than 41.5 dB. ' Site 5:Northeast June 4,2018 5-minute results: Many heavy trucks and autos. corner of Austin 2:48—2:58 p.m. Leq's=72, 71 Trucks braking at intersection ' Rd. at Arch Rd., L90's=61, 60 resulted in Lmax of 88 dB. Trucks near the entrance of moving at slow speeds were 68-79 BNSF Intermodal. dB. Autos were 56-81 dB. 50 feet east from ' center of Austin Rd. Site 6: June 4, 2018 5-minute results: Only two vehicles on Newcastle ' Approximately 350 2:23—2:33 p.m. Leq's=55,52 Road during measurements(70 dB, feet southeast of L90's=47,45 58 dB). Airplanes were up to 62 dB. 7833 Newcastle Rd., Wind was up to 57 dB. Beeping and 60 feet east from landfill trucks was less than 43 ' from the center of dB. Could hear some traffic on Newcastle Rd. Hwy 99. Between the residence and the ' landfill. The revised project includes the development of expansion areas within the permitted landfill ' boundary,but does not include the previously proposed horizontal expansion onto the adjoining 184- acre Brocchini property. Eliminating the 184-acre expansion area would reduce construction noise ' impacts by eliminating noisy construction activities on this property compared with the 2013 project. Construction noise impacts of the revised project would remain less than significant. Impact C.2. Truck Traffic Noise Impacts (Revises 2013 FEIR Impact C.2.) ' The 2013 EIR determined that noise level increases attributed to the project would exceed the ' significance criteria at residential properties along each of the five roadway segments throughout the project area where residences would be most affected by the project. The revised project would result I