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<br /> <br /> <br />Memorandum <br />February 26, 2025 <br />Page 13 <br />21202-23 North County Landfill_Noise DRAFT <br />Table 6 Existing and Projected Traffic Noise Levels along Haul Route <br />Road Segment <br />Traffic Noise Levels (dBA Ldn at 50 feet from centerline1) <br />Existing <br />Existing plus <br />Project <br />Estimated <br />Increase Cumulative <br />Cumulative <br />plus Project <br />Estimated <br />Increase <br />East Harney <br />Lane <br />West of SR-88 66.2 66.5 0.3 67.8 68.0 0.2 <br />Between SR-88 and Jack Tone Road 66.4 67.3 0.9 67.3 68.0 0.7 <br />Between Jack Tone Road and Landfill Access <br />Road 65.8 66.8 1.0 66.4 67.2 0.8 <br />Between Landfill Entrance and Clements Road 62.0 62.3 0.3 63.1 63.3 0.2 <br />East of Clements Road 53.6 53.6 0 53.6 53.6 0 <br />SR-88 North of East Harney Lane 69.8 69.8 0 72.1 72.1 0 <br />South of East Harney Lane 69.7 70.0 0.3 71.8 71.9 0.1 <br />Landfill <br />Access Road South of East Harney Lane 57.4 59.4 2.0 57.4 59.4 2.0 <br />Clements <br />Road <br />North of East Harney Lane 63.7 63.8 0.1 66.5 66.5 0 <br />South of East Harney Lane 63.5 63.7 0.2 66.4 66.5 0.1 <br />Thresholds 65 65 3 65 65 3 <br />Exceed Both Thresholds? -- -- No -- -- No <br />Bold values indicate exceedance of applicable threshold. <br />1 The noise levels reported in Table 6 are AM peak hour Leq levels, but were presented as Ldn levels for comparison with the San Joaquin County’s noise <br />standard of 65-dBA Ldn at noise-sensitive land uses for transportation sources. Generally, during the peak traffic hour under normal traffic conditions, Ldn is <br />within plus or minus 2 dBA of the Leq (Caltrans, 2013). <br />Sources: See Attachment A