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Based upon the Appendix C 1 of the Draft EIR, the existing roadway traffic <br /> volumes along East River Road during the nighttime hours is as little as 3 <br /> automobiles between the hours of 1:00 a.m. and 2:00 a.m. Making a <br /> comparison of potential for awakening of 92% (existing — 3 automobiles per 1-28 <br /> hour) vs. nearly a 100% (with the project — 1 haul truck every two minutes) Cont, <br /> does not seem to be a fair comparison; <br /> ► The introduction of haul trucks vs. automobiles is a completely different noise <br /> source. The frequency content (low rumble) of trucks vs. the tire-on- <br /> pavement higher frequency content of an automobile is distinctly different. <br /> If you or the county staff has questions,please contact me. <br /> Respectfully submitted, <br /> j.e_ brennan& associates, Inc. 1.29 <br /> Ti ennan <br /> President <br /> Member: Institute of Noise Control Engineering <br /> Fife:Comments on Draft FIR—V3—August lb <br /> 4 _. <br />