Ex. F <br />This calculation is in error, the -7 dB reassignment was not followed through. Although making the <br />correction does not change the end answer, the tables should be filled out consistently, for example: <br />To the West: Noise Control attenuation is lessoned from -17 to -10 dBA <br /> Noise Control, hood attenuation is raised from -10 to -20 dBA <br /> Building Factor attenuation is raised from -15 dBA to -22 dBA <br /> Resulting noise impact is reduced from 38 dBA to 28 dBA <br />To the South: Noise Control attenuation is lessoned from -17 to -10 dBA <br /> Noise Control hood attenuation is raised from -10 to -20 dBA <br />Building Factor attenuation is raised from 0 to -7 dBA <br />Resulting noise impact is reduced from 44 dBA to 34 dBA <br />In conclusion, the adjustment of -7dBA from Noise Control to the Building Factor columns is a <br />technical correction that does not change the bottom line. <br />However, the attenuation rating of the muffler was increased by 5 dB in this latest report without <br />explaining how or why the change is justified. The increased muffler attenuation rating slightly changed <br />the projected noise impact on property to the south from 46 to 45 dBA. However, it significantly <br />changed the projected noise impact on property to the south from 46 down to 42 dBA. <br />SSA changed the attenuation rating of a specified muffler without presenting any rational for doing so <br />and the effect of this change significantly changes the outcome of the predicted noise impact. <br />Accordingly, the predicted noise impact of 42 dBA to the west and 45 dBA to the south are equally <br />devoid of any rational justification and should be considered as such. <br />B) Environalysis Review <br />A discussion of the noise report by SSA is contained in two introductory and one summary paragraphs <br />that bracket 5 bullet specific comments. <br />1) Sound Wall <br />nd <br />In the 2 introductory paragraph of the section titled Project Impacts, re <br />wall as being part of the noise control program. <br />proposing that the generator and the cell phone equipment are to be enclosed inside equipment rooms <br />2) Muffler 30 to 35 dBA <br />nd <br />On the next page, the 2 bullet item on the list, comments on the muffler attenuation being raised from <br />30 to 35 dBA. Reviewer claims that an examination of the data from GT supports revising the <br />anticipated muffler attenuation from 30 to 35 dBA. <br />3 <br />