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the body and is more harmful. He noted on the assessment of the haul road, it states that <br />39 tons of uncontrolled PM 10 dust would be created on the haul road per year. He added <br />.5 tons of PM 2.5 would be created on the haul road each year. He didn’t think they <br />could crush thousands of pounds of rock without creating dust. He said the majority of <br />the dust is invisible. He wanted to raise public awareness about the health consequences <br />of rock dust. He stated that rock dust is a significant health hazard. He thought there <br />would be increased sinus and respiratory infections and there could be the development <br />of emphysema. He didn’t think keeping the material moist would completely eliminate <br />all the small particle rock dust that could cause health problems. <br /> <br /> Art Noxon, Eugene, stated he is a state licensed acoustic engineer in Eugene. He <br />distributed information on the summary of his work. He said he was trying to clarify the <br />work of the consultant for Delta, to straighten out their work and be clear about the <br />calculations. (Copy in file). He said that DSA was not clear about the methodology, they <br />made gross errors in the calculations and assumed the quietest noise source to be the <br />source, instead of the loudest. He asserted they confuse and create mathematical models <br />that don’t exist and have no foundation in the laws of physics. With regard to the memo <br />by DSA, that addresses a new regime of noise sources that now have to be DEQ <br />compliant, the noise from the rock will be regulated by DEQ. He noted there is as much <br />regulation on the trenching rock as there is on the pit rock. He reported that DSA <br />submitted a two and a quarter page memo that says nothing and they expect that to equal <br />three quarters to one inch material they had submitted for the pit mining operation. He <br />noted the equipment they are using for the trenching is the same equipment they are using <br />in the pit. He said there is zero support for information provided from an engineer’s <br />viewpoint about how the trenching operation has become DEQ compliant. He said they <br />now have four excavators on site, twice as many as was originally proposed to be on site <br />and no mitigation plans for it. He stated there is no basis to conclude that the mining <br />operation will meet and comply with DEQ standards. <br /> <br /> Robert Funk, Eugene, stated his house is within 900 feet of the subject area, putting him <br />at the impact zone, which is within 1500 feet. He added it could also be brought out to <br />2400 feet. He said they have 70 houses in the new subdivision. He noted they have <br />added a substantial amount of vehicles. He said in addition to the vehicles there are <br />trucks coming out of the quarry. He said DEQ establishes the standards but the funding <br />they have does not allow them to enforce those decibels. He noted the area is located in <br />FEMA’s 100 year flood zone so the water is already high. He thought the construction of <br />the pit would last approximately two to three months. He stated EGR never stated the <br />distance on how far the aquaclude is from the property lines. He said it shows the water <br />table does rise. <br /> <br /> DuPriest indicated the applicant has serious problems in terms of its proof as to the <br />quality of its rock, and the amount of noise it would cause the nearby neighborhood, and <br />the traffic impacts and the health effects of dust. He said those are the same concerns the <br />Lane County Planning Commission (with the exception of traffic and noise). They are <br />important and he urged the elected officials to consider them carefully. He said the <br />methodology of the initial noise test was for Delta to put some equipment out in the area <br />Page 10 – Joint Elected Officials' Meeting – December 12, 2006 <br />WD bc/m/06121/T <br /> <br />