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ARDEN HILLS REGULAR CITY COUNCIL MEETNG—NOVEMBER 14, 2011 11 Mayor Grant stated he wants to know by how much the threshold is not met. Councilmember Holmes pointed out that the letter from MnDOT answers that question by stating the following: "A 20 foot high wall was analyzed and the results showed that the wall would cost $5,839 per decibel reduced per residence. A 10 foot high wall was also modeled and the results showed that the lower wall would cost$10,875 per decibel reduced per resident." Councilmember Tamble stated that he would like to see the supporting data. Councilmember Holmes stated that if the Council wants more information, the matter should be tabled. Public Works Director Maurer commented that if the Council wants more information, the County can provide that or they can ask MnDOT to provide it. He added that Chris Chromy has analyzed the data a number of different ways and has met with Mr. Cmiel several times, but Chris is not MnDOT. Councilmember Holden referred to Chris Chromy's memo,particularly the fourth bullet. Public Works Director Maurer stated that he could ask Chris Chromy to provide an estimate of how much this project area is above the threshold. Councilmember Tamble stated that he thinks the residents want to see that due diligence proved. Public Works Director Maurer commented that based on the Council's resolution, he thought the information provided by the County was adequate. Councilmember Holden questioned why the County is before the Council 14 months before the project is scheduled to begin. Mr. Lux responded that a year is not a long time considering the size of this project; they have to let the contract in 2012 and acquire right-of-way prior to that which takes approximately one year. He then referred to the final point in Pete Wasko's letter which states "Based on the information that I have, the analyses that were performed for both I-694 Environmental Assessment (EA) and the TH 10/County Road 96 EA, I find no noise barrier that would meet with MnDOT's requirement." Councilmember Tamble stated that to get literature that does not "hammer home" why this area does not meet the threshold is an issue. He questioned what he is supposed to tell residents. Public Works Director Maurer commented that he, Joe Lux, and Chris Chromy have been meeting with Mr. Cmiel for almost as long as Mr. Maurer has been with the City. Both Mr. Lux and Mr. Chromy have gone through the numbers so this is not the only time that letters have been prepared stating this area does not meet the threshold; it stated that in the EA, and it was stated every time they met to analyze the numbers in a different way. He stated it does not work because of the density.