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When moving the vehicles three readings were taken at two different locations. The first set were taken <br />in the northwest corner of the property and included driving the vehicle straight into the shop, backing <br />the vehicle out with the exhaust pointed towards the residential homes, and backing the vehicle out with <br />the exhaust pointed towards the highway. The purpose of the test was to evaluate whether or not there <br />was a significant difference to the noise levels by changing operational techniques. The noise readings <br />are summarized in the attached table, and demonstrate a 12 -decibel reduction by backing vehicles out <br />towards the highway. The same measurements were also taken at the backside of the nearby residence, <br />with similar results. <br />The second set of noise readings involved leaving the side door open when vehicles were started for <br />testing purposes in the shop area. Staff had been alerted that the side door had been left open on a <br />number of occasions. Mr. Wells stated that the door was left open to circulate air into the building on <br />hot days. The sound readings show an increase of 15 decibels from the base measurement when vehicles <br />inside of the shop were started for testing and tuning purposes. <br />Soil Testing <br />The results from the soil testing done on the residential property were received on July 24, 2015, and <br />revealed higher than expected results for diesel fuel, gasoline organics, and some heavy metals. The <br />Environmental Division is working with the Soil and Water Conservation District and the MPCA to <br />evaluate potential impacts and possible remediation. <br />Financial Impact <br />None <br />Attachments <br />City Council Packet dated July 6, 2015 <br />Noise Reading Table/Map from July 29, 2015 <br />N:APublic Bodies\Agenda Packets\08-03-2015\x7.3 sr HiTech.docx <br />