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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 />