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<br />NOISE REDUCTION PLAN <br /> <br />Advance Circuits, Ine. <br />with cooperation from the <br />City or Roseville <br /> <br />A. NOISE REDUCI'lON ELEMENTS COMPLETED BY ACI AS OF 31 JULY 1993 <br /> <br />(1) Fabricate and install sheet metal cover over the top of the central vacuum system <br />for the 1633 Building to muffle compressed air pulse noise from bag shaker <br /> <br />(2) Relocate two air cooled compressed air machines form the north wall of the 1633 <br />Building to the south wall and converted the larger unit to a closed loop water <br />cooled system so that the doors can be kept closed. <br /> <br />(3) Convert air cooled compressed air machine at the 1739 Building to a water cooled <br />unit and relocated the unit inside the building away from the north wall. <br /> <br />(4) Install new central vacuum system for the 1739 building that operates quietly (w/o <br />air bursts) and with a quieter motor. <br /> <br />(5) Disconnect vibrator on the central vacuum system for the 1633 Building. <br /> <br />(6) Permit interplant truck deliveries only between the hours of 8:00 pm and 7:00 am at <br />the far west dock of the 1739 Building. <br />(7) Permit the handling of all bulk loading of chemicals (over the road diesel trucks) <br />only between the hours of 7:00 am and 4:00 pm. <br /> <br />(8) Suspend the unloading of rinsed empty barrels off the dock of the 1633 Building to <br />minimize bouncing and banging noises. <br /> <br />(9) Request that BFI trash removal not pick up before 8:00 am. <br /> <br />(10) Modify PVC plastic exhaust system at the west end of the 1633 Building to eliminate <br />rattle. <br /> <br />(11) Replace older and less efficient (noisy) air conditioning equipment with quieter and <br />smaller units. <br />