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NoiseMitigationReport.doc Types of Equipment, Anticipated Sound Levels, & Mitigation Measures Planned to Minimize. Sound level Sound level Sound level Item Type of Construction Mitigation measures Equipment (dBA) at (dBA) at (dBA) at # work 50’ 100’ 200’ Mobile operation. Construction equipment sounds will be brief. Minimize by use of ambient 76 70 64 Removal of existing 1 Striping Grinder sensitive back alarms. Residents shall be notified 7 days prior by mail, email and updated internet roadway striping project home page. After hours noise complaint phone number available. Mobile operation. Construction equipment sounds will be brief. Minimize by use of ambient 70 64 58 Installing new striping sensitive back alarms. Residents shall be notified 7 days prior by mail, email and updated internet 2 Striping Installation Truck at crosswalk project home page. After hours noise complaint phone number available. Mobile operation. Construction equipment sounds will be similar to noise from SR104 nighttime Support striping 9 Street Sweeper 74 68 62 background noise. An after-hours noise complaint phone number will be available. operation.