will

Check out the following page from Oregon DEQ that states that county sheriff or city law enforcement handle noise control:
>>http://www.deq.state.or.us/aq/noise/index.htm

You might also want to call the office of Code Enforcement where you live. If it's Beaverton, you can find info at:
>>http://www.beavertonoregon.gov/departments/attorney/citycode/readcitycode.aspx