Behrens and Associates, Inc.
Environmental Noise Control
Rare Element Resources
October 30, 2012
Page 2
Measurement Results
Attachments 4 through 19 display the measured hourly average sound levels along with
the 24-hour average sound level. The tabulated data for locations 1 through 16 are identified in
Attachments 20 through 23.
Weather Conditions
Review of the weather conditions during the ambient monitoring period revealed winds
on Thursday, October 4, 2012 and Friday, October 5, 2012 ranging from calm to 17 mph with light snow
recorded on Friday. The measured weather conditions as stated by
for Casper,
Wyoming are located on Attachment 24 through 26.
Please contact me if you have any questions or comments.
Very truly yours,
Bradley Webb
Acoustical Superintendent
Attachments
