Public Scoping Newsletter

You are invited to become part of this planning effort by assisting us in identifying concerns, issues, and alternatives to be addressed in the environmental assessment. We will be accepting comments until October 14, 2011.

To comment please click on the "Comment on Document" at top.

Topic Questions:

1. What sounds do you feel are inappropriate in a national park?

2. What sounds do you feel are appropriate in a national park?

3. Do you have specific suggestions for ways that NPS operations and/or visitor activities might be modified to minimize impacts on the natural soundscape?

4. Here are some acoustic measurements used to describe desired conditions. Which ones do you feel may be easy to understand and explain?  Percent time audible - the percentage of time that human-caused sounds are audible to humans with normal hearing  Noise free interval - the amount of time with natural sounds only  Number of events per day or hour - the number of human-caused events per day or hour  Lmax dBA - the maximum sound level, dBA  Sound level of human-caused events (Leq) –the average sound level, Leq

Document Content:

Public Scoping Newsletter_Soundscape Management Plan   (92.7 KB, PDF file) Disclaimer: Links within the above document(s) were valid as of the date published. Note: Some of the files may be in PDF format and can be viewed using the Adobe Acrobat Reader software. You may download a free copy of from Adobe Systems.