Depending on the activity, the aquatics land manager may state that you need to attach additional information.
Yes, DNR staff will need to thoroughly review the site, other activities in the area, current laws and regulations for the type of activity, potential impacts based on the time of the year, and other considerations for the type of activity proposed.
It depends on the activity; DNR can authorize it for up to four years, but generally the term is for less than one year.
There is no official appeal process. However, DNR will work with you to see if adjustments to the activity or a different type of agreement would allow the proposal.