Hello. Lamar. Looks like you will have a great pond when the experts here get thru with it.
Thing that jumps out at me is with all the pines you have very acid water. Have you had the ph, alkalinity and hardness checked? Has lime been applied recently?
Need to get rid of the mud by applying probably about 1 ton of alum followed by at least as much Calcium hydroxide(quick lime) to neutralize the alum. Will look for the jar test to see how much alum you will need. It shouldnt stay that muddy for more than a week or 2 after a rain.