Measured pond with the planimeter tool. Currently 3.415 surface acres. Would estimate 90% full and can change dramatically between drought and wet cycles (worst case - 60% full in drought conditions). Average depth 6-8 ft.. Recognize the need to ensure herbicide application is "scaled" properly for best results.

I struggle with the Coontail vs. Chara identification. I have included a couple of new links to higher quality pics that may be more useful.

Thanks again for the interest on the forum and the help identifying and treating my pond vegetation.

Image of stalk: http://i1383.photobucket.com/albums/ah311/GMD0911/pndbossstalk_zpsf410od8a.jpg?t=1448474250

Image of tip: http://i1383.photobucket.com/albums/ah311/GMD0911/pndbosstip_zpsqfjqdtqd.jpg?t=1448474248

Image of clump:
http://i1383.photobucket.com/albums/ah311/GMD0911/pndbosstip_zpsqfjqdtqd.jpg?t=1448474248