Thanks all for the responses. I pulled some of the weeds out and it appears we have Curly-Leafed Pondweed. See attached and confirm if i'm correct on the identification. There is some FA mixed in and also a little bit of duck weed.
There is about 6" of muck on the bottom. The association has approximately $2500 annually to maintain the pond. In years past, most of that has been outsourced to a pond service to put in dye on a regular basis (sometimes weekly depending on rain events since this is a detention basin that collects water from roof run-off, ditches, driveways).
My roundup comment for the cat-tails was probably my ignorance in chemical matter. The pond service applied the herbicide to those and I do not know what they used. In any event, i appreciate the education very much!
Based on the weed species, any recommendations to control them moving forward? Though a big job, I wonder if raking them out and then applying a chemical application would be of benefit?
