orlando comas, landscape architect. This is not an artificial lake. It is a natural lake. The Owner has a company that provides a regular aquatic management program includes regularly scheduled treatments utilizing Environmental Protection Agency (E.PA.) approved aquatic herbicides and algaecides, the coloring of the water in the photo I believe was the result of some chemical (algaecide?) having been applied a couple of days before. Most of the time the color of the lake is the normal dark blue , blackish color.
They also place fish in coordination with a government agency. This is as much as I know since I am not really involved in the maintenance program.

orlando comas, landscape architect. There is no lining. This is a natural lake. The Owner has a company that provides a regular aquatic management program includes regularly scheduled treatments utilizing Environmental Protection Agency (E.PA.) approved aquatic herbicides and algaecides, the coloring of the water in the photo I believe was the result of some chemical (algaecide?) having been applied a couple of days before. Most of the time the color of the lake is the normal dark blue , blackish color.
They also place fish in coordination with a government agency. This is as much as I know since I am not really involved in the maintenance program.