Many of you have already noticed the recent changes in the lake. Over the past two (2) months we’ve seen a “bloom” of bladderwort and sago pondweed. To combat the additional plant life, we employed the services of Aquatic Escapes to treat the weeds with an aquatic herbicide that is totally safe for people, pets and fish. We also installed 300 grass carp, which is a more natural and long-term approach to control weeds. Grass carps are fish that feed on aquatic vegetation and will help keep the pond weeds in check. As the treatments work, we may see more of the dead plants rise to the surface. We aim to reduce aquatic weeds not only for aesthetics but also for ecological reasons. An overabundance of aquatic plants can strain a pond’s ecosystem and potentially lead to a fish kill. During daylight hours, plants produce oxygen and raise the water pH, yet at the same time the plants respire, removing oxygen and adding carbon dioxide and lowering the pH. If this cycle isn’t balanced, issues can result. Also, weeds can clog the pumps to our fountains and irrigation system. We have not quite reached the point of overabundance but our goals are to take these precautionary measures to prevent future problems.
Additionally, we will be replacing a water line on the PSC side of the lake in the near future. This is very important as we use the lake water to irrigate the majority of our campus. The drainage system throughout campus replenishes the lake with each rain. We irrigate the campus using a very complex pump system from the lake that distributes water to areas that need irrigation. To continue the efficient recycling of rainwater, we must dig up and replace the leaking sections behind the PSC.