Why is the lake still producing Algae Blooms even after the Aeration System has been installed and working properly?

The in- lake Aeartion System is only one part of the on going effort to reduce nurtient loading. The system is designed to produce dissolved oxygen at the bottom of the lake to keep the nutients suspended in the soils at the bottom of the lake. If there was no oxygen in the deeper parts of the lake the Cyanobacteria would raise up throughout the water colomn looking for nutrients (phosphours and nitrogen to feed on) therefore producting significant algea blooms. 

The one thing the Aeration system can not control is the Watershed run off. This run off during a significant rain event (4"-5" over the course of several hours) will produce a large amount of nutrients (Phosphorus and Nitrogen) flowing into lake pocotopaug, these nutrients spread out throughout the lakes water colomn instantly become a feeding ground from Cyanbocateria and with hot temperactures is the perfect mixture for algae blooms in the lake. The combination of in-lake treatment (aeration), watershed projects (9 point watershed plan) and educating the public are the three main factors for success that will be determined over many years. The success of bringing Lake Pocotopaug back to a healthy state is not a quick fix and will take the town and residents of East Hampton years to accomplish.

For more information on the three factors we as a town are focusing on click the link provided https://www.easthamptonct.gov/sites/g/files/vyhlif7556/f/uploads/lake_ef...