Friends of Sebago Lake

Since 1992, we have been working to create a sustainable Sebago Lake.

Letter to Colonel Conde by Stephen Kasprzak

By writing this letter to Colonel Conde, we hope to bring the attention of the U.S. Army Corps of Engineers to the crucially understudied mixing layers of water bodies. In the surface layer specifically, the interface between the atmosphere and in oceans (for example), hydropower operations have disrupted natural seasonal

Read More »

Kasprzak’s Response to “Scientists: No Evidence CMP Project Dams Would Disrupt Vital Nutrient in Gulf of Maine Food Chain” by F. Bever March 28, 2019 in Bangor Daily News

Hello everyone, Steve Kasprzak has written a memo to Fred Bever about an article that was published by Maine Public News and also printed in the Bangor Daily Sun. The Bever article quotes two scientists, one Andrew Pershing of the Gulf of Maine Research Institute and the other William Balch of the Bigelow Laboratory in

Read More »

Letter to US Army Corps of Engineers by Stephen Kasprzak

This letter to the United States Army Corps of Engineers by Steve Kasprzak is another part of our continuing effort to inform the regulatory agencies of the impacts of hydro dams and flow regulation.  Steve has put together this masterpiece of “collecting the dots” of available information from different scientific disciplines.

Read More »


Friends of Sebago Lake has started a collection of newspapers articles, letters, and statements by scientists about the many impacts of dams and flow regulation.  The collection has a focus on Canadian hydropower, silencing of Canada’s scientists and showcasing the ability of a senior Canadian scientist Dr. Hans Neu to

Read More »


The mission of Friends of Sebago Lake (FOSL) is to promote an understanding of the interconnected harmful impacts of unnatural freshwater flows by dam regulation and to advocate for the restoration of natural freshwater seasonal water flows from inland waters to the seas.


FOSL’s mission includes the re-unification of fragmented freshwater ecosystems caused by dams impassable to fish. FOSL works for requirements that all dams in Maine have safe and effective fish passage for the full restoration of the historical range of Maine’s diadromous fishes.

We Pay Attention

To serve as a watchdog over those who regulate the flow of freshwater for their pleasure in their adherence to the laws of the Clean Water Act and State and Federal dam license requirements.

In The Name of Science

Promote the need for scientific study of the impacts of unnatural freshwater flow on the water quality and ecosystems of Sebago Lake and other Maine lakes and their water continuums all the way to the Gulf of Maine.

Friendly Restoration

Require the restoration of more natural seasonal cycles of freshwater flow in our lakes and rivers.

Fight For The Fish

Fight for the restoration of access and safe passage of diadromous fish to Sebago Lake and all Maine river watersheds.

From Here to the Sea

Advocate for and support scientific study of the relationship of unnatural freshwater flow on nutrient flux changes impacting coastal phytoplankton populations, coastal ecosystems, ocean acidity, and climate change



Contact Us

For any inquiries please email

Donations and inquiries can be mailed to "Friends of Sebago Lake"
10 Ryan Ave
Ipswich, MA 01938