Current Water level: 196.5' (Updated 07/06/22 12:12 am)

News & Events

News that matters for Lake Lillinonah

Latest News


June 24, 2022

Please see below for communications from Solitude Lake Management regarding today’s treatments:

Lake Lillinonah is to be treated for invasive weeds on Friday June 24, 2022 using the product, Tribune. Treatment areas are: Barkwood Cove in Brookfield, the shoreline along Lake Lillinonah Road South in Bridgewater, and the shoreline along Hanover Road in Newtown. The following water use restrictions are to be followed for those within the treatment zones: Do not irrigate with lake water until June 27th. Do not drink lake water until June 27th. Do not water livestock with lake water until June 25th. There are no restrictions for swimming or boating. If you have further questions, please contact Solitude Lake Management at 508-865-1000.

Firstlight Power: Registration of Historic Use

October 05, 2021

Friends of the Lake,

Earlier this year, Firstlight Power distributed a letter via US mail to inform that if you currently have shoreline and/or land uses along the shores of Lake Lillinonah, it requires approval. It included instructions necessary to register your existing uses and obtain a Certificate of Permission from FirstLight, which either owns or has rights to flow water along the entire shoreline.

For those who did not receive this letter, or have not completed this registration, Lake Lillinonah Authority and FirstLight Power worked together to develop and communicate this last opportunity to our friends and neighbors along the shoreline of Lake Lillinonah to ensure those who do qualify have the opportunity to register accordingly. Since the online registration system is now closed, FirstLight has developed this form which can be filled out and submitted to FirstLight for their review, to determine if a “Certificate of Permission” can be issued for the adjacent waterfront parcel to register your historic shoreline and land uses.

If you did not receive the earlier letter sent out by FirstLight to its neighbors, a copy of the “Notice of Requirement to Register Your Existing Shoreline and Land Uses” is linked here as well.

This process is solely for the purpose of registering your existing shoreline and land uses and should be your first step in obtaining the required authorization for your shoreline and land uses within the Project boundary. Should you wish to perform any repairs, maintenance, modifications or submit a request for any new shoreline and/or land uses it will require additional application information to be submitted to FirstLight for review and approval by the issuance of a subsequent permit specifically authorizing approved activities. Permit Application Forms and additional information are available on FirstLight’s website

Action required:

For those who have shoreline and/or land uses along the shore of Lake Lillinonah and want to register, please complete this form titled ‘Registration of Historic Use’. There are two ways to submit this form:

1) Website (which is the preferred method) by clicking here, filling out your information and attaching your completed form. 2) You can email it to:

This form is due no later than: November 1st 2021

If you have questions, click here for a FAQ document (disregard the first page). If you have additional questions, you can reach Firstlight directly via this “Contact Us” link (also found on their website), which allows them a way to assign and manage the responses in their databases.

2021 Fall Drawdown begins October 27th

October 05, 2021

Beginning on October 27, 2021 FirstLight will conduct a drawdown of Lake Lillinonah at the Shepaug Dam to conduct its maintenance and inspection activities. The normal summer operating range of the station is from 200’-195.5’ and the drawdown will target an elevation of 191’. The drawdown will lower lake levels to minimum pond levels and return to normal operating elevations on November 8, 2021. All homeowners are encouraged to remove structures, boatlifts, and docks from Lake Lillinonah to prevent ice or flood damage from occurring during the winter months.

Heartbreaking News: Jeff Tinley

September 08, 2021

Dear Friends of the Lake:

With heavy hearts and tears in our eyes we inform you of the passing of Jeff Tinley. A great friend, Friends of the Lake board member and tremendous human being, “JT” was a man of exceptional character and intellect. Though soft-spoken, he had the ability to light up a room with his grin and guide a conversation with his brilliance. He was a founding member of Friends of the Lake. His legal expertise and belief in our mission helped us navigate the many legal and political challenges we’ve faced, giving our small organization a larger voice and commanding presence. He will be sorely missed but always remembered! We know you all join us in sending love and prayers to his wife Mary and his family during this most difficult time.

A memorial service will be held at the Sacred Heart Church in Southbury this Friday, September 10th, at 11AM. His family is planning a reception at the Scatacook Shores Beach from 12:30 to 3pm.

We encourage all who are willing and able to join in a boat gathering at 2pm in front of Scatacook Shores to honor our dear friend, and a true FOTL hero, during the reception.

Please visit the following link to see a wonderful tribute in honor of JT:

DEEP and DPH Advise Against Swimming or Other Water Contact Recreation Over Next 48 Hours Due to Storm Ida’s Impact

September 02, 2021

(HARTFORD)— Given the significant rainfall that has occurred due to Storm Ida, many areas across the state have experienced discharges of untreated sewage. The Connecticut Department of Energy and Environmental Protection (DEEP) and the Connecticut Department of Public Health (DPH) are advising against direct contact with surface water in areas in close proximity to drainage pipes statewide, particularly in urban areas such as Bridgeport, Hartford, Waterbury, Middletown, Meriden, Wallingford, Stamford, Norwalk, Norwich, and the greater New Haven area within 48 hours of the end of the rainfall in Connecticut’s streams and rivers. Residents are advised not to swim, fish, or utilize paddlecraft in these areas.

Regarding DEEP designated swim areas, DEEP tested water quality at state park swim areas on Monday and Tuesday of this week. For the latest water quality report, please refer to the State Swimming Area Water Quality Report. These test results are the most current, though with the significant amount of rainfall from Storm Ida, DEEP and DPH remind residents that heavy rain events such as this may cause water quality to degrade due to stormwater runoff and combined sewer overflows.

Additionally, water levels around the state are very high, with the possibility of strong currents and hazardous debris present in rivers and streams. DEEP advises anyone considering getting on or in rivers and streams to wait until water levels go down. Anyone who is considering water-based recreation in or around moving water should use extreme caution.

Lowering Lake Lillinonah due to Hurricane Henri and forecasted river flows

August 20, 2021

This message about changing water levels on Lake Lillinonah is brought to you by Lake Lillinonah Authority, Friends of the lake, and First Light Power Resources.

Due to forecasted high river flows, We are lowering Lake Lillinonah starting tomorrow morning. The approximate pond level the lake will be taken to will be 192.0. This is 3.5 feet below our normal low operating level and will be held there until high river flows subside.

News archives coming soon...



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