"One guy has been back to the launch over 30 times, and he's only gone to decon five times." Jeffrey Gueniat told the Lakeville Journal this in late August. He supervises the new watercraft inspection and decontamination program on Lake Waramaug. The boater he described had learned how the system works. A small numbered seal links the boat to its trailer. If the seal is still intact when the boat comes back, the boat launches without another wash.
This fall matters because of that seal. 2026 was the first season of the program, called WISE Decon, short for Waramaug Invasive Species Elimination. That makes this October the first end-of-season haul-out under its rules. How your boat leaves the water in the next few weeks decides what happens at the ramp next April.
The season now ends at the ramp
Motorboats on the 656-acre lake have had to pass an environmental inspection since a 2004 agreement among the state and the three lake towns, Washington, Warren and Kent. WISE Decon adds a hot-water decontamination step to that inspection. It also adds an exit requirement that most boaters had never dealt with.
According to the program's FAQ, published by the Lake Waramaug Conservancy, every boat that enters the lake must also leave through the Washington Town Ramp while an inspector is there. "The seal system depends on every haul-out being witnessed and logged." The exit check is brief. If you plan to come back, the inspector fits a new seal and records its number.
Launching from a private dock is not allowed. The Washington Town Ramp is the designated access point for every boat, including boats owned by lake residents. A boat pulled out anywhere else has no logged seal, so it starts next season like any boat arriving from another lake.
The town's 2026 boat launch regulations list fall ramp hours from after Labor Day to the last Sunday in October. That window runs Saturdays, Sundays and Wednesdays, 6 to 11 a.m. and 4 p.m. to sunset. This year the last Sunday in October is October 25. Every weekday except Wednesday is closed, so only a few fall days remain to pull a boat out with an inspector present.
A fall haul-out under the new rules
The FAQ and the Conservancy's open-house notice describe this sequence:
- Bring the boat out at the Washington Town Ramp during inspector hours. The program depends on every exit being witnessed and logged.
- Ask for a return seal. The inspector applies and logs a numbered, tamper-evident seal linking the boat to its trailer.
- Clean, drain and dry before winter. The FAQ asks boaters to remove plants and mud, clean the anchor and its rope or chain, pull the drain plugs, and empty the bilge, live wells, ballast and other compartments, either at the ramp or at home.
- Keep the boat and trailer together. If you separate them, launch somewhere else, or handle the boat in any way that breaks the seal, you lose the exemption.
The seal does not expire. The FAQ says there is no time limit on an intact seal as long as the boat has not been in any other body of water since the seal went on. A seal fitted in late October will still be valid in April.
Where the boat spends the winter decides April
The FAQ answers the spring question one storage arrangement at a time. Side by side, the options look like this:
| Where the boat spends the winter | What happens at the ramp next spring |
|---|---|
| At home or in private storage, with the fall seal intact | The inspector confirms the seal, removes it and clears the launch, usually in a few minutes |
| At a marina that has signed a Marina Manifest Agreement with the program | The marina gives the inspector a signed Vessel Certification at delivery, and the owner does not need to be there |
| At a marina with no agreement in place | Full hot-water decontamination at the New Preston Fire Station before the first launch |
| Seal broken over the winter, or boat used on another lake | Full hot-water decontamination before launch |
| New, rental or demonstration boat | Full hot-water decontamination before its first launch of the season |
The marina row needs attention now. The FAQ says Marina Manifest Agreements cover the 2026 boating season and must be renewed every year. It also tells owners to ask their marina directly whether it plans to take part. The program accepts the agreement because winter in an outdoor marina yard kills invasive species through months of cold, dry conditions. That exemption only applies if the boat stays in the marina's custody from its fall removal from Lake Waramaug until spring delivery.
Delivery trailers have their own rule. A marina trailer often goes to several lakes, so the boat's certification does not cover it. A participating marina can designate trailers for same-day Lake Waramaug deliveries, but each designated trailer has to be decontaminated once at the start of every delivery day.
Mid-season service follows the same seal logic. A mechanic working on a boat at its slip does not trigger anything, because the boat never leaves the water. A boat hauled out for repairs gets sealed at the ramp. If the shop has to break that seal, the boat goes through decontamination before it goes back in.
What the firehouse stop involves
The decontamination station is at the New Preston Fire Station on Route 202, about 1.2 miles from the ramp. According to the program's interim report, the work was split between two sites because the town ramp has limited space. The firehouse has the water, power, drainage and staging area the job needs.
The Lakeville Journal watched one treatment on Saturday, August 29. A Lake Waramaug Country Club MasterCraft was examined underneath, along with its trailer and wiring. Its ballast tanks were flushed, and the hull and trailer were sprayed with high-pressure water heated to 140 degrees. About 20 minutes later the boat was inspected a second time and sealed. The Conservancy says most boats and trailers take 10 to 20 minutes. To book a decontamination outside station hours, email [email protected].
Decontamination is free. The $25 annual sticker and the $5 inspection fee for each launch have not changed from earlier seasons.
Paddlers have a lighter routine. Canoes, kayaks and paddleboards get a quick visual check at the ramp and usually skip the hot water, though Clean-Drain-Dry still applies. A craft that fails the check is sent to New Preston. Car-top boats with outboards of 12 horsepower or less still need an inspection and an environmental-fitness sticker before launching from Lake Waramaug State Park or the Washington ramp.
What the first season turned up
About 500 boats had been decontaminated by August 29. Inspectors found invasive watermilfoil on boats arriving from Candlewood Lake and Eurasian frogbit on a boat from Lake Zoar. They had not found hydrilla. At its September 1 meeting, Warren's Board of Selectmen heard that the decon trailer program was working well and that no hydrilla had been found.
The seal system is what keeps the program workable. Through June 30, the interim report recorded 67 repeat launches by boats with intact seals, and none of those boats had to be washed again. Warren First Selectman Gregory LaCava estimated that about 1 percent of boaters turned down decontamination and left. He said resistance overall was "way less than I had expected."
Officials have already named some changes for next season: cutting hours when the station sees little use, improving signs, and offering information in Spanish, especially for people arriving with car-top boats. No 2027 schedule had been published as of early October.
Why the fall seal matters to the budget
The first year cost a little more than $120,000, including about $40,000 for equipment, according to Brian Zipp, co-chairman of the Conservancy. The proposed budget for the next fiscal year is about $65,000. Zipp said the savings come from adjusting hours and making better use of the seal system so fewer boats get washed twice. The Conservancy owns the equipment, and Washington, Warren and Kent split operating costs 40/40/20. Washington's Board of Selectmen noted in April that private funding paid for the program through June 30, 2026, and that the town budget would carry the costs starting July 1.
Each boat that comes back in April with an intact seal is one fewer treatment the three towns pay for. Each boat hauled out without a logged exit is one more. Greg Bugbee of the Connecticut Agricultural Experiment Station told the Lakeville Journal that Connecticut already leads New England in the share of its lakes with at least one invasive species. "Prevention, compared to management, is a bargain," he said. "But it's not going to be easy to pull off."
Sean Hayden, executive director of the Conservancy, said he was glad the program was running by April, when the boat launch was ready to open. For boats sealed on the way out this month, next April should mean a seal check at the ramp and no stop in New Preston. The full first-season account is in the Lakeville Journal's coverage of the program.
At E.J. Murphy Realty, we have followed life around Lake Waramaug for three generations, and the routines of lake ownership are part of what we talk through with clients. If you own near the water in Washington or New Preston and want to know how the lake fits into your property's value, our Litchfield team can give you a free home valuation.
