Truesdale Lake  

South Salem, New York

July 18, 2016
by rob
Comments Off on Lake Survey Report – July 13th, 2016

Lake Survey Report – July 13th, 2016

From the report:

7/13/16 Survey of Lake Truesdale.

“The water column was green with unicellular algae. North of the launch and up along eastern shore displayed Elodea in sparse patches. Denser infestation in the northeastern cove covered with filamentous algae. The northern end by the spillway displayed trace patches. Down the western shoreline, the Elodea becomes sparse to moderate density to the cove area just south of west beach. Then the density increases with moderate patches scattered around the cove. Past the island, down to the southern end and back along the launch, the Elodea becomes very dense with filamentous algae clinging to topped out plants. The lake center displayed stray patches of Elodea with 90% of the plants topped out. Water samples collected for algae county. Spoke with Lara Gorton on site. She noted that the lake has been used more this year than compared to last year.”

See once page report at website. Continue reading

June 21, 2016
by rob
Comments Off on Lake Management Presentation by Christian Jenne from SUNY Oneonta

Lake Management Presentation by Christian Jenne from SUNY Oneonta

On Thursday, June 16th, Christian Jenne presented his preliminary findings on the state of Truesdale Lake. Slides from his presentation are below. His final written report – which is also his Masters in Lake Management thesis for the SUNY Oneonta Masters in Lake Management program – we anticipate will be published in September 2016.

Click below to view slides. (these are available at lake website in this article)

Continue reading

June 15, 2016
by rob
Comments Off on Lake Meeting June 16th

Lake Meeting June 16th

Reminder: Two meetings on Thursday evening 6/16 at the South Salem Presbyterian Church.

1.) TLPOA members will meet from 7 – 8 p.m. — to review TLPOA matters (our budget, our water system, our plans for the coming year). **This first meeting is only for TLPOA members.**

2.) Then, at 8:15 – all those interested in Truesdale Lake are invited for the second meeting. Christian Jenne (from the SUNY Oneonta lake management team – who has been working with us for the past two years) — will make a presentation — and then we will have some time for questions and to discuss “next steps.”

The second meeting is open to all lake residents and will run from 8:15 until about 9:45. Continue reading

June 14, 2016
by rob
Comments Off on Call for Summer Lake Photos

Call for Summer Lake Photos

Send in your Summer Photos all summer long to and I will post them at the lake website.

Photos can feature wildlife, summer activities, leaves, flowers, boating, swimming, sailing, fishing — or pretty much anything that happens in summer around and on Truesdale Lake.

If you have a title for your photo, let me know. All photos will be credited to the photographer.

Thanks! … Rob Continue reading

June 2, 2016
by rob
Comments Off on Dead Fish

Dead Fish

You may have noticed dead fish along the shoreline recently. We have seen this before with Sunfish late every spring. But this looks like a different species of fish – Alewife – which we have not seen before in such quantities.

Testing will be done on some of these fish to rule out any unnatural causes for their deaths.

For now we are assuming that it was a combination of factors that led to their deaths:

-The sudden heatwave of Memorial Day weekend,
-The end of the spawning season which leaves fish exhausted and fragile (been there, done that),
-and large flocks of Cormorants hunting these fish which stresses them more.

In short, very likely natural causes.

[ If you are interested in following this topic, you should join the Nextdoor Truesdale neighborhood page and check out your neighbor’s posts and information about these and other current topics! Link to join: ]

It is important to note that we have NOT treated the lake to date in 2016 so anything related to Aquathol-K or other treatments can be ruled out as a cause.

We are also interested in learning how Alewife came to be in Truesdale Lake and what impact their population will have on the lake ecosystem. Christian Jenne, who is studying the lake from the SUNY Oneonta Lake Management program, can hopefully offer insight into the impact the fish may have and if it is new to our lake.

It is possible the fish were stocked upstream and escaped down into the lake. Or a lake resident or fisherman may have added them on purpose or inadvertently, perhaps from a baitfish bucket? The long term impact remains to be seen.

Here’s a link to an interesting article Barbara Cohen found online from the University of Wisconsin Sea Grant program with some more detailed explanations noting that Alewife are usually salt water fish and spawn in fresh water unless trapped upstream. Quoting from that article:

“Alewives are not well adapted to the osmotic stress associated with life in fresh water. In freshwater, the salt concentration in a fish’s body is higher than the surrounding water. For this reason water tends to leak into the cells of the fish, a process called osmosis. Freshwater fish must constantly ‘pump’ water out of their bodies; fish that are well adapted to a freshwater environment have larger kidneys than their saltwater counterparts. Because of this physiological stress, alewives are rather sensitive to disturbances in [their] environment… A severe change in water temperature … can cause the fish to die.”

We will update this article if we learn anything new. Continue reading

May 22, 2016
by rob
Comments Off on Regional FOLA lakes meeting 7/22 at China Lake in Carmel

Regional FOLA lakes meeting 7/22 at China Lake in Carmel

A note below from Janet Anderson who is an active member of the Three Lakes Council (Waccabuc/Rippowam/Oscaleta) in Lewisboro:

Hello lake folk!

Save the date! This year’s Regional FOLA lakes meeting will be Friday, July 22, at the Sedgewood Club on the shores of China Lake in Carmel. We are grateful to David Africk and the club for inviting us back to this wonderful location.

The meeting will start at 9:30 and will conclude about 2 pm. Lunch will be available. The cost to attend is $5 per person.

We have a great line up of speakers so far. Our featured morning speaker is Greg Boyer, who is a world expert on Algae and Harmful Algal Blooms (HABs). Greg, from SUNY ESF, screens algae and toxin for almost all of the lakes in NY. Chris Doyle, CLM, from SOLitude Lake Management, will talk about searching for invasive plants. He’ll once again bring samples of native and invasive plants. Chris and I will present a protocol so volunteers can search for invasive plants and identify the plants on your lake. Chris is also willing to answer any lake management questions you may have.

We have time for another short presentation. In the past we’ve had lake volunteers talk about their lake and activities, and that has been very well received. If you would like to share the story of your lake at this meeting, please get in touch. And there will be time for networking with other lake users in the area.

If you are planning to attend, please respond ( and let me know, as a count of attendees is essential for our planning process.

I’ll send out reminders and directions as we get closer to the conference date. Meanwhile, let me know if you have any questions. See you then!


Links: Continue reading

May 17, 2016
by rob
Comments Off on Spring at the Lake

Spring at the Lake

We got a lot of photos from the Fall photo series request – not so much for the winter one (probably since we didn’t have much of a winter this year…)

We’re back again for your SPRING PHOTOS!

Send your spring lake photos to and I will post them at the lake website.

Photos can feature baby animals, spring activities, new plants, wildlife, boating, memorial day races — or pretty much anything that happens in spring around and on Truesdale Lake. If you have spring photos from past years send them in but please note the year it was taken if you know it.

If you have a title for your photo, let me know. All photos will be credited to the photographer.

Thanks! … Rob Continue reading

May 15, 2016
by rob
Comments Off on Please Help Keep The Lake and Neighborhood Clean

Please Help Keep The Lake and Neighborhood Clean

Truesdale Lake is lovely for a walk any time of year. We welcome many people from both the neighborhood and outside the area to our perfect 2.6 mile loop.

Unfortunately, some folks walking with dogs are not cleaning up after their pets. The evidence is right at the curb, near the mailboxes, and sometimes right in the middle of the street.

It is an unpleasant topic — but it must be addressed.

If you own a dog, these unwelcome feces (are there any other kind?) pose a direct danger to *your* pet.

Dog poop can carry disease or parasites (hookworm, roundworm, and campylobacter) which can spread throughout the dog community quickly.

The poop also can be a severe health hazard for small children, organ transplant recipients, immune system compromised patients, and the elderly.

Finally, the poop contributes to elevated fecal coliform bacteria in the lake and is generally disgusting smelling and unpleasant.

What can you do?

If you own a dog, clean up after your pet. There are bag carriers that attach to leashes and collars like the one for sale here (and here) [links at website version].

We know the vast majority of dog owners do their part and clean up. But several people have posted about dog owners who dispose of the poop bags in the nearest (private) garbage bin. This seems like a logical thing to do — BUT it is a problem. Why? Many of the trash removal companies simply leave these baggies behind when hauling the big bags of trash. Why are they so picky about what they throw into their trucks? We don’t know! Unfortunately this leaves the homeowner to clean up the bags — sometimes after they have sat for several weeks unnoticed and sometimes split open at the bottom of the trash bin. Speaking from experience, it is not pleasant cleaning the bottom of a trash bin that has been soiled by an unknown dog. Solution: Take your used doggie bags back to your own trash to minimize your impact and be a good neighbor.

If you see a dog owner who is not taking responsibility, please politely ask them to clean up after their pet. If they refuse, you can offer them a plastic bag if they have none. In cases of repeat offenses, the Lewisboro Dog Control Officer (Christine McKenna) can be reached via the town.

You can also email Janet Donahue, Lewisboro Town Clerk (914-763-3511). Town law prohibits dogs from “Creating a nuisance by defecating, urinating or digging on public property or private property other than that of its owner” among other things. Owners can be fined between $50 and $100 for first offenses and up to $600 for repeat violations. New changes in state and local dog laws took effect in 2011.

The town and lake community can help as well. The community can help educate residents about the dangers of dog poop.

The town and/or associations may be able to help by getting “doggie bag” dispensers and possibly receptacles placed strategically around the lake. This is a possibility — But it brings up other questions like:

-how much do they cost (purchase & installation),
-where should they be placed,
-who is responsible for emptying the bags,
-who restocks the bags when they run out,
-and who pays for:
–the initial investment in bins and
–the ongoing costs of removal and restocking?

Working together we can help stop this problem and keep our wonderful lake neighborhood clean and healthy for all residents year-round!

Please write any comments or ideas you have in the comments section at the site.

Continue reading

April 29, 2016
by rob
Comments Off on 2016 Lake Treatment Notification

2016 Lake Treatment Notification

Truesdale Lake Property Owners Association (TLPOA) and Truesdale Estates Association (TEA) will continue the Lake Management Program for Truesdale Lake in 2016. The Program is intended to control pondweeds (Potamogeton crispus and P. foliosus) and algae, thus improving water quality conditions as well as the recreational and aesthetic value of the lake. We hope to bring a more natural balance to the lake in 2016 by reducing the herbicide treatment allowing a moderate growth of pondweeds in an effort to offset the significant algae growth we have seen over the past few seasons.

>Note: Mark June 16th as Lake Management Day:
> – 7-8pm TLPOA Annual Meeting (TLPOA Members only please)
> – 8:15 – 9:45pm presentation at South Salem Presbyterian Church on Lake Management status – all lake residents welcome

The Program is being carried out by NYSDEC certified personnel from the lake management firm SŌLitude Lake Management, (formerly ALLIED BIOLOGICAL INC.), registered with the New York State Department of Environmental Conservation (16506). NYSDEC permit applications will be submitted requesting approval for the application of the herbicide Aquathol-K (endothall) and the algaecide Copper sulfate.

Treatments are anticipated to occur between April 1 and August 31, 2016 and will proceed only after the issuance of NYSDEC permits and authorization from the Client. Aquatic pesticide applications will only occur if sufficient aquatic vegetation is present to warrant treatment and favorable weather conditions exist. Prior notification of the exact dates of treatment will be provided to the Association and NYSDEC 7 days prior to treatment and by shoreline posting on the day of application. Water use restrictions are as follows: Continue reading

March 31, 2016
by rob
Comments Off on Article Link: Plants to Use and Avoid When Planting a Vegetative Buffer

Article Link: Plants to Use and Avoid When Planting a Vegetative Buffer

Allied Biological has merged with another company and renamed itself SOLitude.

SOLitude is the company we contract with to apply herbicides and algaecides to the lake in the spring and summer as needed. They also test the water and perform plant surveys periodically as well. SOLitude works with our Lake Management Committee to develop a lake treatment plan for each summer.

You can read more about our Lake Management Committee here. The Lake Management Committee is made up of residents of the lake community who are dedicated to sustainable management of our wonderful lake.

The SOLitude website has some helpful articles including this one (excerpt here):

“Recommended Plants to Use and Avoid When Establishing a Vegetative Buffer

Lake and pond issues often start on land. When it rains, stormwater runoff accumulates a significant amount of nutrients such as phosphorus and nitrogen before draining into your waterbody. This can lead to water quality issues like foul odor, poor water clarity and algae blooms. Having an established vegetative buffer surrounding your lake or pond not only helps filter these harmful nutrients, but also provides shoreline stability and helps prevent erosion. And by reducing the inflow of sediment into your waterbody, a well-maintained buffer can help prolong or even prevent the need for future dredging.

Additionally, vegetative buffers create an excellent habitat for dragonflies and other natural predators that feed on mosquitoes and their larvae, thus leading to improved mosquito control around your lake or pond. Buffers are also a major deterrent to nuisance Canada Geese and can prevent them from becoming full time residents on your property…. [Read more at website]”

Their site also has many other useful resources. Continue reading