Crescent Lake Neighborhood Association - CLNA

08/04/2026

07/30/2026

From Elisabeth Moore, District 4 Legislative Aid:

Regarding the water lettuce in Crescent Lake – it really took off quickly this year! There have been several mechanical harvesting efforts over the last month by the City and by groups such as Stewards of our Urban Lakes. After mechanical harvesting, the lake received a systemic treatment approximately two weeks ago to address blooming aquatic vegetation by targeting the entire plant, including its roots. This treatment works gradually and visible results typically appear within 3 to 4 weeks. A supplemental treatment is already scheduled in two weeks. This two- step treatment process is slower but provides control while helping reduce the risk of oxygen depletion and fish kills compared to fast-acting treatments.

This morning we received an update from the City's Lakes Manager Michael Perry that they are actively conducting mechanical removal of vegetation, as is standard practice before the systemic treatment application. He stated:

“Today, we are actively conducting mechanical removal of vegetation. This has been our standard practice, to remove biomass before chemical usage, and was performed prior to the treatment about two weeks ago. We rely on chemical removal once we encounter non-productive removal rates that don’t address the blooms. Challenging conditions and the prolific growth of water lettuce made chemical treatment necessary and a contractor performed a treatment.

As mentioned, the contractor recently performed what is called a systemic treatment; however, results typically take three to four weeks to appear. We’re already seeing minor yellowing, and expect more visible changes in the coming week. The contractor is aware of both the residents’ and the City’s concerns, and the contract includes a second treatment, which could start within the next two weeks.

We want to avoid over treatment and spraying, we are closely monitoring the situation and removing as much biomass as possible. Over-treatment could harm non-target species, including the cherished wetland area created by the community, Friends of Crescent Lake, and Stewards of our Urban Lakes and hastening in decomposition increases the risks such as fish kills and downstream effects.

Please let us know if you have any other questions. We remain committed to resolving the bloom as quickly and as safely as possible.”

I hope this is helpful and provides some more context for the status. The growth conditions for this type of bloom are optimal, so I know staff is working on various similar situations throughout the City.

07/26/2026

Just a couple of neighbor dogs, showing their pride in Small and Medium bandanas. We also have LARGE. Shop here: https://clnastpete.org/merchandise

07/26/2026

Got a hundred year old house? Why not decorate it with a newly designed, fade resistant CLNA Centenniel flag! Shop here https://clnastpete.org/merchandise

07/05/2026

The last photos from yesterday's event! Some real gems here. Enjoy!

07/04/2026

Two canine neighbors showing off their CLNA pride in our latest swag, puppy bandanas! Zeus is modelling our Small, and Elliot is showing off Medium. We also have Large for our pups in larger bodies. Available on https://clnastpete.org/

07/04/2026

More photos from today's parade! A good time was had by all.

07/04/2026

First batch of pix from the event! More to come as we get them. It. Was. EPIC!!! Thank you to all participants!

07/04/2026

Happy 4th of July!

07/04/2026

We’re ready! First arrivers!