Board of Directors Meeting Minutes

8:30 a.m. Saturday, July 9, 2016
Salem Lutheran Church

Board members in attendance: Lee Uglem, Glen Vanic, Terry Tichenor, Bruce Butler, Dean Sodahl, Brad Hanes, Dennis Recknor, Jeannie Stanton, Dennis Bowles and Pat Norby

Minutes from the June 11, 2016 meeting were read and approved

Treasurer’s report was read a approved, noting a balance of $61,389.20, with 99 paid memberships and $4,800 raised for the Preservation Fund

NEW BUSINESS:
1. Officers were voted on and approved: Lee Uglem as president; Terry Tichenor as vice president; Glen Vanic as treasurer and Pat Norby as secretary
2. Boat parade had only 5 decorated boats, possibly due to the 4th being on Monday and people leaving early that day or evening. The Churas took the paddle with their Harry Potter theme and the Stantons took 2nd with Prince/First Avenue
3. Seeking volunteers for booths at Summer Fest 8-12/13 and Heritage Days 8-20
4. Uglem plans to test for zebra mussels on 7-11-16
5. Terry Tichenor agreed to take on grant writing proposals to the Initiative Foundation and the IRRRB
6. PLM credited SLA for 2 acres of Curly Leaf Pond Weed, refunding $586

OLD BUSINESS
1. Summer Place – update noted that a lot of dirt work and planting will need to be redone after the recent 3” storm that tossed mulch in the ponds and clogged drains.
2. Water Watch and the website need new volunteers to prepare and update. Bruce Butler will talk with someone he knows on the lake
3. Directories are being delivered by zone leaders. New products such as the beach bags, a Serpent Lake flag or other products could be sold at the booths

A social is planned for 4 p.m. July 30 at the Crosby Bar

The next meeting will be Aug 13, 2016 at Lee Uglem’s home

Meeting adjourned at 9:50 a.m.

Submitted by Pat Norby, secretary

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Alum Treatments to Control Phosphorus in Lakes


What is alum and how does it work? ALUM (aluminum sulfate) is a nontoxic material commonly used in water treatment plants to clarify drinking water. In lakes, alum is used to reduce the amount of the nutrient phosphorus in the water. Reducing phosphorus
concentrations in lake water can have a similar clarifying effect by limiting the availability of this nutrient for algae production. Phosphorus enters the water either externally, from run-off or groundwater, or internally, from the nutrient rich sediments on the bottom of the lake. Phosphorus is released from the sediments under anoxic conditions that occur when
the lake stratifies and oxygen is depleted from the lower layer. Even when external sources of phosphorus have been curtailed by best management practices, the internal recycling of phosphorus can continue to support explosive algal growth. Alum is used
primarily to control this internal recycling of phosphorus from the sediments of the lake bottom. On contact with water, alum forms a fluffy aluminum hydroxide precipitate called floc. Aluminum hydroxide (the principle ingredient in common antacids such as Maalox) binds with phosphorus to form an aluminum phosphate compound. This compound is
insoluble in water under most conditions so the phosphorus in it can no longer be used as food by algae organisms. As the floc slowly settles, some phosphorus is removed from the water. The floc also tends to collect suspended particles in the water and carry them down to the bottom, leaving the lake noticeably clearer. On the bottom of the lake the floc forms a layer that acts as a phosphorus barrier by combining with phosphorus as it is released from the sediments. Why treat a lake with alum? Increased nutrient loading, particularly phosphorus, has accelerated eutrophication of lakes and consequently reduced their ecological health and recreational value. Frequent and pervasive algal blooms, low water transparency, noxious odors, depletion of dissolved oxygen, and fish kills frequently accompany cultural eutrophication. External sources of phosphorus delivered in run-off from the watershed are often the main contributor of excessive phosphorus to lakes.
[Article from Wisconsin  Department of Natural Resources]
The water in Cranberry Lake was treated with Alum on June 6th. The objective is to reduce the amount of phosphorus from Cranberry that flows into Serpent. Flow
measurements indicate 57 pounds of phosphorus flows into Serpent each year. This predicts an additional 28,500 pounds of plant life in Serpent, mostly Algae. Algae is the major contributor to reduced water clarity in Serpent Lake. Cranberry Lake’s phosphorus
concentration in the water column was 155 mcg/L on June 2nd (before treatment). After treatment on June 15th, the concentration was 39 mcg/L. The treatment Alum combined with 75% of the available phosphorus. This newly formed inorganic compound is dense so it precipitated. The new compound is similar to clay soil found on many lake bottoms.
Without motor boat traffic on Cranberry and a lack of high waves from the wind, the thin layer of precipitate should remain in place longer. We are planning on water testing
Cranberry in the coming years to see if, or how fast, the lake returns to its former state. Typical MN lakes, most a lot larger, than Cranberry, have taken up to 15 years before treatment was needed again.

Now is the time to check your shoreline for Purple Loosestrife

Those pretty purple flowers on a stem along your shoreline could be an invasive plant. The following shows the leave arrangement, stem geometry, and flower peddles that make it easy to ID Purple Loosestrife. With all the rain we had recently, the stems are easily pulled out.

 

 

 

 

 

 

 

High Water – No Wake Zone

After all of the storms and rain we received in July, many lakes in our area declared a no wake zone on their lakes. This was to prevent erosion of lakeshore and further damage to docks and watercraft. Our Lake level is still very high and we are asking all boat and
watercraft operators to be responsible and not operate close to shore and avoid creating large wakes from your watercraft. We have all had too much damage from the storms, so please be courteous toward your neighbors on the lake.

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President’s Corner

Lee Uglem
Will the rain and storms please quit soon? July has been anything but pleasant in 2016. Mother Nature has reared her angry head, but cannot stop the progress of our improvements to the Serpent Lake watershed. In May, PLM was contracted to treat our invasive weed [Curly Lee Pondweed] to the tune of roughly $18,000. The application to 49 acres of CLP beds went smoothly with two boats applying the herbicide [Aquathol]. A survey done several weeks later showed roughly two areas in Deerwood bay unaffected by the treatment. We will be credited next year by PLM.
Early June, Alum [aluminum sulfate] was applied to Cranberry Lake to reduce phosphorus from internally loading runoff into Serpent Lake from the nutrient rich sediments on the bottom of the lake. When Alum is applied to a lake, the pH of the water turns acidic and could kill all living fish and animals in the lake. Therefore, following behind the pontoon applying the liquid Alum was another boat applying a buffering agent [sodium aluminate] to keep the pH levels constant and in control. Please check the article in this Water Watch for the results.
The 4th of July seemed to come and go so fast this year. There were all kinds of celebration and fireworks throughout the area to enjoy. Our 4th of July boat parade was enjoyable [even though the weather was cloudy and windy] to show off the boats as they went around the lake. Our “Traveling Paddle Award” was given to the John and Sue Chura family for their theme of Harry Potter. A lot of work went into their decorated boat, and the people around the lake appreciated it! Congrats!
The Summerplace storm water project is nearing completion. There should be a ribbon cutting ceremony soon to celebrate all the hard work. With all the rain and storms this summer, work has been slowed and tested many times. All who live in the Serpent Lake area can be very proud of the storm water treatment project in Deerwood.
Let’s keep our chins up and enjoy the lake in August and September regardless of Mother Nature. See you on the lake.
– Lee Uglem, SLA President

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Our SLA Prexy at the Boat Parade

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2016 July 4th Boat Parade

9 enthusiastic boats participated in the 4th of July Boat parade sponsored by the Serpent Lake Association.

The coveted traveling Paddle Trophy was captured by the Chura clan with their Harry Potter themed boat. Honorable mention went to the Stanton’s First Avenue float featuring Prince and Purple Rain! Thanks to all who participated and cheered from the shore. Hope you can join us next year!

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