USGS Presents 2018 State of the Lake

On February 13, 2018, Dr. Dale Robertson of the U.S. Geological Survey (USGS), presented the USGS’s annual “State of Big Green Lake” to the GLSD Board of Commissioners at the regular board meeting of the GLSD. A summary of the USGS’s key updates are provided below. USGS general conclusions for 2017: • On a positive note, over the past twenty years, the percentage of phosphorus coming into our lake via various forms (streams, runoff, etc) has decreased by 25% from 0.134 mg/L (1997-1998) to ...
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Big Green Lake Impairment Status

What is the Big Green Lake impairment? Big Green Lake was listed as impaired in 2014. The impairment is for unacceptable levels of Dissolved Oxygen at the lake’s Thermocline. The Thermocline is the area of the lake where the warm water meets the cold water, this is generally at a depth of 30 to 50 feet down from the water’s surface. The State of Wisconsin lists the primary cause of this impairment as too much phosphorus in our lake. Why is the Big Green Lake Impairment Important? Some peopl...
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Conservancy Properties Undergoing Big Changes

Spring Burning Thanks in part to a great turn out by volunteers, the GLSD has been able to complete prescribed burns on several Conservancy properties. Spring burning of these natural areas is critical to promoting native vegetation while helping to limit and sometimes kill new buckthorn growth. It is a low cost but very effective strategy in controlling buckthorn seedlings. Burns have been completed at Winnebago Trail Conservancy, Sunnyside Conservancy, Norwegian Bay Wetlands, and the Tuleta ...
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About GLSD

The Green Lake Sanitary District, which is located in Green Lake County, Wisconsin, was established in 1964 and includes all of the existing areas around the lake (excluding the City of Green Lake). The District was formed as a means to protect Big Green Lake and its associated resources with respect to sanitation and related land, air and water quality matters. In addition to coordinating solid waste collection in parts of different Townships, the District also oversees the treatment of wast...
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Amped Up Weed Harvesting Efforts

Together with our partner organization, the Green Lake Association, the Green Lake Sanitary District is providing short-term relief to Green Lake's weed problems through the purchase of a second weed harvester. That means twice as frequent weed harvester visits and fewer weeds that tangle up swimming and boating.
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GLSD is implementing DNR approved lake management plan (LMP)

In February of 2013, the GLSD and it's partners received DNR approval for a comprehensive lake management plan (LMP). Since the approval, extensive LMP activities have started and some have already been completed. Millions of dollars are committed to this effort and the lake is being protected and on a steady course of improvement to be enjoyed by future generations. Read more about the lake management plan...
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GLA Virtual Watershed Tour Now Live

The Green Lake Association, GLSD's partner organization, has created a virtual watershed tour to give you a spatial understanding of Green Lake’s watershed and a visual experience of exploring the watershed, including its tributaries which are sometimes difficult to locate and navigate. It includes video highlights of the watershed’s special features, tributaries, and the challenges it faces. Experience the virtual watershed tour
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