|
It is my information that the aquatic plant study will be done privately. Deb Konkel (DNR) and I completed one of � the lake in August 2004, before I was informed that a private study would be done. Thus, our current information would be incomplete. During one of the summer water sampling times, I was taken by boat around the shores of the lake in order to map lakeshore protection & erosion. I marked a parcel map that I had compiled. A sample draft map has been sent to Buzz Sorge (DNR) for his review. Once any changes he suggests are made, the lakeshore protection/erosion map will be completed and computerized. I completed parcel maps of the surface watershed during 2004. A surface watershed land use map has been completed and computerized, including 2004 percent of land uses. Ground watershed maps should be completed during winter 2004, allowing me to do ground watershed land use map in the spring of 2005. Once the ground watershed has been determined, random well water sampling will be done in 2005 and 2006. Initial investigation regarding endangered and threatened species has been completed. I have not yet been able to arrange access to the DNR information, but am in the process of doing so. I have already identified what endangered and threatened species are found in Adams County. Background research on invasives (new and old) has been completed in 2004. I had contact with Todd Kittel (DNR), who will forward the most recent DNR invasive locations to me as soon as it is available. Computer mapping will then be completed. Cultural resources and state natural heritage areas have also been investigated in 2004. I�ve had contact with the Ho-Chunk Tribe, the Wisconsin Historical Society and the Adams County Historical Society already. I will be getting mapping information from them during winter 2004. State Natural Heritage Areas have been identified, but will not be computer mapped until during winter 2004. Sensitive area evaluation will be done during summer 2005, as will upland habitat evaluation. These areas will be computer mapped during winter 2005. Wetland areas have been paper mapped, but will not be computer mapped until during winter 2004. Geological information has already been obtained, and outstanding waters have been computer mapped in 2004. Initial fisheries information has been obtained; updated information will be provided during winter 2004. Computer modeling to determine watershed effect on the lake will be done in 2006. The modeling will be based on all the information obtained as described above. Prepared by Reesa Evans, Adams LWCD, 11/3/04 Edited by Chris Murphy, 11/5/05 WATER SAMPLING IN 2004 I have an excel spreadsheet outlining all the background information I have obtained on Jordan Lake, including DNR testing done back to 1993 and self-help monitoring data back to 1986. The amount of information available varies greatly from year to year. As part of our study of Jordan Lake in the Lake Classification Grant, Adams LWCD started a regular monitoring program to be done from 2004-2006. Due to some equipment deficiencies, I wasn�t able to do the winter sampling, through the ice, in early 2004. This process involves traveling to one of the deep holes of the lake and drilling a hole through the ice. The ice depth is measured and recorded. The water monitor owned by Adams LWCD is used to record temperature (Celsius), pH, salinity, conductivity, and dissolved oxygen levels at various depths, starting at 3�. The winter sample sent to the lab for testing is an integrated water sample. This involves using a 6� PVC pipe lowered in the water, letting it fill, then pulling it out. Three samples are taken out of the pipe: one is filtered into a plastic bottle with sulfuric acid as a preservative; one is put into a plastic bottle with sulfuric acid, but not filtered; one plastic bottle is filled with water unpreserved and unfiltered. All 3 bottles are taken to the lab at UWSP for testing. The fall turnover samples will be taken during mid-November in 2004. The spring turnover samples were taken mid-April. The procedure for it and the is similar to that outlined for the winter sampling, except that no ice is involved and Secchi disk (water clarity) readings are taken in the spring and fall! The same type samples are taken to UWSP for testing. Sampling during the summer is different. The plan was to take 5 samples from late-June to September every year. In 2004, due to the late cool spring, we were advised to delay starting the sampling. Three sets of samples were taken in 2004 during the warmer months. For 2005 five sets will be completed. To make up for 2004, five sets of samples will be taken in 2006. The testing procedure for the warmer months involves using the water monitor to record temperature (Celsius), conductivity, salinity, dissolved oxygen and pH. A lake as deep as Jordan lake stratifies during the warm months, i.e., the water layers itself into roughly 3 layers: epilimnion (top layer), metalimnion (middle) and hypolimnion (bottom). Using temperature change and dissolved oxygen change as guides, samples are taken from each layer using an Alpha Bottle (a bottle which permits closing a water sample from a depth & sealing it until it reaches the top). 3 bottles from each layer are prepared as outlined above. The top layer is also filtered through an additional testing to gain a sample of chlorophyll a. The amount of chlorophyll a present is closely related to the number of algae present. This means there are 9 bottles (3 from each layer) and one foil-wrapped filter from the lake for each summer sampling delivered to the lab at UWSP. Secchi disk readings are also taken each time in the summer. Return to Notices page. |