BIG ROUND LAKE PROTECTION AND REHAB DISTRICT: Sediment & Core Analysis Project

Purpose

The Big Round Lake Protection and Rehabilitation District will conduct a project to analyze a sediment core from the deep area of Big Round Lake. The analysis of this sediment core may help to evaluate the history of water quality in the lake and possibly help in making the following determinations: 1) Determine impact of installation of the dam on the lake's ecosystem. 2) Determine changes in nutrients during the last 130 yrs. 3) Determine if the frequency of algal blooms has increased during the last century, and 4) Determine if the macrophyte growth has changed during the last century. Project deliverables include a final report detailing the findings of the core analyses and a listing of any past significant water quality or lake ecosystem "changes" that are revealed from this analyses. The project results will be disseminated to the public by newsletter(s), public meeting(s), and local newspaper articles. This scope is intended to summarize the detailed project scope provided in the application and does not supersede those application tasks/deliverables. Data, records, and reports, including GIS-based maps and digital images, must be submitted to the Department in a format specified by the regional Lake Coordinator. Grantee or consultant shall provide DNR Lake Coordinator with a draft for comment on report adequacy prior to making final payment to the consultant. DNR shall receive both paper and electronic copies of the final report along with, or prior to submission of grantee's final payment request.

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Lakes Grant
Small Scale Lake Planning
SPL-136-07
2007
Complete
 
Reports and Documents
PUB-SS-1034 2007. Final Report. "A sediment core was collected from the lake on 28 September 2006...The core was dated by the 210Pb method and the CRS model used to estimate dates and sedimentation rate. The diatom community was analyzed to assess changes in nutrient levels and changes in the macrophyte community and geochemical elements were examined to determine the causes of changes in the water quality."
 
Activities & Recommendations
Grant Awarded
The Big Round Lake Protection and Rehabilitation District will conduct a project to analyze a sediment core from the deep area of Big Round Lake. The analysis of this sediment core may help to evaluate the history of water quality in the lake and possibly help in making the following determinations: 1) Determine impact of installation of the dam on the lake's ecosystem. 2) Determine changes in nutrients during the last 130 yrs. 3) Determine if the frequency of algal blooms has increased during the last century, and 4) Determine if the macrophyte growth has changed during the last century. Project deliverables include a final report detailing the findings of the core analyses and a listing of any past significant water quality or lake ecosystem "changes" that are revealed from this analyses. The project results will be disseminated to the public by newsletter(s), public meeting(s), and local newspaper articles.
Grant Awarded
The Big Round Lake Protection and Rehabilitation District will conduct a project to analyze a sediment core from the deep area of Big Round Lake. The analysis of this sediment core may help to evaluate the history of water quality in the lake and possibly help in making the following determinations: 1) Determine impact of installation of the dam on the lake's ecosystem. 2) Determine changes in nutrients during the last 130 yrs. 3) Determine if the frequency of algal blooms has increased during the last century, and 4) Determine if the macrophyte growth has changed during the last century. Project deliverables include a final report detailing the findings of the core analyses and a listing of any past significant water quality or lake ecosystem "changes" that are revealed from this analyses. The project results will be disseminated to the public by newsletter(s), public meeting(s), and local newspaper articles.
Monitor Paleocore
One core collected from Big Round Lake with a piston core. Diatom analysis was done.
 
Watershed
 
Waters