Iowa State University is conducting the Diagnostic Feasibility Study on North and South Twin Lakes. So far this year, they have sampled on three dates. This is the update from Chris Filstrup:
· January 26 – We sampled both lakes for under-ice conditions. We extracted a sediment core from North Twin Lake for pollen analysis. We were unable to collect a sediment core from South Twin Lake because water kept freezing in the core barrel. This is the same day that we had blizzard warnings, and we experienced 60 mph wind gusts and white out conditions when we had to discontinue samples.
· March 12 – We sampled streams and drains in the watershed to collect the spring flush. Unfortunately, most drains were not flowing because the little snow melt available was absorbed by the soils. We were not able to sample the lakes due to poor ice conditions, which we anticipated.
· April 3 – We sampled the lakes, streams, and drain sites. We installed depth data loggers to develop discharge rating curves for inflows and outflows. These will be used to calculate water and nutrient budgets.
· May – We plan to sample the lakes and watershed sites. We anticipate sampling every three weeks, unless we have a storm event that needs to be captured.
They likely will not be able to have a public (TAT) meeting until mid- to late summer. This would not prevent them from sending out an invitation to stakeholders within the watershed to determine who is interested in participating.