Lake Manager’s Report – May 2017
Randy Stowe, firstname.lastname@example.org
1. The MPOA dredging contractor has re-mobilized, and based on field observations today, it would appear that the Wickline Island dredging should now be complete.
2. Over the next few days, they will re-position to complete the areas still needing to be dredged at O’Brien Shoals, as shown below. Based on the current position of the sediment pipeline, they plan to work from south to north. They will be at O’Brien Shoals for the remainder of May, and possibly longer, depending on the type of lakebed material they encounter, before moving down to South Bay. The MPOA will post additional info on the MPOA website as we receive it.
3. Lakefront landowners in proximity to O’Brien Shoals dredging areas are asked to not install their piers if they extend more than 20 feet from shore until the dredging is complete in that area or the extent of dredging conducted in that area will have to be reduced.
4. Lake users need to be aware of rapidly changing lake conditions as the dredging contractor will be re-positioning the sediment pipeline, booster pumps, and other dredging-related equipment as they progress. Avoiding those areas of the lake is the best bet, when possible. The dredging contractor has placed additional weights on the sediment pipeline at the designated crossing point (which will hopefully minimize the rise and fall of the pipeline) and has added red marker lights on top of the “no-wake” buoys on either side of the crossing point. As in the past, only use this crossing point at the mid-point at a no-wake speed, utilizing your tilt mode if applicable.
5. I have been participating in a five week water quality monitoring project. I take a Nippersink Creek water sample at Thompson Road every Wednesday and use testing strips to identify the levels of atrazine and simazine (pesticides) and nitrate/nitrites and phosphate (nutrients). No elevated levels of any of nitrate/nitrites or phosphate have been detected to date, and no atrazine or simazine has been detected at all.
6. There have been concerns raised about the number of cormorant’s present on Wonder Lake, and the potential impacts of them roosting on the various islands. If present in sufficient quantities, the “droppings” from cormorant’s roosting in trees can actually eventually kill off those trees. This is a particular concern on Strom Island, where the survival of large oak trees and on-going restoration efforts could be threatened. Dennis Gallo and I met with an IDNR Wildlife Biologist today to determine what options exist to discourage cormorants, and minimize adverse impacts. We will continue to work with IDNR to develop a management plan.
7. We continue to move forward with the IEPA Section 319 grant projects, including the MPOA’s pending project to install shoreline protection around Strom and Yacht Club Islands. We have already received the County Stormwater permit, and will be meeting with the U.S. Army Corps next week to review the application that has been submitted to them. It is hoped that this project can completed in 2017. Additional 319-funded projects are also being pursued with individual landowners around Wonder Lake as well.