Your POA received the following information from the DNR regarding hydrilla treatments...
"The third Deep Creek Lake hydrilla treatment is scheduled to take place Tuesday, July 25. Treatment is subject to change due to conditions and weather (as always).
Follow-up emails will notify you of changes to the proposed date(s). We will provide as much advance notice as possible, but please understand that changes can be caused up to the last minute due to unforeseen circumstances.
An overview of 2017 plans is available here.