Alerts
There are currently no park alerts for Grundy Lake
Beach Postings
A "posting" is an indication of elevated bacteria levels in the water, not intended as an indication of operational status.
| Beach Name | Sample Date | Posted |
|---|---|---|
| Main Beach | June 3, 2026 |  |
| Balsam Beach | June 1, 2026 | |
| White Birch Beach | June 1, 2026 | |
| Red Maple Beach | June 1, 2026 | |
| Poplar Beach | June 1, 2026 | |
| Trailer Beach | June 1, 2026 | |