Drying times are based on USGS/Illinois DNR guidelines for zebra mussel veliger survival.
| Time of Year |
Drying Days |
| February |
28 days (3 days if continually frozen) |
| March |
18 days |
| April |
11 days |
| May-September |
5-7 days |
| October |
11 days |
| November |
28 days (3 days if continually frozen) |
| December-January |
28 days (3 days if continually frozen) |