Thanks FishnfellaS for your reply.
Here's what I came up with from the County of Snohomish, Surface Water Management Division, Mr. Gene Williams:
All land surrounding Ebey Lake is privately owned. The lake itself is not owned by any individual and is open to the public if you can get there.
Technically, you are trepassing if you walk to it. The only option is to get permission.
Note:One fish limit, min. 18" trout