Yes and no.
I've only owned the land since this past October, and when I was scouting the land and taking measurements in August-October the pond was about .9 acres, but after the wet winter, it is now about 1.85 acres. It has doubled in size (it is a groundwater pond, btw).

-Chris
1 acre pond
Currently managing:
FHM, GSH, GSF, BG, PS, RES, LES, YP, SMB, LMB, HSB, RBT, WE, CC, FHC, and Grass Shrimp