1998 3.4L Engine and Freeze plugs

My 1998 Olds Silhouette with 3.4L Engine is shooting water out somewhere from the block/heads under the front heat shield. Are there freeze/expansion plugs located under there that may have blown or rotten out? My Haynes manuals says nothing about freeze plugs.

Note: There is no signs of antifreeze in the oil when I checked the dip stick.