Fearing the "Plot Dump"

Even though my days seem full and the yard work that needs to be done is embarrassingly large, I still have found time to write a page of my third novel, pretty much every day. Much of what I am doing is "exposition" -- setting up characters or situations in the plot for later resolution and/or action.

Because this first chapter seems so long, I fear that I am guilty of a "plot dump," although I am hoping that it is really an "info dump," which is a less sneering appraisal. Here is an example of character dialogue one should avoid:

Joe: Who's at the door?

Mary: Oh, it's my uncle, who was released from prison yesterday after serving ten years for stealing the family jewels from this very house, although the jewels themselves have never been found and are rumored to be buried in a secret chamber guarded by the ghost of my late grandmother.*
* quoted from "the Free Dictionary by Farlex"

I have not re-read my writing so far, but ... could be. Let's hope for info dumping, instead of the above.

Over 10,000 words and counting.