I've noticed that people from the Washington, Oregon area tend to omit "to be" when describing something that needs to be completed. For example, just today one of my consulting engineers sent me an update on a construction project wherein he stated, "The raw water line still needs tested." He did not make a typo. Is this just a grammatical form used by folks in this area?
Being former military, I've lived in several states throughout the Midwest, South of the Mason Dixon line and west of the Mississippi. I've come across the omission of "to be" in each state I lived. Although It does seem to creep up it certain circles more than others.
I think, and this is only an opinion, that the omission is more of an endeavor to be succinct.