The county came out and measured the water pressure.
It was 40 psi at the house and 100 psi at the curb.
Recommendation: Pressure Reducing Valve may need adjustment or
has failed.

Now is the the county's problem or mine. The guy just left a
note on my door, so I didn't get to ask him, and I found the note
late friday evening so I couldn't call.

If this is my problem, where is the valve located. I do think I
can adjust it, and probably replace it if it is b/w the main and
the house.

Advice?