My bad. Somehow I got 'creepmeters' on my mind and only checked for those dates.

But, looking again this time carefully, I see two types of strainmeters - dilatometer and tensor strainmeter.

There are three tensor strainmeters that go back to Jan 1988. Stations Eades (EDT), Frolich (FDT), and Donna Lee (LDT). But notes indicate that Eades "ceased working Apr. 2002" and Frolich "ceased working; second gage in Dec 2005".

Maybe Donna Lee will show something?

Info on instruments where I learned of each type...
http://earthquake.usgs.gov/monitoring/deformation/data/instruments.php

Brian