The Christiansburg well, in the western part of the state, also shows regular, but small, changes caused by tides.
--from your link
I often wondered if freshwater was affected by tides, but this shows that even groundwater is affected.
RICHMOND, Va. - The South Asian earthquake that spawned deadly tsunami waves also shifted water levels by at least 3 feet in a geologically sensitive Virginia well some 9,600 miles away from the epicenter, researchers say.
Wells