I have some doubts that "WWVU" is the correct identifier of the communications equipment that was once located at this site. AT&T Long Lines sites usually used city names or location-based identifiers. “WWVU” is actually the FCC call sign for WVU’s student-run FM radio station U92 “The Moose” (91.7 MHz). That FM transmitter is located near Mountaineer Middle School. It seems unlikely they both share the same identifier.

I have visited this site in person and unfortunately there is no evidence of any communications equipment having been at 39.647052698554, -79.9747447459589. No evidence of tower structure or shelter buildings. However, looking at the 1997 google earth aerial photos there is clearly a white circle and gray rectangle object at 39.647052698554, -79.9747447459589. Although not conclusive, this discovery encouraged me to keep searching for answers. I then spend a few hours searching the web of old pictures of WVU's Evansdale campus and the PRT system. After four hours of searching I found two absolute gems at nycsubway.org. I tried to upload them to this page, but I am not certain that it worked. Communications equipment absolutely DID exist at 39.647052698554, -79.9747447459589 near WVU's Engineering Sciences Building. It looks like there was a parabolic dish antenna possibly C-band or Ku-band satellite at this site.

Although it is technically possible this was an ATT long lines site, This seems unlikely as Long Lines sites typically had horn or microwave dishes mounted on taller towers. I also feel that this dish was too small to have been an earth station. Additionally, this page claims "WWVU" was linked to the "Morgantown" (Ridgedale) tower. Morgantown tower would be to the southeast. The dish at 39.647052698554, -79.9747447459589 seems to be aimed more southwest; towards Fairmont. Misaligned by Aprox. 45 degrees.

TL;DR
There absolutely was communications equipment at 39.647052698554, -79.9747447459589.
"WWVU" was probably not the identifier of the equipment located at this site.
It seems unlikely this equipment was related to ATT's long lines service.