Freshwater's list isnt the endall beall, you need to rely on the FCC's list.
WZUM IS on the FCC's Silent list. I just checked, but WPGR is not
However, WPGR does have an STA to be silent:
https://licensing.fcc.gov/cgi-bin/ws.exe/prod/cdbs/forms/prod/cdbsmenu.hts?context=25&appn=101333213&formid=9
Hi All:
We've done a good bit of travelling the past two weeks taking children and
their stuff home from college & to summer jobs. Noted that the 1350 Peoria and
1510 Pittsburgh are still off. 1510 had what sounded like a dial tone from one
end ot the Pittsburgh area to the other. Also noted
