Unid talkgroups on OPPD

[KF0SKV]

Does anybody have info for the following talkgroups over OPPD/Elkhorn Tower-1520, 1519, and 1515. They have been showing up on my PRO96 this week, sounds like linemen over 1515 and 1520 and meter readers over 1519, but not listed in the database for ORIN.