Two non-profits established to preserve local public radio service made some progress last week. Wasatch Public Media completed the purchase of Salt Lake City’s KCPW-FM, long time sister station to KPCW in Park City, and Rhode Island’s attorney general set some conditions in approving the pending sale of WRNI-AM. Buyer Rhode Island Public Radio took over operations of the state’s two AM pubradio outlets last month under agreement with the seller, Boston University’s WBUR.