I was looking at the Sherburne County VHF frequencies and I noticed that they are licensed for VFIRE23, 154.070 and 154.175. I know that 154.175 was their legacy VHF fire frequency and it appears that 154.070 was licensed somewhat more recently. https://wireless2.fcc.gov/UlsApp/UlsSearch/licenseFreqSum.jsp?licKey=1194220