OK. a long time ago, they were 159.165 PL 97.4. They they switched to 151.340 PL 88.5.
I see back in 2007, North Smithfield EMA got a new license, and used the old channel as their VHF rptr input (159.165). So EMA is 155.3775 Rptr (159.165 input).
According to Scan-ne.net website, the current for "North Smithfield DPW/Highway" is: 151.340 PL 97.4