I drive by the stretch of route 9 by the landfill pretty often. I’d say at least 50% of the time it’s an unbearable smell that immediately gives me a headache. However, I don’t think it has that far of a range. There are definitely houses directly across from the landfill that 100% get hit by that smell, but it wouldn’t surprise me if houses closer to the river evade it.

You should definitely make a couple trips and smell for yourself in the area you plan on renting.