Why no Sulphur Smell at Scenic . . .

A question I often get from those who have been to Scenic is "How come there is very little rotten egg smell like other hot springs?" Often the pungent smell of Olympic Hot Springs is brought up in comparison. Scenic Hot Springs barely has any smell, whatsoever. Why?That rotten egg smell is the result of H2S, or hydrogen sulphide. As ground waters percolate downward and heat up, minerals are