7873fa0f_Board_Meeting_Minutes_1_10_01__Response__abridged_
[Questioner] Jeff Cange [Question] When were actions for mercury abatement begun? [Response (abridged)] 
They were begun the early 1980s and continue to the present, although activities have diminished as mercury levels have dropped.
Board Meeting Minutes 1/10/01
Response (abridged)