After a June 6 vote by the Washington state Forest Practices Board, a new rule could lead to 200,000 acres of private forestland across the state going out of production and being left to grow. A report from the Washington Department of Commerce suggests the rule could cost Lewis County more than $350 million in lost lumber revenue. The proposed rule calls for a major expansion of buffer zones around non-fish-bearing streams. Called riparian buffer zones, they are places where trees must be left to shade streams and keep them cool. …The divisiveness of the new rule was apparent in the board room not just during the vote but for hours of public comment and discussion between board members beforehand. …Many who testified against the new rule were small forestland owners, who the Department of Ecology says will be the most impacted by the new rule.