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Paterson Lake residents urge nonchemical options as steering committee considers herbicide treatments
Summary
At a Thurston County meeting, a resident urged county officials to avoid using conditional-status herbicides (imazapyr and endothall) in Paterson Lake and recommended manual harvesting or ground sheeting instead, citing county environmental-health assessments that list those chemicals as conditional for use.
Brett Trowbridge, speaking during public comment on Feb. 18, urged Thurston County officials to reject proposed herbicide treatments for a channel in Paterson Lake and to favor mechanical or manual harvesting instead.
Trowbridge said the county's own environmental-health assessment categorizes imazapyr and endothall in a…
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