
WASHINGTON – A recent report from the US Geological Survey highlighted a decline in pesticides in the nation’s water over the past 30 years. However, experts caution that the study does not provide the full picture, particularly for rural Washington residents who rely on private wells.
Cherilyn Peterson, a staff ecologist at the Northwest Center for Alternatives to Pesticides, pointed out that the study only tracked 22 chemicals, many of which are being phased out. She noted that highly toxic replacements, such as glyphosate, 24D and neonicotinoids, were not included in the analysis.
“Many of the most commonly used chemicals that we see in the Pacific Northwest…weren’t even part of the analysis which I thought was really surprising,” Peterson said.
Peterson argued that Washington lawmakers need to address the issue by gathering more comprehensive data, including testing for currently used chemicals. She emphasized the importance of reducing pesticide use to protect groundwater.
“Both Oregon and Washington already have really strong organic and regenerative sectors. They’re not just environmentally responsible but they’re very economically successful,” Peterson said.
Peterson also stressed the importance of focusing on municipal pesticide use. Seattle took a significant step by largely restricting the use of Roundup on public land back in 2019.


