Many cases begin with a pattern that sounds familiar in the South Puget Sound area:
- Yard and property spraying after seasonal growth—especially when concentrate products are mixed and applied more than once.
- Landscaping or grounds work where herbicides are applied around walkways, retention areas, or fence lines.
- Secondhand exposure—residue brought into the home on work clothing, boots, or equipment.
- Community proximity—living near properties where herbicides are applied during routine maintenance cycles.
In Puyallup, people also tend to spend time outdoors year-round, so they may only connect the dots later—after a diagnosis prompts a closer look at what was used, when it was used, and what protection (if any) was worn.


