In and around Napa, many people encounter herbicides through everyday routines—not just through “direct spraying.” Common local scenarios include:
- Property and vineyard-adjacent landscaping: seasonal weed control along fences, driveways, and paths where overspray or residue can drift.
- Work crews and industrial maintenance: groundskeeping, facility maintenance, and contractor work where herbicide application is part of the job.
- Secondhand exposure at home: contaminated work clothing, boots, tools, or equipment brought into garages and living spaces.
- Tourism-adjacent properties: hotels, tasting rooms, and venues maintaining outdoor grounds during peak visitor seasons, often requiring frequent vegetation control.
These situations matter legally because they help establish how exposure occurred, when it occurred, and what products were involved.


