A study built around
the actual application.

A question about the water.

The 2022 UC Davis-led proposal, with USGS and Central Valley Water Board collaborators, asked whether forestry protections adequately protected waters affected by post-fire herbicide applications. It proposed comparing grab, active, and passive sampling.

Source: Full proposal, printed pp. 4 and 12 ↗

Use applications to guide sampling.

Application notices would inform sampling locations and timing. Herbicide detections and concentrations would be compared with use data. Water Board staff would coordinate with landowners and track notifications.

Source: Full proposal, printed pp. 4, 6 and 12 ↗

Understand the historical context.

The authors described gaps in the forestry rules they assessed in 2022. That is their historical assessment, not a claim here that every provision remains unchanged today.

Source: Full proposal, printed pp. 2 and 11 ↗

How CWMP builds on the approach.

CWMP’s own mission is to test and monitor California’s waters for herbicide runoff from forestry projects. We want to connect findings to actual treatment sites, investigate the source, and publish the supporting evidence.

The application database, a timely notification network, local sampling volunteers, and scientific contributors all serve that purpose. Our goal is to make the connection between what was applied and what was measured a central part of the investigation—not an afterthought.

CWMP is independent. Referencing this proposal does not imply that its authors or participating agencies are CWMP partners, or that the proposed study produced CWMP findings.