Committee members questioned whether modeled field practice estimates align with monitored stream loads. Presenter Mike Gilbertson explained reductions come from field models (e.g., SnapPlus) and partner reporting while USGS stream monitoring provides a different, complementary dataset.

DNR and Marquette County staff described a monitoring program of eight sites and monthly samples, explained phosphorus assessment thresholds and outlined farmer outreach including SnapPlus nutrient‑management training and cover‑crop demonstrations to reduce loads.