In May 2018, the Delta Science Program (DSP) and the San Francisco Estuary Institute-Aquatic Science Center (SFEI-ASC) held a stakeholder workshop to discuss the nutrient-related effects of an upcoming major upgrade to the Sacramento Regional County Sanitation District's Wastewater Treatment Plant (WWTP, hereafter Regional San). The purpose of the workshop was threefold: (1) to inform managers and scientists about scientific efforts underway to understand the impacts of the upgrade on water quality and the environment of the northern San Francisco Estuary (nSFE); (2) to solicit stakeholder input on a framework developed to identify and explore potential nutrient-related responses to the upgrade in downstream habitats; and (3) to capture data and knowledge gaps, and discuss the relative merits of potential studies that could inform nutrient-related management decisions. In order to encourage discussions on science and policy that is inclusive, responsive, transparent and mutually relevant, workshop participants included stakeholders, scientists, managers, decision-makers, and other interested parties. This memo describes the workshop and subsequent surveys, and summarizes key messages gathered about nutrient-related science priorities.