The Sources, Pathways, and Loadings (SPL) Workgroup (WG) is one of the five active workgroups within the Regional Monitoring Program for Water Quality in San Francisco Bay (Bay; RMP). The Workgroup produces recommendations for collection, interpretation, and synthesis of data on sources , pathways, and loads of pollutants to guide water quality regulation and management. 

The goal of this SPLWG Strategy Update is to reflect the changing needs of the RMP and to stay relevant to changing regulatory and management drivers. This document will be updated periodically, or as needed.

 The SPLWG management questions (MQs) were revised in 2024 and are as follows. 

● MQ1: What are the sources, pathways, and loadings of pollutants and sediment to the Bay? 

● MQ2: Which are the priority sources and pathways of pollutants that adversely impact or potentially adversely impact the Bay’s environmental quality? 

● MQ3: What are the management actions that could be implemented in the region to address pollutant pathways and sources, and where would they have the greatest benefit? 

● MQ4: Are levels of individual pollutants or pollutant classes changing over time in the sources, pathways, and loadings? What factors or management interventions have contributed to the change?