Aspect performed four studies in WRIA 16/14B for the Planning Unit. The studies include a hydrogeologic investigation of the Dosewallips Brinnon area, an instream flow study, a hydrogeologic investigation at the Webb Hill biosolids facility, and a river/stream impairment analysis. These projects used methods ranging from use of stable isotopes for hydrogeologic characterization to a development of a GIS database and tool that allows for future updates and use by project stakeholders.