Table 1. Summary of TERRA-PNW projects that have been combined into the dataset.

Project	Year	Number of…	Key references
		Sites	Genera	Species	Branches
The primary sampling year and key references are provided for each project, as are number of sites, genera, species, and branch samples.
RADAR	1999	20	—	—	—	Law et al.6
EPA	2001	90	19	24	562	Law et al.7
COHO	2002	3	5	5	86	Schwarz et al.8
ORCA	2004	73	13	18	397	Law et at.9
METOFIRE	2007	64	2	2	88	Meigs et al.11
CADIS	2014	15	4	6	163	Berner & Law12