"VARIABLE" "DESCRIPTION" "SAMPLE_TYPE" "UNITS" "RANGE_LOW" "RANGE_HIGH" "LEGAL_VALUES" "FW_ECO3" "Three climatic regions of the US used in WSA in indicator development: Eastern Highlands, West, and Plains and Lowlands" "FW_ECO9" "Aggregated level 3 ecoregions used in WSA" "IS_DISTINCT" "DISTINCTNESS OF TAXON WITHIN SAMPLE" "RT_NRSA" "Reference/So-so/Trashed designations for sites used in NRSA" "SAMPLE_TYPE" "Sample type" "SITE_CLASS" "Site class (NAWQA, PROB, HAND)" "SITE_ID" "Site identification code" "TARGET_TAXON" "TAXANAME AT TARGET HIERARCHICAL TAXONOMIC LEVEL" "TAXA_ID" "Taxonomic ID number" "TOTAL" "TOTAL NUMBER OF INDIVIDUALS COUNTED" "UID" "Unique site visit ID" "VISIT_NO" "Visit number for that year" "YEAR" "Sampling year"