"VARIABLE" "DESCRIPTION" "SAMPLE_TYPE" "UNITS" "RANGE_LOW" "RANGE_HIGH" "LEGAL_VALUES" "AGGR_ECO9_2015" "NARS 9-level reporting region (2015), based on aggregated Omernik Level III ecoregions: CPL=Coastal Plains; NAP=Northern Appalachians; NPL=Northern Plains; SAP=Southern Appalachians; SPL=Southern Plains; TPL=Temperate Plains; UMW=Upper Midwest; WMT=Western Mountains; XER=Xeric West." "BEDSED_COND" "Bed sediment condition, based on log relative bed stability (LRBS_use)" "PHAB" "" "Good|Fair|Poor|Not Assessed" "DATE_COL" "Date of field collection" "INSTRMCVR_COND" "Instream cover condition, based in log natural fish cover (L_XFC_NAT)" "PHAB" "" "Good|Fair|Poor|Not Assessed" "L_XCMGW" "Log sum of Woody Canopy+Mid+Ground layer areal cover proportion used for condition" "PHAB" "" "" "L_XFC_NAT" "Log sum of non-anthropogenic fish areal cover types used for condition" "PHAB" "" "" "LRBS_USE" "Log relative bed stability to use in assessing BEDSED_COND, filled in from other variables as needed" "PHAB" "" "" "RIPDIST_COND" "Riparian disturbance condition, based on W1_HALL" "PHAB" "" "Low|Medium|High|Not Assessed" "RIPVEG_COND" "Riparian vegetation condition, based on L_XCMGW" "PHAB" "" "Good|Fair|Poor|Not Assessed" "SAMPLE_TYPE" "Sample type" "SITE_ID" "Site identification code" "UID" "Unique site visit ID" "VISIT_NO" "Visit number for that year" "W1_HALL" "Human Disturbance Index(distance-wtd tally of types and presence used for condition" "PHAB" "" "" "YEAR" "Sampling year"