PARAMETER	DESCRIPTION	SAMPLE_TYPE	UNITS	RANGE_LOW	RANGE_HIGH	LEGAL_VALUES
AG_ECO9_NM	NARS 9-level reporting region Name	DESIGN				Text names
AG_ECO9_NM	NARS 9-level reporting region name Text names. No missing values allowed.	DESIGN				
COMP_PT	Metric score for composition metric	BERW		0	10	Good|Fair|Poor|Not Assessed
COMP_PT	Metric score for composition metric	BETB		0	10	Good|Fair|Poor|Not Assessed
DATE_COL	Date of data collection in field	VERIF				
DIVS_PT	Metric score for diversity metric	BERW		0	10	Good|Fair|Poor|Not Assessed
DIVS_PT	Metric score for diversity metric	BETB		0	10	Good|Fair|Poor|Not Assessed
FEED_PT	Metric score for functional feeding group	BERW		0	10	Good|Fair|Poor|Not Assessed
FEED_PT	Metric score for functional feeding group	BETB		0	10	Good|Fair|Poor|Not Assessed
HABT_PT	Metric score for habit	BERW		0	10	Good|Fair|Poor|Not Assessed
HABT_PT	Metric score for habit	BETB		0	10	Good|Fair|Poor|Not Assessed
INDEX_VISIT	Index visit Y/blank	VERIF				
LAT_DD83	Latitude (based on NAD83 datum) for stream site  from NHD-based sample frame.	DESIGN				Numeric
LAT_DD83	Latitude (based on NAD83 datum) for stream site  from NHDPlusV2 Numeric. No missing values allowed.	DESIGN				
LON_DD83	Longitude (based on NAD83 datum) for stream site  from NHD-based sample frame.	DESIGN				Numeric
LON_DD83	Longitude (based on NAD83 datum) for stream site  from NHDPlusV2 Numeric. No missing values allowed.	DESIGN				
METRIC_TAXA_ROOT	"Taxonomic level used in calculation of metrics: WSA=taxonomic aggregation used in WSA-based NRSA MMI,LOWEST=NRSA target taxonomic level"					
METRIC_TAXA_ROOT	"Taxonomic level used in calculation of metrics: WSA=taxonomic aggregation used in WSA-based NRSA MMI,LOWEST=NRSA target taxonomic level"					
METRIC_TAXA_ROOT	"Taxonomic level used in calculation of metrics: WSA=taxonomic aggregation used in WSA-based NRSA MMI,LOWEST=NRSA target taxonomic level"					
MMI_BENT	Benthic MMI score	BERW		0	100	Good|Fair|Poor|Not Assessed
MMI_BENT	Benthic MMI score	BETB		0	100	Good|Fair|Poor|Not Assessed
OE_SCORE	O/E score for benthic sample	BERW		0		
OE_SCORE	O/E score for benthic sample	BETB		0		
PSTL_CODE	State two-letter postal code	DESIGN				
PSTL_CODE	"State two letter postal code 50 state postal codes plus AS, MP, GU, PR, VI for American Samoa, Commonwealth of Northern Marianas, Guam, Puerto Rico and Virgin Islands.  No missing values allowed."	DESIGN				
PUBLICATION_DATE	Date of data file publication					
PUBLICATION_DATE	Date of data file publication					
PUBLICATION_DATE	Date of data file publication					
RICH_PT	Metric score for taxa richness	BERW		0	10	Good|Fair|Poor|Not Assessed
RICH_PT	Metric score for taxa richness	BETB		0	10	Good|Fair|Poor|Not Assessed
SAMPLE_TYPE	Sample type					
SAMPLE_TYPE	Sample type					
SAMPLE_TYPE	Sample type					
SITE_ID	Site ID	VERIF				
SITE_ID	"Site ID for the study and year sampled.  Preferred form is NRSnn_MM-xxxxx  where  nn is current cycle year (04, 08, 13, 18, etc), MM is two letter state code, and xxxxx is between 10001 and 99999. Text.  No missing values allowed."	DESIGN				
SITETYPE	Site type (Probability-based or hand-picked)	DESIGN				PROB | HAND
SITETYPE	"Site type (Probability-based or hand-picked).  PROB for sites from probability survey.  Usually HAND for hand-picked sites.  In EMAP West and WSA, STARHAND is used to identify hand-picked sites that do not have all CORE indicators available."					
TOLR_PT	Metric score for tolerance metric	BERW		0	10	Good|Fair|Poor|Not Assessed
TOLR_PT	Metric score for tolerance metric	BETB		0	10	Good|Fair|Poor|Not Assessed
UID	Unique site visit ID					
UID	Unique site visit ID					
UID	Unique site visit ID					
VISIT_NO	Number identifying which visit this is	VERIF				|1|2
