"SAMPLE_TYPE"	"VARIABLE"	"LEGAL_VALUES"	"DESCRIPTION"
"EVALVIS"	"INDEX_AP"	"Y|N|NA"	"Index visit for Albemarle-Pamlico Study"
"EVALVIS"	"INDEX_NCCA15"		"Index visit for NCCA 2015 survey - applies to both estuary and Great Lakes sites that are part of NCCA"
"ENTE"	"ENT_1X_CCE_100ML"		"Final Value Enterococci CCE/100 mL: Estimated enterococci calibrator cell equivalents extrapolated to a 100 mL water sample."
"ENTE"	"ENT_1X_STV_COND"		">STV 1280 CCE/100mL Condition: =1 if estimated enterococci CCE/100mL exceed Recreational Water Quality Criterion statistical threshold of 1280 CCE/100mL; =0 if less than or equal to STV of 1280 CCE/100mL"
"ENTE"	"SAMPLE_VOL"		"Filtered water sample volume (mL)"
"DESIGN"	"PSTL_CODE"		"State (US) or Province (Canada) abbreviation"
"DESIGN"	"STUDY"		"Study name"
"ALGX"	"LAB"		"Lab that conducted analysis"
"VERIF"	"DATE_COL"	"|01|02|03|04|05|06|07|08|09|10|11|12"	"Date collected"
"VERIF"	"SITE_ID"	""	"Site id"
"VERIF"	"VISIT_NO"	"|1|2"	"Visit: 1/2"
"VERIF"	"YEAR"	""	"Year site visited"
"DESIGN"	"NCCA_REG"	"Northeast|Southeast|Gulf|West|Great Lakes|"	"National Coastal Condition Assessment Region.  Northeast includes states ME, NH, MA, RI, CT, NY, NJ, MD, DE, and VA.  Southeast includes NC, SC, GA, and east coast of FL.  No missing values allowed."
	"PUBLICATION_DATE"		"Date the dataset was published to the NARS site"
	"UID"		"Unique identifier for the site/visit"
	"BATCH_ID"		"Laboratory batch number"
	"SAM_CODE"		"Sample code (Regular/Lab duplicate/Lab split)"
	"ANALYTE"		"Analyte"
	"MATRIX"		"Material used for analysis"
	"SAMPLE_TYPE"		"Code identifying sample type"
