SAMPLE_TYPE	VARIABLE	LEGAL_VALUES	DESCRIPTION
HYDRO	COMMENT		
EVALVIS	INDEX_NCCA15		Index visit for NCCA 2015 survey - applies to both estuary and Great Lakes sites that are part of NCCA
FPLG	ACTUAL_DATE		Actual date of sample
FPLG	SAMPLE_ID		Sample ID
ALGX	METHOD		" U.S. Geological Survey Organic Geochemistry Research Laboratory liquid chromatography triple quadrupole mass spectrometry (LC/MS/MS) method identification code: LCTX is for freshwater analysis of selected cyanotoxins and  algal toxins, LCTXM was developed for brackish and saline analysis of selected cyanotoxins and algal toxins, but can also be used for freshwater analysis."
CHEM	DATE_ANALYZED		Date sample analyzed by lab
CHEM	HOLDING_TIME		Time between sampling and analysis (days)
CHEM	LAB_SAMPLE_ID		Sample id assigned by lab
CHEM	MDL		Method detection limit
CHEM	NARS_FLAG		NARS flag
CHEM	RESULT		Analytical result
FPLG	ARRIVAL_TEMP		Temperature upon arrival at lab
FPLG	CAS_NO		CAS Registry Number
FPLG	CONDITION_CODE		"Condition of smaple upon arrival at lab; Legal values are: OK, C, L, ML, NF, Q"
FPLG	DILUTION		Dilution factor required to analyze sample
FPLG	INSTRUMENT		Instrument Id for instrument used to analyze sample
FPLG	RL		Lab reporting limit
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
	RESULT_UNITS		Result unit
	HOLDING_TIME_UNITS		Days