VARIABLE	LEGAL_VALUES	DESCRIPTION
INDEX_AP	Y|N|NA	Index visit for Albemarle-Pamlico Study
INDEX_NCCA15		Index visit for NCCA 2015 survey - applies to both estuary and Great Lakes sites that are part of NCCA
SAMPLE_ID		Sample ID
NARS_COMMENT		Lab comment translated to NARS flag comment.
NARS_FLAG		NARS flag
TYPE		Type of solution being tested in the well
ORGANISM		Name of organism used in toxicity testing
ORGANISM_BATCH_ID		Code for batch of organisms
RETEST		"Was sample retested? Y=Yes, Blank=No. Only retest test results are shown. Failed test results are not published and not used in assessment."
TEST_TYPE		Test Type (Marine/Freshwater)
PSTL_CODE		State (US) or Province (Canada) abbreviation
STUDY		Study name
LAB		Lab that conducted analysis
DATE_COL	|01|02|03|04|05|06|07|08|09|10|11|12	Date collected
SITE_ID		Site id
VISIT_NO	|1|2	Visit: 1/2
YEAR		Year site visited
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
SAMPLE_CAT		"Sample category (P)rimary, (D)uplicate,(F)ield Blank"
REP		Sequential replicate number
NUM_SURVIVAL		Number of surviving organisms
PER_SURVIVAL		Percentage of surviving organisms
BATCH_ID		Laboratory batch number
CONTROL_ID		Identifying code for control test associated with each batch
