VARIABLE	LEGAL_VALUES	DESCRIPTION
CNTRL_CORR_SURV		Control-corrected Survival of Amphipods in Toxicity Tests
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
ARRIVAL_TEMP		Temperature upon arrival at lab
CONDITION_CODE		"Condition of smaple upon arrival at lab; Legal values are: OK, C, L, ML, NF, Q"
DATE_RECEIVED		Date sample received by lab.
BATCH_PASS		Did the Control Survival meet QC requirement for FW or Marine samples?
BATCH_SAMPLES		Number of samples tested in batch
CONDITION_COMMENT		Comment on condition of sample
CONTROL		Control substrate
END_DATE		End date of test
MEAN_NSURV		Mean number survived
ORGANISM		Name of organism used in toxicity testing
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."
SD_NSURV		Standard deviation of number survived
START_DATE		Start date of test
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"
MEAN_PSURV		Mean percent survival
SD_PSURV		Standard deviation percent survival
BATCH_ID		Laboratory batch number
SAMPLE_TYPE		Code identifying sample type