ColumnNumber	ColumnLabel	Definition	Units	Range	
1	Project	Project name	None	NA	
2	Study	Study name	None	NA	
3	Location	Location name	None	NA	
4	Station	Unique station identifier	None	NA	
5	Latitude	Latitude of sampling station	Decimal degrees	24.3 - 43.1	
6	Longitude	Longitude of sampling station	Decimal degrees	-95.1 - -68.6	
7	Date	Sampling date	None	1993-07-20 - 2015-06-11	
8	FieldMethod	Field sampling method	None	NA	
9	Collection	Unique collection identifier	None	NA	
10	OriginalCollectionCode	Original field sample collection identifier	None	NA	
11	FieldReplicate	Field replicate identifier	None	NA	
12	AnalyticalMethod	Analytical method name	None	NA	
13	ParameterClass	Parameter class name	None	NA	
14	ParameterCode	Measured parameter name (abbreviation)	None	NA	
15	ParameterDescription	Measured parameter name (detailed description)	None	NA	
16	CASNumber	Chemical Abstracts Service registry number of measured parameter	None	NA	
17	LabSampleCode	Analytical lab sample identifier	None	NA	
18	Result	Measured result (numeric)	Varies	"-148.7 - 21,700,000"	
19	ResultUnits	Measured result units	None	NA	
20	ResultText	Additional text description of measured result	None	NA	
21	LabDetectionLimit	Minimum method detection limit	Varies	"0 - 4,370,000"	
22	LabQACode	Analytical lab QA code	None	NA	
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
					
