UnitsThe unit the prameter is reported in. Lab_sample_noThe sample number assigned to the result by the laboratory. VALUEThe numerical result value. DLThe lowest detection limit for the method used in the unit reported. flagND = The result was below the detection limit. NDR = The parameter was detected but the concentration was below the lowest quantification limit. NA = No flag applied. StationThe station description for the sampling location. AEPA station codeThe station code applied to the sampling location. LatLatitude in decimal degrees. LongLongitude in decimal degrees. Date sampledThe sampling date in M/D/YYYY format. Station ShortnameAn abreviated station name used for mapping and data visualization.