COLUMN_NAME SAMPLE_TYPE UNITS LABEL FORMABBR VAR_TYPE RANGE_HIGH RANGE_LOW LEGAL_VALUES MCYST_FINAL ALGT ug/L Final reported microcystin result (ug/L) NUMERIC METHOD ALGT Method used (Freshwater or Saltwater) based on salinity with 3.5 ppt being the salinity cutoff for poor performance of the Freshwater method CHARACTER |Freshwater|Saltwater MRL ALGT Minimum reporting level (ug/L) NUMERIC 0 1 UID Unique identification number for a site visit