Time Domain Analyte Data

We recommend that analyte files which represent data collected over time use either the APDV or AIDV format and include data for only a single analyte

We do not recommend using the SCT or GWT formats.

When using APDV or AIDV files for time domain data, the following rules apply:

• Include data for only a single analyte

• Group measurements taken over a few days or even weeks into the same DATE GROUP.  If your entire site is re-sampled every 3 months, do not separately list each day when a particular well is sampled.

• The "analyte name" for each column of data representing a Date Group should be the average date for that sampling event.  The date must be in the Windows standard short date format.  In the United States that is typically MM/DD/YYYY (e.g. 11/08/2003 for November 8, 2003)

• The data file cannot specify the actual analyte name (e.g. benzene).  However, the modules which deal with time domain data have the ability to specify the actual name and units.

• Date groups need not be at equal time intervals.