| Column_or_Row_Name | Unit | Definition | Column_or_Row_Long_Name | Data_Type |
|---|---|---|---|---|
| area | N/A | Name of the intensive field site within the project. Possible values: Area A, Area B, Area C | Field site name | text |
| date_collected | yyyy-mm-dd | Date samples were collected in the field. | N/A | date |
| sample_ID | N/A | Samples were collected in the field and bags marked with sequential ID numbers. | Unique sample identifier | text |
| long | decimal degrees | Longitude provided in WGS84 | Longitude | numeric |
| lat | decimal degrees | Latitude provided in WGS84 | Latitude | numeric |
| sample_volume_collected | mg/L | The volume of the sample collected. | The volume of the sample collected. | numeric |
| sample_type | N/A | Type of sample collection method. Possible values: ISCO, surface_grab | N/A | N/A |
| Fl | mg/L | Fluoride concentration. Missing data = -9999 | Fluoride | numeric |
| Cl | mg/L | Chloride concentration | Chloride | numeric |
| Ca | mg/L | Calcium concentration | Calcium | numeric |