| Boolean Classes | Results |
| isSoil | True And all others are false: 191,793 records |
| isSed | isSed = True And all others are false: 12,326 records |
| isSoil = True And isSed = True, and all 10 others are false: 1689 records | |
| isLeachate | isSoil = True And isLeachate = True And all others are false: 383 records |
| isSed = True And isLeachate = True And all others are false: 659 records | |
| isLeachate = True And isGW = True And all others are false: 58 records | |
| isLeachate = True And all others are false: 165 records | |
| isGW | Probably non-potable ground water: |
| isGW = True And all others are false: 128,963 records | |
| isGW = True And isInfluent = True And all others are false: 641 records | |
| isGW = True And isEffluent = True And all others are false: 244 records (probably treated) | |
| Probably potable ground water: | |
| isGW = True And isPotable = True And all others are false: 892 records | |
| isSGorIAorOA | (indicates a sample of Soil Gas or Indoor Air or Outdoor (Ambient) Air) True And all others are false: 2536 records |
| isInfluent* | True And all others are false: 174 records |
| isEffluent* | True And all others are false: 94 records |
| isSurfWater | Results postponed |