| OBSP Statistical Summary for DEETHYLATRAZINE (DESETHYL ATRAZINE) |
| Spike Level | Range | N | Mean | Std-Dev. | Median | F_Pseudo |
| ULTRA-LOW | 0.01-0.05 | 22 | 101% | 33% | 104% | 32% |
| LOW | 0.05-0.1 | 15 | 94% | 27% | 91% | 30% |
| MEDIUM | 0.1-0.5 | 16 | 75% | 32% | 79% | 37% |
| HIGH | 0.5-1.0+ | 6 | 68% | 26% | 71% | 28% |