| Environmental Scientist, Range C | 90 | $79,154 |
| Senior Environmental Scientist(Specialist) | 74 | $98,960 |
| Analyst II, Range A | 41 | $75,113 |
| Environmental Program Manager I (Supervisory) | 29 | $164,540 |
| Scientific Aid | 29 | $19,963 |
| Senior Environmental Scientist (Supervisory) | 23 | $132,287 |
| Staff Toxicologist (Specialist) | 21 | $118,279 |
| Environmental Scientist, Range B | 20 | $53,881 |
| Analyst I, Range C | 17 | $56,767 |
| Supervisor I | 15 | $91,710 |
| Information Technology Specialist I, Range C | 11 | $108,018 |
| Environmental Program Manager II | 9 | |
| Office Technician (General), Range A | 7 | |
| Senior Toxicologist | 7 | |
| Associate Toxicologist, Range B | 6 | |
| C.E.A., Range A | 6 | |
| Information Technology Associate, Range D | 6 | |
| Information Technology Supervisor II | 6 | |
| Environmental Scientist, Range A | 5 | |
| Research Scientist | 5 | |
| Information Technology Specialist II, Range A | 4 | |
| Research Scientist III (Chemical Sciences) | 4 | |
| Research Scientist Staff | 4 | |
| Supervisor II | 4 | |
| Associate Management Auditor, Range A | 3 | |
| Attorney IV, Range A | 3 | |
| Information Officer I (Specialist), Range A | 3 | |
| Information Technology Associate, Range C | 3 | |
| Manager II | 3 | |
| Research Data Specialist II, Range A | 3 | |