| Staff Toxicologist (Specialist) | 42 | $121,123 |
| Member, Science Advisory Board/Office of Environmental Health Hazard Assessment | 12 | $1,146 |
| Research Scientist Staff | 11 | $97,820 |
| Senior Toxicologist | 11 | $163,246 |
| Analyst II, Range A | 6 | |
| Research Scientist I (Epidemiology/Biostatistics) | 5 | |
| Research Scientist Senior | 5 | |
| Senior Environmental Scientist(Specialist) | 5 | |
| Supervising Toxicologist (Managerial) | 5 | |
| Associate Toxicologist, Range B | 4 | |
| C.E.A., Range A | 4 | |
| Environmental Program Manager I (Supervisory) | 4 | |
| Research Scientist | 3 | |
| Supervisor I | 3 | |
| Associate Personnel Analyst, Range A | 2 | |
| Attorney IV, Range A | 2 | |
| Environmental Scientist, Range C | 2 | |
| Health Program Specialist I | 2 | |
| Information Technology Associate, Range D | 2 | |
| Information Technology Specialist I, Range A | 2 | |
| Information Technology Supervisor II | 2 | |
| Public Health Medical Officer II, Range C | 2 | |
| Public Health Medical Officer III, Range C | 2 | |
| Research Scientist IV (Chemical Sciences) | 2 | |
| Research Scientist Supervisor I | 2 | |
| Supervisor II | 2 | |
| Accountant I (Specialist), Range A | 1 | |
| Accounting Officer (Specialist), Range A | 1 | |
| Administrative Assistant II, Range A | 1 | |
| Analyst I, Range C | 1 | |