| 
| Waste Treatment and Disposal (5622  ) |  | National |  |  |  | Life, Physical, and Social Science Occupations |  
 
| Occupation | Occ. code | Estabs. reporting occupation | Est. empl. | Empl %RSE | Mean wage | Mean %RSE | Entry wage | Exp. wage | 25th pct | Median wage | 75th pct |  
| LIFE, PHYSICAL, AND SOCIAL SCIENCE OCCUPATIONS | 19-0000 |  | 2,330 | 14.60 | $ 56,295 | 3.90 |  |  | $ 38,792 | $ 54,682 | $ 69,225 |  
 | hourly |  |  |  |   | $ 27.07 |   |  |  | $ 18.65 | $ 26.29 | $ 33.28 |  
| Chemists | 19-2031 |  | 640 | 16.20 | $ 55,989 | 3.80 |  |  | $ 39,027 | $ 51,059 | $ 66,950 |  
 | hourly |  |  |  |   | $ 26.91 |   |  |  | $ 18.77 | $ 24.54 | $ 32.19 |  
| Environmental Scientists and Specialists, Including Health | 19-2041 |  | 320 | 13.70 | $ 69,348 | 3.70 |  |  | $ 50,651 | $ 66,327 | $ 84,554 |  
 | hourly |  |  |  |   | $ 33.34 |   |  |  | $ 24.35 | $ 31.88 | $ 40.65 |  
| Market Research Analysts | 19-3021 |  | 100 | 19.20 | $ 55,744 | 4.80 |  |  | $ 44,303 | $ 53,947 | $ 65,582 |  
 | hourly |  |  |  |   | $ 26.80 |   |  |  | $ 21.30 | $ 25.93 | $ 31.54 |  
| Chemical Technicians | 19-4031 |  | 320 | 12.40 | $ 48,069 | 4.00 |  |  | $ 36,496 | $ 46,793 | $ 60,336 |  
 | hourly |  |  |  |   | $ 23.11 |   |  |  | $ 17.54 | $ 22.49 | $ 29.00 |  
| Environmental Science and Protection Technicians, Including Health | 19-4091 |  | 450 | 13.40 | $ 41,650 | 3.80 |  |  | $ 32,424 | $ 37,884 | $ 47,355 |  
 | hourly |  |  |  |   | $ 20.02 |   |  |  | $ 15.58 | $ 18.22 | $ 22.77 |  
| Life, Physical, and Social Science Technicians, All Other | 19-4099 |  |  | 99.90 | $ 43,619 | 2.30 |  |  | $ 34,832 | $ 41,425 | $ 50,100 |  
 | hourly |  |  |  |   | $ 20.97 |   |  |  | $ 16.75 | $ 19.92 | $ 24.09 |  |