14 (tie). Water and wastewater treatment plant and system operator

Water and wastewater treatment plant and system operators operate or control an entire process or system of machines, often through the use of control boards, to transfer or treat water or wastewater.

Median annual salary: $45,760

Overall unhealthiness score: 58.2

Top three health risks:

1. Exposure to contaminants: 97

2. Exposure to hazardous conditions: 80

3. Exposure to minor burns, cuts, bites, or stings: 74