| Business | Phone |
| Abanded Minelands 122 W 25th St, Cheyenne 82002 | (307) 473-1233 |
| Air Quality Div 122 W 25th St, Cheyenne 82001 | (307) 777-7391 |
| Air Quality Lab 2300 Capitol Ave, Cheyenne 82001 | (307) 777-7351 |
| Environmental Quality Council 122 W 25th St 1714, Cheyenne 82001 | (307) 777-7170 |
| Environmental Quality Dept 122 W 25th St, Cheyenne 82001 | (307) 777-7937 |
| Water Development Commission 6920 Yellowtail Rd, Cheyenne 82009 | (307) 777-7626 |
| Water Quality Div 122 W 25th St, Cheyenne 82001 | (307) 777-7781 |
| Water Quality Lab 2300 Capitol Ave, Cheyenne 82001 | (307) 777-7317 |
| State Engineer 122 W 25th St, Cheyenne 82001 | (307) 777-7354 |
| Solid Waste Management Div 122 W 25th St, Cheyenne 82001 | (307) 777-7752 |