| Business | Phone |
| Pollution Control Office 2380 Highway 80 W, Jackson 39204 | (601) 961-5171 |
| Pollution Control Office 1542 Old Whitfield Rd, Jackson 39208 | (601) 664-3900 |
| Surface Water 2380 Highway 80 W, Jackson 39204 | (601) 961-5102 |
| Water Supply Div 440 E Woodrow Wilson Ave, Jackson 39216 | (601) 576-7680 |
| Environmental Protection Cncl 429 Mississippi St, Jackson 39201 | (601) 359-3522 |
| Environmental Quality Dept 2380 Highway 80 W, Jackson 39204 | (601) 961-5002 |
| General Environmental Svc 570 Woodrow Wilson # A102, Jackson 39216 | (601) 576-7400 |
| Groundwater Division 101 Capitol Centre, Jackson 39201 | (601) 961-5171 |
| Hazardous Waste Div 2380 Highway 80 W, Jackson 39204 | (601) 961-5062 |
| Land & Water Resources 2380 Highway 80 W, Jackson 39204 | (601) 961-5200 |