| Business | Phone |
| Air Quality Control Bureau 2600 Bull St, Columbia 29201 | (803) 898-4123 |
| Drinking Water Protection Bur 2600 Bull St, Columbia 29201 | (803) 898-4300 |
| Environmental Quality Control 2600 Bull St, Columbia 29201 | (803) 898-8940 |
| Environmental Services 2200 Harden St, Columbia 29203 | (803) 737-5380 |
| Health & Environmental Control 2600 Bull St, Columbia 29201 | (803) 898-3300 |
| Solid & Hazardous Waste Mgmt 8911 Farrow Rd # 109, Columbia 29203 | (803) 896-4000 |
| Water Quality Assessment Div 2600 Bull St, Columbia 29201 | (803) 734-5300 |