| Business | Phone |
| Us Geological Water Resources Pierre 57501 | (605) 773-5388 |
| Us Real Estate Project Ofc 28721 Powerhouse Rd, Pierre 57501 | (605) 224-8618 |
| Us Regulatory Office 28563 Powerhouse Rd # 120, Pierre 57501 | (605) 224-8531 |
| Clinical Enigeering-Dhhs/Phs 420 S Garfield Ave, Pierre 57501 | (605) 945-1319 |
| Natural Resource Conservation 316 Coteau St, Pierre 57501 | (605) 224-8870 |