| Business | Phone |
| Natural Resources 502 E 9th St, Des Moines 50319 | (515) 281-5029 |
| Solid Waste Div 502 E 9th St, Des Moines 50319 | (515) 281-4968 |
| Waste Reduction Bureau 900 E Grand Ave 502, Des Moines 50319 | (515) 281-8489 |
| Water Quality Planning 900 E Grand Ave 502, Des Moines 50319 | (515) 281-8869 |
| Water Supply Section 900 E Grand Ave 502, Des Moines 50319 | (515) 281-8998 |