Official State of Iowa Website Here is how you know

Environmental Field Offices

The Iowa DNR Field Services and Compliance Bureau includes six field offices located throughout Iowa. They serve as a point of contact for questions about activities and problems related to environmental protection throughout the state. The focus of field office staff is helping citizens, business and industry achieve compliance with Iowa’s environmental programs. Our goal is to coach for compliance rather than collect penalties.

Field office staff conduct routine inspections at facilities permitted by the department and provide technical assistance to help people meet permit requirements. Staff investigate complaints from the public, and respond to spills of hazardous substances from a variety of sources.

The bureau is also responsible for Emergency Planning and Community Right-to-Know Act (EPCRA) reporting and data management, disaster planning and response coordination, and training and exercise planning and coordination.

Field Office Brochure [PDF]

The DNR relies on interested and concerned individuals to report conditions that might be a threat to the public or environment. Environmental complaint investigations are a part of each field inspector’s job and staff respond to many complaints each year.

Call your local Field Office if you observe:

  • Fish kill – Report as soon as possible including numbers, sizes and species involved
  • Chemical spills - Note location, date and time and party responsible, if known
  • Strange color or odor in stream or river - Report as soon as possible with a description. Note if aquatic life or fish seem stressed or are dead
  • Improper disposal of hazardous substances - Note if drums, cans or plastic buckets, etc. are present
  • Open dumping
  • Open burning

Tips for Filing a Complaint (You can remain anonymous):
  • Report it as soon as you see it - if you wait too long, staff may not be able to verify the complaint
  • Take photos or video
  • Keep a log with dates and times
  • Be specific about the location
  • Identify the party responsible if possible - Company name, license plate number, etc.

Counties Served

Iowa Environmental Field Office Locations | Iowa DNR

Manchester Field Office #1, Northeast Iowa

Serves: Allamakee, Benton, Black Hawk, Bremer, Buchanan, Chickasaw, Clayton, Delaware, Dubuque, Fayette, Howard, Jackson, Jones, Linn, Winneshiek

Mason City Field Office #2, North Central Iowa
Serves: Butler, Cerro Gordo, Floyd, Franklin, Grundy, Hamilton, Hancock, Hardin, Humboldt, Kossuth, Mitchell, Webster, Winnebago, Worth, Wright

Spencer Field Office #3, Northwest Iowa
Serves: Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet, Ida, Lyon, O'Brien, Osceola, Palo Alto, Plymouth, Pocahontas, Sac, Sioux, and Woodbury

Atlantic Field Office #4, Southwest Iowa
Serves: Adair, Adams, Audubon, Carroll, Cass, Crawford, Fremont, Greene, Guthrie, Harrison, Mills, Monona, Montgomery, Page, Pottawattamie, Ringgold, Shelby, Taylor, Union

Des Moines Field Office #5, South Central Iowa
Serves: Appanoose, Boone, Clarke, Dallas, Decatur, Jasper, Lucas, Madison, Mahaska, Marion, Marshall, Monroe, Polk, Poweshiek, Story, Tama, Warren, Wayne

Washington Field Office #6, Southeast Iowa
Serves: Cedar, Clinton, Davis, Des Moines, Henry, Iowa, Jefferson, Johnson, Keokuk, Lee, Louisa, Muscatine, Scott, Van Buren, Wapello, Washington 


24 Hour Environmental Reporting Hotline

Reporting Spills

Find a Field Office

Field Office 1 - NE Iowa
1101 Commercial Ct, Suite 10 
Manchester, Iowa 52057
P: 563-927-2640
F: 563-927-2075
Field Office 1 Staff Roster

Field Office 2 - NC Iowa
2300 15th St. SW
Mason City, Iowa 50401
P: 641-424-4073
F: 641-424-9342
Field Office 2 Staff Roster 

Field Office 3 - NW Iowa
1900 N. Grand Ave., Ste. E17
Spencer, Iowa 51301
P: 712-262-4177
F: 712-262-2901
Field Office 3 Staff Roster

Field Office 4 - SW Iowa
1401 Sunnyside Ln.
Atlantic, Iowa 50022
P: 712-243-1934
F: 712-243-6251
Field Office 4 Staff Roster

Field Office 5 - SC Iowa
6200 Park Avenue Ste 200
Des Moines, Iowa 50321

P: 515-725-0268
F: 515-725-8201
Field Office 5 Staff Roster

Field Office 6 - SE Iowa
1023 W. Madison
Washington, Iowa 52353
P: 319-653-2135
F: 319-653-2856
Field Office 6 Staff Roster


Emergency Response/EPCRA

6200 Park Avenue, Ste 200, Des Moines, IA 50321 

  • ER: 515-204-3352 
  • EPCRA: 515-725-0268 
  • Fax: 515-725-8201