IMMAG - Iowa Manure Management Action Group

Contact us

(515) 294-9590 or e-mail

February 2011 IMMAG Update

Welcome to the monthly update for the Iowa Manure Management Action Group (IMMAG) Web site. This update is provided as a service to inform you about changes made to the IMMAG Web Page or items of interest dealing with manure management and air quality from animal feeding operations. If you wish to subscribe to this mailing please click here. You may also view this update with direct links on the CURRENT NEWS site on IMMAG.



Follow iowamanure on Twitter The Current News page on the IMMAG site is updated weekly. Follow the Iowa Manure Management Action Group on Twitter at @iowamanure.

Extreme caution is advised if you plan to apply manure this week. Temperatures are forecasted to reach into the 30s and 40s this weekend and through the end of next week. And while this is welcome news to most of us, this warming trend will cause rapid snow melt and the potential to create a high risk for runoff of manure nutrients. If you must apply manure wait until after the snow has melted or follow these best management practices:

  • Apply on level ground;
  • Avoid application on ground that drains to tile inlets that discharge directly to surface or groundwater;
  • Do not apply manure in a grassed waterway;
  • Follow the required separation distances for land application of manure;
  • Do not apply on top of deep snow;
  • Do not apply prior to when precipitation is forecasted or warming conditions will cause snow melt.

Even if you follow all of these guidelines, you still can’t cause a water quality violation so please exercise caution when applying manure this time of year. It should also be noted that it is prohibited to apply liquid manure from confinement feeding operations on snow-covered or frozen ground during winter except in an emergency application.

For more information about winter application of manure see Volume 3 in the Iowa Manure Manager Series On Winter Manure Application as well as these resources:

DNR 113 Separation Distances for Land Application of Manure

Winter Application of Manure: Regulations and Common Sense

Winter Manure Application Webcast  (19 minutes)

NRCS is currently revising the National 590 Nutrient Management Standard. The proposed new national 590 Nutrient Management technical standard was posted on January 11, 2011, on the Federal Register. Instructions for how to make comments are on this website. The due date for comments is February 25, 2011. The draft of the 590 Standard can be downloaded here.

Updated chapters of Environmental Regulations Handbook now available online  
Chapters of the IPPA sponsored Iowa Environmental Regulations Handbook have been updated to reflect changes in the latest DNR rule package. Edited chapters discuss construction requirements for confinements and manure management requirements for confinements.
The handbook can be viewed by clicking the button on the homepage or clicking on this link
The information in this handbook is based on laws and regulations in effect at the time of publication. Producers are advised to stay informed of changes in these laws and to contact IPPA for further information. For more information on this handbook, IPPA environmental programs or other regulatory issues, please contact Tyler Bettin, IPPA producer education director at or (800) 372-7675.

Iowa Pork Congress seminar presentations available online
PowerPoint presentations from the 2011 Iowa Pork Congress seminars are now available by visiting Topics discussed at the 2011 Iowa Pork Congress included environmental regulations, legislative initiatives, trade, economic outlook, safety, genetics, antibiotic use, niche marketing, PRRS virus and contracts.  Presentations can be viewed and downloaded by visiting, clicking the for producers tab on the left side and choosing the link for seminars/conferences or by clicking on this link.
Presentations with audio recording of presenters will also be uploaded to SwineCast. Keep an eye out for this link in an upcoming SIP Communicator newsletter. For more information about Iowa Pork Congress seminar proceedings, please contact Tyler Bettin, IPPA producer education director, at or (800) 372-7675.


2011 Confinement Site Manure Applicator Certification Training Workshops are scheduled for January and February 2011. Please click here for a list of dates, times and locations.  

Dry Manure Applicator Workshops are scheduled for February 2011. These workshops meet the certification requirements for both commercial and confinement site applicators and focus more on dry/solid manure issues. For more information please click here. Please note, the dry manure applicator certification workshop scheduled for February 2nd in Thompson, Iowa has been rescheduled for Monday, February 21 at 1 p.m. at the Branding Iron Restaurant. Please remember to call the Extension office offering the meeting you plan to attend to register for the workshop.

Commercial applicators should attend to plan manure certification training prior to March 1 to avoid paying the late fees. Contact your local county extension office to determine dates and times for the program reshows


The IMMAG Events page is a compilation of manure management related events. Please check the events page often for new listings.

Feb 18, 2011 at 1:30 LPELC Webcast: "Changing Management of Nutrients in the Chesapeake Bay Watershed". These webcasts are open to all people.

March 2, 2011. Iowa State University, IMMAG and the Iowa NRCS are hosting an Advanced RUSLE2 workshop at the Polk County Extension Office in Altoona.  More information can be found at:

Iowa State University Extension is sponsoring three workshops for medium-size CAFO dairy and open feedlot operations.  The objective of these workshops is to help producers understand current regulatory enforcement by EPA, the design criteria for manure control, NPDES permit requirements and resources available for technical assistance.  More information on these workshops will be provided in the March edition of the IMMAG email Update.  A registration fee will be charged to cover the cost of lunch and handout materials.   Please save these dates: 
March 29, 2011 Spencer Community School Administration Bld., Call 712-262-2264 to register
March 30, 2011 Sioux Center Corporate Center, Call 712-737-4230 to register
March 31, 2011 Arcadia American Legion Hall, Call 712-792-2364 to register


Best Wishes,

Angela Rieck-Hinz
2104 Agronomy Hall
Iowa State University
Ames, IA 50011
(515) 294-9590
Iowa Manure Management Action Group

Manure sampling - Click on photo to enlarge

Manure sampling.


Newest IMMAG update available.