IMMAG - Iowa Manure Management Action Group

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(515) 294-9590 or e-mail

November 2008 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.


CURRENT NEWS: The Current News page on the IMMAG site is updated weekly. Please check this site often for the latest news regarding animal feeding operations and manure management issues.

As a reminder, we are now using a new service to distribute these IMMAG Updates. If you have not already done so, please sign-up to continue to receive your IMMAG Update. After the December Update, you will no longer receive these messages unless you subscribe. The subscription is free! You can complete the on-line form at: In addition, we are also distributing the Iowa Manure Matters- Odor and Nutrient Management Newsletter (ONM) in this same manner. If you would like to continue to receive this quarterly newsletter, there is a box on the same subscription page for the IMMAG Updates- go ahead and check the ONM box as well. Not sure if you are signed up? If the version of the IMMAG Update you received does not contain colored text, pictures to download and a button at the bottom of the message to manage your subscription, then you need to sign up to continue receiving the message.

On October 27, NRCS announced Field Office Technical Guide (FOTG) yields have been updated for all counties in Iowa and effective immediately the revised county crop yields are to be used for all RUSLE2 calculations. You can read more information on the Iowa NRCS RUSLE2 Web page at:

It should be noted that you are required to use the FOTG yields for all RUSLE2 calculations including those used to support the Iowa Phosphorus Index and subsequent manure or nutrient management plans for the DNR. However, you may use your county yield averages or other methods of determining yield in the actual manure/nutrient management plan.

On October 31, the EPA signed the final NPDES CAFO rule. A copy of the rule can be found on the EPA Web page at this url. What this means for Iowa livestock producers is still unclear at this point in time. The regulatory agency in Iowa, the DNR, will have to review the rule and determine if changes are needed to Iowa Code to bring it into compliance with federal rule. For more information see the EPA's web site at or you may participate in the LPE Webcast scheduled for Friday November 21. Please see more details in the EVENTS section below.

Over the course of the past few weeks, the DNR has been circulating drafts of their proposed rules addressing manure application on snow-covered and frozen ground. After considering comments from stakeholders, a draft was submitted as an Information Item for the December EPC meeting. A copy of the Agenda Brief and a copy of the draft rules can be found linked at:  Changes and additions to the existing rules are highlighted in the draft. The public is welcome to make comments regarding these draft rules at the December 9th EPC meeting. Comments may also be sent to Claire Hruby, Geologist, IDNR - Wallace Building, 502 E. 9th St. , Des Moines, IA 50319;
ph: 515-242-6848 or If the draft rule is accepted by the commission, it will be presented as a Notice of Intended Action at the January EPC meeting, when dates for regional public comment sessions will be announced. I will include any information about public comments sessions or how to submit comments in a future IMMAG Update.

As reported in the October 2008 edition of the IMMAG Update, earlier this year, the Iowa Legislature passed a bill that brought certain provisions of the animal feeding operations rules into compliance with the EPA's Concentrated Animal Feeding Operations (CAFO) rules. One of these provisions was the method in which animals are counted to determine if a National Pollutant Discharge Elimination System (NPDES) permit is needed. For more information regarding this rule and whether it could potentially affect your livestock operation please see The deadline for applying for these permits is December 31, 2008.

PUBLICATIONS and REPORTS: Volume 10 of the Iowa Manure Manager Series titled Selling and Buying Manure in Iowa has been posted to the IMMAG publications page at: Copies of this fact sheet are only available on this web page. Also, because this has become a big issue, I have added a whole new page on IMMAG called BUYING AND SELLING MANURE. You can find additional resources and links to agency forms on this web page.

MANURE APPLICATOR CERTIFICATION: DNR reports there are still approximately 230 confinement site manure applicators who need to attend 2 hours of training yet this year to avoid taking the remedial exam to be eligible to recertify in 2009. For more information please see: Please contact your County Extension Office to schedule time to meet the required annual training or contact your local DNR Field Office to schedule time to take the certification exam. If you need to determine you current certification status, contact DNR at 515-281-5918. Please ask for the Licensing Bureau and state you are a manure applicator. Additional information, including 2009 training workshops, dates and locations can be found at:

EVENTS: For a complete list of events, please see the IMMAG events page at:

November 21, 2008, 1:30 p.m. (central). The next LPE Webcast is titled "Changes to the EPA CAFO Regulations". The presenters are George Utting and Paul Shriner, US EPA. They will discuss the newly-signed regulations and the implications for livestock and poultry producers. You can access this Webcast by going to this site:

December 19, 2008, 1:30 p.m. (central) The December LPE Webcast is titled "Nutrient Management Planning Software" and will look at the MMP software from Purdue that is favored by the USDA. You can access this Webcast by going to this site:

January 7, 2009. Commercial Manure Applicator Certification Satellite Uplink. This 3 hour training workshop for commercial manure applicators will be held at 72 sites in Iowa, 1 in Nebraska and 3 in Wisconsin. The workshop will begin at 9 a.m. For a list of County Extension Offices hosting this workshop, please see this url. Additional information for commercial manure applicators can be found at:

January and February 2009. Iowa State University Extension will host 82 training workshops for confinement site manure applicators. These workshops will meet the mandated 2 hours of annual training for confinement site manure applicators. For information on workshop location and dates please see this url. Additional information for confinement site manure applicators can be found at:




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.