IMMAG - Iowa Manure Management Action Group

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(515) 294-9590 or e-mail

October 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 my mother would say “you’ve outgrown your britches”.  IMMAG has most certainly outgrown its britches or at least our emailing capacity.  Due the size of our email list, it is time to upgrade our system of delivering the IMMAG Update to you.  If you are receiving this message in email format with no pictures or fancy graphics then you need to subscribe to our new email delivery system.  You can do this by going to this Web page, completing the form, and clicking on the box at the bottom for IMMAG.  At the same time, you can choose whether to have the Iowa Manure Matters-Odor and Nutrient Management Newsletter delivered to you in the same format by also clicking on the box at the bottom for ONM.  This format will allow you to manage your own subscriptions and will allow us to deliver a better newsletter. Thanks to all who have already signed up for the new delivery format.  Let us know what you think.  If you are receiving multiple copies of the IMMAG Update, please be patient while we convert from the old system to the new system. 

Watch those soil temperatures for manure application.  Storage facilities are full and producers are battling wet soil conditions to apply manure so waiting to apply manure under ideal soil temperatures is not a high priority. However, if reducing the risk of nitrogen loss is a concern please read this article “Watch the $oil TemperaturE” 

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.  If you have animals that are considered to be of the same type as defined by EPA, and those animals are housed both outdoors and under roof, you must now count those animals together to determine if an NPDES permit is needed.  If you determine that your facility needs an NPDES permit, you must apply for this permit by December 31, 2008.   Time is running short and this process involves several steps including required soil samples, development of the nutrient management plan, proof of public notice of the nutrient management plan, develop a schedule of any planned construction requirements, possible hiring of an engineer.  Please access the DNR Web site for information on determining NPDES status.
Quick links to information are listed below and can also be found on the IMMAG homepage under Hot Topics.

DNR Press Release

DNR Fact Sheet NPDES Permits

DNR Fact Sheet Dairies Act Now!

EPA’s Producer’s Compliance Guide for CAFOs

Producers and consultants should note DNR has recently revised the operation permit application form, the construction permit application form and the nutrient management plan form for combined operations.  In addition, they have developed a new form, “Compliance Steps for Combined CAFOs.” These forms can be found on the DNR Web page.

PLANS, PERMITS, REGULATIONS: Is your P-Index manure management plan due for the first time this winter or early next spring?  If so, you will want to consider having soil samples taken this fall prior to the ground freezing.  This also applies if your existing P-Index plan is due to be re-submitted (required every 4 years).  Please see this link to a recent ONM newsletter article for additional information.

PUBLICATIONS and REPORTS:Iowa State University Extension recently published a new fact sheet on manure “Using Manure Nutrients for Crop Production” PMR 1003.  This fact sheet replaces PM 1811 and includes new values related to nutrient availability to crops. The fact sheet is available at your local County Extension Office, or you may download copies at this url.

MANURE APPLICATOR CERTIFICATION: If you can't be in the field due to wet conditions, now is a great time to meet your manure applicator certification requirements. Confinement site manure applicators need to attend 2 hours of training annually to meet their certification requirements. Commercial manure applicators are required to attend 3 hours of annual training. Commercial applicators are allowed to work for 30 days prior to meeting certification requirements but must be working toward certification. 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 the DNR Licensing Bureau at 515-281-5918. Please asking the Licensing Bureau and state you are a manure applicator. Additional information can be found here.

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

LPE Webcast - Diet Impacts on Air Emissions
November 21, 2008; 1:30 p.m. (central)

LPE Webcast - Nutrient Management Planning Software
December 19, 2008; 1:30 p.m. (central)

2009 Confinement Site Manure Applicator Certification Workshops

Iowa Commercial Manure Applicator Certification
January 7, 2009



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.