IMMAG - Iowa Manure Management Action Group

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(515) 294-9590 or e-mail

November 2009 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.

Are you receiving your own copy of the IMMAG Email Update? If not, why wait on others to forward their copy to you? You can subscribe to this monthly email newsletter by completing the form found at:

The Environmental Protection Commission met on November 17 and approved the notice of intended action for rule changes to Chapter 65, Animal Feeding Operations.  It is anticipated that public hearings for this rule package will be scheduled for mid January through early February.  Once information is finalized a list of public hearing dates and locations will be posted to the IMMAG events page and included in a future IMMAG email update.  You can access a copy of this rule package at:

In the October issue of the IMMAG Update I made reference to several flash fire/explosion events when agitating or pumping manure from swine barns. Since that time I have been made aware of another explosion that seriously injured the swine producer. The issue of foaming in pits, explosions and flash fires is still being investigated, but I would very remiss if I didn’t remind you to exert caution and observe all safety precautions when pumping and agitating manure from liquid storage structures. Please take time to read the information in the following links and remind employees to observe all safety precautions.

University of Minnesota: Ventilate and take other safety measures to prevent manure pit explosions

Iowa State University Extension: Livestock Producers Facing Explosion Hazards with Manure Pumping

Safety does not end with pumping and agitation of manure. Because fall application is behind schedule, many applicators are working long hours and are in a hurry to get jobs done. Please remember to take breaks, get plenty of rest, observe all laws of the road when transporting manure and train new employees to properly and safely handle equipment. Develop an emergency action plan. Train your employees and family members how to respond in the event of a spill or emergency. Safety is priority one.

Finally, as a general reminder, last year (May 2008) a law went into effect that limits the amount of liquid manure from confinements and effluent from open lots being applied to a field going to be planted to soybean to 100 pounds of total nitrogen. This amount includes all sources of N if the field is receiving liquid manure plus a commercial fertilizer source.


Confinement site manure applicators are reminded they must attend 2 hours of training each year of their 3 year license or they will be required to take a remedial exam before renewing their certificates in 2010. If you have not attended your two hours of training in 2009, please contact your County Extension Office to make an appointment to watch the training video or determine the next opportunity for training.  A list of County Extension Offices and contact information can be found at: Click on your county for contact information.


November 20, 2009. The Livestock and Poultry Environmental Learning Center will be hosting the Webcast "Snap-shot Assessments of Nutrient Use on Commercial Dairy Farms." This Webcast will begin at 1:30 p.m. central. For more information including instructions on how to participate please click here.

December 2-3, 2009. The 21st Annual Integrated Crop Management Conference will be held at Iowa State University. This conference is an excellent way to stay current on soil fertility, soil management and crop production issues. The deadline for early registration is midnight on November 20.  On-line registration, the program agenda, and list of invited speakers can be found at:

On December 9, 2009, the Amana Farms Renewable Energy Center and Iowa State University Extension will host the education outreach program "On-Farm Anaerobic Digestion: Considering the Options". The program will be held at the Iowa Artists Theatre Co. in the Amana Colonies, and it will be followed by a digester tour at the Renewable Energy Center. The three hour program beginning at 9:00 a.m. will contain information on the Amana Farms beef manure digester including goals and objectives, design and installation, and the farm’s experiences; feasibility considerations for on-farm manure digesters; manure digester opportunities in Iowa; and digester methane production for carbon credits. Following lunch on your own, tours of the Amana Farms digester will be available at the Renewable Energy Center. The registration fee is $25, and attendees should register on-site. For more information please click here.

December 17, 2009. IMMAG, Iowa State University Extension and the IA NRCS will host the next RUSLE2 and Iowa Phosphorus Index workshop at the Borlaug Learning Center on the NE Iowa Research and Demonstration Farm near Nashua, Iowa. Registration for this workshop is now open and can be accessed at: This workshop is designed to train service providers who are assisting livestock producers in the development of state required manure and nutrient management plans that will be implementing the Phosphorus Index. Producers are also welcome to attend. If you have questions about this workshop, please call Kapil Arora at 515-382-6551 or Angie Rieck-Hinz at 515-294-9590. The cost of the workshop is $160 if registered on or prior to December 10. Registration cost after December 10 is $175. Attendees must bring a laptop computer.

January 6, 2010. Iowa Commercial Manure Applicator Certification Training. This training will provide the necessary 3 hours of annual training for commercial applicators to meet certification requirements in Iowa. For a list of County Extension Offices offering this training please click here. Please contact the County Extension Office where you plan to attend to register for this training.

January and February 2010. Confinement Site Manure Applicator Certification Workshops. Please click here for a complete list of workshop dates, times and locations.



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.


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