IMMAG - Iowa Manure Management Action Group

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(515) 294-9590 or e-mail

October 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.

Last week the EPA announced a new proposed rule for reporting requirements for NPDES CAFOs. The EPA is currently taking public comments on this rule until December 20, 2011. The EPA has also scheduled two webinars to provide an overview and answer questions about the proposed rule. The webinar dates and details are listed below under the Events section.
Here is the summary from the EPA web page and accompanying links with more information.
EPA is proposing a rule that would require concentrated animal feeding operations (CAFOs) to submit basic operational information to EPA so the Agency can more effectively carry out its CAFO permitting programs on a national level and ensure that CAFOs are implementing practices to protect water quality and human health. The proposal is part of a settlement agreement reached with the Natural Resources Defense Council, Waterkeeper Alliance, and the Sierra Club. Under the proposed rule, EPA is co-proposing two regulatory options regarding which CAFOs would be required to submit information to the EPA. One option would require every CAFO to report this information to EPA, unless states with authorized NPDES programs choose to provide this information on behalf of the CAFOs in their state. A second option would require CAFOs in focus watersheds that have water quality concerns associated with CAFOs to report information to EPA.
EPA is requesting public comment on both options as well as alternative approaches to gather information. The proposed rule will be open for public comment for 60 days (until December 20, 2011) following publication in the Federal Register. The Agency plans to take final action on this proposal by July 2012.
 Proposed Rule Federal Register Notice, Vol. 76. No. 204 Friday Oct. 21, 2011
Fact Sheet (PDF) (2 pp)
Q&A (PDF) (4 pp)
The Iowa DNR recently updated Appendix A for manure management plans. This updated file contains crop yield information for 2006-2010. You can access Appendix A at:
The August IMMAG Update included the following paragraph in regards to foaming pits and a reminder about safety during pumping and application season. This is just a reminder to be vigilant about safety and take all necessary precautions, especially when pumping and agitating foaming pits. You may want to consider sharing this video with your employees, commercial manure applicators, or others that may be working in deep-pit swine barns.

Iowa State University released a safety video in September 2010 about practices that should be considered when pumping from foaming pits. This video has recently been updated and is located at: Upon conclusion of watching this video we ask that you please take a few minutes to complete the survey if you are experiencing foaming pits. The survey link is:​s/​foaming

Attention Commercial Manure Applicators, I need your help. Your colleagues have suggested we compile a list of the top 10 things you can do to avoid a manure spill and use that information in your commercial manure applicator training in January.  Send your top ten or top five, or top idea to me at and I will compile a list of the most popular ideas. If you have photos you want to share as well, that would be helpful. Thanks!



Iowa State University Extension and Outreach has recently released a publication that complements existing extension manure management resources. How to Interpret Your Manure Analysis, PM 3014, explains the value of manure sample analyses that indicate nutrient concentrations. Such analyses help define application rates that increase the potential of manure as a crop nutrient source. You can access a copy of the publication by clicking on the above link and then hitting “download” or you can order a copy of the publication by contacting Extension Distribution Center at 515-294-5247 or



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

EPA Webcasts for Proposed NPDES CAFO reporting rule. You must register to participate. Click on the links to register for the Webcasts.
November 9, 2011 1 p.m. (eastern) Webcast: EPA Proposed NPDES CAFO Reporting Rule
November 17, 2011 1 p.m. (eastern) Webcast: EPA Proposed NPDES CAFO Reporting Rule

November 18, 2011 at1:30 p.m. (central). Livestock and Poultry Environmental Learning Center Webcast "Economics of Using and Transporting Manure."



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.

Plan to attend one of the many educational sessions at the 2011 Manure Expo.  CLICK TO ENLARGE

The crowd at the 2009 Manure Expo watches a demonstration of “injecting” solid feedlot manure.  Click to enlarge