Odor and Nutrient Management Newsletter

Summer 1999

Manure management plans due September 1

by Karen Grimes, Iowa Department of Natural Resources

Starting September 1, animal producers must have a manure management plan filed with the Department of Natural Resources (DNR) prior to applying manure from a confinement operation. Even if manure will not be applied until after mid-November, all producers who are required to have a plan must submit it to the DNR by November 15, 1999.

The following confinement operations must have plans:

    • any operation with an animal weight capacity of more than 400,000 pounds of cattle or 200,000 pounds of all other species (i.e., 1,333 finishing hogs) that was built or expanded after May 31, 1985;
    • any new operation that is required to have a permit; or
    • any out-of-state operations that apply manure in Iowa unless the operation has a capacity equal to or less than 400,000 pounds of cattle or 200,000 pounds of all other species.

Open-lot livestock are not included when calculating the animal weight capacity to determine if a plan is needed.

All manure management plans must be filed on forms prepared by the DNR. The form can be picked up at your local Extension or Natural Resource Conservation Service office. Additional copies are available at the six DNR field offices and on the DNR Web site at www.state.ia.us/government/dnr/organiza/epd/wastewtr/feedlot/feedlt.htm.

The plans were due on July 1, 1999. However, because the DNR was late in making the forms available, they recognized that producers would have difficulty meeting that deadline. Although the DNR could not change this statutory deadline, the department adopted an enforcement policy that allows producers to land apply manure until September 1, 1999, without a plan.

Producers should be aware that they must follow state rules regarding manure application, including the new separation distances and application of manure so that it does not pollute waters of the state. Producers who have already filed a plan may need to update it to comply with the law (House File 2494) passed in the spring of 1998.

For more information, contact me at 515-281-5135 or Kevin Baskins at 515-281-8395.

Frequently Asked Questions About Manure Management Plan Requirements

Q. Iíve been trying to use the manure management plan form on the DNR Web site, but I canít open the files. How can I open the form so that I can type my information directly into it?

A. Actually, it is easy, just save the files to a disk. Then you can open the form and add the numbers you want. Save your information under a file name of your choice.

Q. I own 800 hogs (120,000 pounds) at one place and another 800 hogs at another location. Because the facilities at each place are under the 200,000-pound capacity limit for hogs, I donít think I need a plan. Do I?

A. You need to determine if you have one operation. If the facilities are "adjacent" (Test 1) or if they have a common area or system for manure disposal (Test 2), they are considered one operation and need a plan.

Test 1 Adjacency: To decide if the facilities are adjacent, measure the shortest distance between the two facilities. If the distance is less than 1,250 feet, then the facilities are adjacent. This is one operation because the facilities are under your ownership and they are adjacent. Therefore, you will need a manure management plan because the total animal weight capacity of the operation, including both facilities. Because it is more than 200,000 pounds (400,000 pounds for cattle) you will need to submit a manure management plan.

Test 2 Common manure disposal: If the two facilities are more than 1,250 feet apart (not adjacent) and do not use a common area or system for manure disposal, they can be considered as separate operations for the requirements for a manure management plan. Because each facility is less than 200,000 pounds, you are not required to have a plan.

Test 3 Common manure disposal: If the two facilities use a common area or system for manure disposal, they are considered one operation, regardless of the distance between the facilities. However, if the facilities are more than 1,250 feet apart, the operator can keep these two facilities separate by making sure that the disposal areas are distinctly separate and that the same system is not being used for disposal.

Note that this question was answered based on smaller confinement facilities. As the combined animal weight capacity of the facilities increases to more than 625,000 pounds, greater distances between the facilities may be required.

Calculating animal weight capacity

For one species, multiply the maximum number of animals that you will confine at any one time (animal capacity) by the average weight during the production cycle. For more than one species, add the animal weight capacities for all species. For example, Bill wants to construct a confinement feeding operation with two confinement buildings and an earthen manure storage basin. The capacity of each building will be 900 market hogs. The hogs enter the building at 40 pounds and leave at 250 pounds. Thus, the average weight during the production cycle is 145 pounds for this operation. The animal weight capacity of the operation is 145 pounds multiplied by 1,800 for a total of 261,000 pounds.

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Iowa Manure Matters: Odor and Nutrient Management is published by Iowa State University Extension, with funding support from the USDA Natural Resource Conservation Service through Cooperative Agreement No. 74-6114-8-22. To subscribe or change the address of a current subscription, write to Angela Rieck-Hinz, 2104 Agronomy Hall, Iowa State University, Ames, Iowa, 50011-1010 or call 515-294-9590, fax 515-294-9985 or email: amrieck@iastate.edu. Please indicate you are inquiring about the Odor and Nutrient Management Newsletter. The newsletter's coordinators are Angela Rieck-Hinz, extension program specialist, Department of Agronomy, Wendy Powers, environmental extension specialist, Department of Animal Science, and Robert Burns, Department of Agricultural and Biosystems Engineering; the editor is Jean McGuire, the subscription manager is Rachel Klein, the production designer is Beth Kroeschell, and the web page designer is Liisa Jarvinen.

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