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The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report (2002)

Chapter: Appendix D. Twenty-three Model Farms Described by EPA

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Suggested Citation:"Appendix D. Twenty-three Model Farms Described by EPA." National Research Council. 2002. The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report. Washington, DC: The National Academies Press. doi: 10.17226/10391.
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Appendix D
Twenty-Three Model Farms Described By EPA

 

Elements of Model Farms

Animal

Model Farm ID

Confinement and Manure Collection System

Solids Separation Activities

Manure Storage and/or Stabilization

Land Application

Beef

B1A

Drylot (scraped)

Solids separation for runoff (using a settling basin)

Storage pond and stockpile

Liquid and solid

Beef

B1B

Drylot (scraped)

No solids separation

Storage pond and stockpile

Liquid and solid

Dairy

D1A

Freestall barn (flush);

milking center (flush);

drylot (scraped)

Solids separation

Anaerobic lagoon and stockpile

Liquid and solid

Dairy

D1B

Freestall barn (flush);

milking center (flush);

drylot (scraped)

No solids separation

Anaerobic lagoon and stockpile

Liquid and solid
Page 99 Cite
Suggested Citation:"Appendix D. Twenty-three Model Farms Described by EPA." National Research Council. 2002. The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report. Washington, DC: The National Academies Press. doi: 10.17226/10391.
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Elements of Model Farms

Animal

Model Farm ID

Confinement and Manure Collection System

Solids Separation Activities

Manure Storage and/or Stabilization

Land Application

Dairy

D2A

Freestall barn (scrape);

milking center (flush);

drylot (scraped)

Solids separation

Anaerobic lagoon and stockpile

Liquid and solid

Dairy

D2B

Freestall barn (scrape);

milking center (flush);

drylot (scraped)

No solids separation

Anaerobic lagoon and stockpile

Liquid and solid

Dairy

D3A

Milking center (flush);

drylot (scraped)

Solids separation

Storage pond and stockpile

Liquid and solid

Dairy

D3B

Milking center (flush);

drylot (scraped)

No solids separation

Storage pond and stockpile

Liquid and solid

Dairy

D4A

Drylot feed alley (flush);

milking center (flush);

drylot (scraped)

Solids separation

Storage pond and stockpile

Liquid and solid

Dairy

D4B

Drylot feed alley (flush);

milking center (flush);

drylot (scraped)

No solids separation

Storage pond and stockpile

Liquid and solid

Poultry-broilers

C1A

Broiler house w/bedding

None

Covered cake and open litter

Solid

Poultry-broilers

C1B

Broiler house w/bedding

None

Covered cake

Solid

Poultry-layers

C2

Caged layer high rise house

None

None

Solid
Page 100 Cite
Suggested Citation:"Appendix D. Twenty-three Model Farms Described by EPA." National Research Council. 2002. The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report. Washington, DC: The National Academies Press. doi: 10.17226/10391.
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Elements of Model Farms

Animal

Model Farm ID

Confinement and Manure Collection System

Solids Separation Activities

Manure Storage and/or Stabilization

Land Application

Poultry-layers

C3

Caged layer house (flush)

None

Anaerobic lagoon

Liquid

Poultry-turkey

T1A

Turkey house w/bedding

None

Covered cake and open litter

Solid

Poultry-turkey

T1B

Turkey house w/bedding

None

Covered storage of cake

Solid

Swine

S1

Enclosed house (flush)

None

Anaerobic lagoon

Liquid

Swine

S2

Enclosed house (pit recharge)

None

Anaerobic lagoon

Liquid

Swine

S3A

Enclosed house (pull plug pit)

None

Anaerobic lagoon

Liquid

Swine

S3B

Enclosed house (pull plug pit)

None

External tank or pond

Liquid

Swine

S4

Enclosed house w/pit

None

None

Liquid

Veal

V1

Enclosed house (flush)

None

Anaerobic lagoon

Liquid

Veal

V2

Enclosed house w/pit

None

None

Liquid

 

SOURCE: Adapted from EPA (2001a, Table 1).
Page 98 Cite
Suggested Citation:"Appendix D. Twenty-three Model Farms Described by EPA." National Research Council. 2002. The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report. Washington, DC: The National Academies Press. doi: 10.17226/10391.
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Page 98
Page 99 Cite
Suggested Citation:"Appendix D. Twenty-three Model Farms Described by EPA." National Research Council. 2002. The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report. Washington, DC: The National Academies Press. doi: 10.17226/10391.
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Suggested Citation:"Appendix D. Twenty-three Model Farms Described by EPA." National Research Council. 2002. The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations: Interim Report. Washington, DC: The National Academies Press. doi: 10.17226/10391.
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This is an interim report of the ad hoc Committee on Air Emissions from Animal Feeding Operations of the National Research Council's Committee on Animal Nutrition. A final report is expected to be issued by the end of 2002. The interim report is intended to provide the committee's findings to date on assessment of the scientific issues involved in estimating air emissions from individual animal feeding operations (swine, beef, dairy, and poultry) as related to current animal production systems and practices in the United States. The committee's final report will include an additional assessment within eight broad categories: industry size and structure, emission measurement methodology, mitigation technology and best management plans, short- and long-term research priorities, alternative approaches for estimating emissions, human health and environmental impacts, economic analyses, and other potential air emissions of concern.

This interim report focuses on identifying the scientific criteria needed to ensure that estimates of air emission rates are accurate, the basis for these criteria in the scientific literature, and uncertainties associated with them. It also includes an assessment of the emission-estimating approaches in a recent U.S. Environmental Protection Agency (EPA) report Air Emissions from Animal Feeding Operations. Finally, it identifies economic criteria needed to assess emission mitigation techniques and best management practices.

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