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



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OCR for page 98
The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations 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

OCR for page 98
The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations   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

OCR for page 98
The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations   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).