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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 99
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 100
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).
Representative terms from entire chapter:
solids separation