820159_Odor Control Checklist_20200601

Swine Farm Waste Management — Odor Control Checklist
Permit No.: 82-159
Cause/Source BMP Option to Minimize Odor Comments Site Specific Practices
HOUSE / BARN — WASTE HANDLING
♦ Flush tanks
❑ Install flush tank covers
♦ Odorous Gases
❑ Flush pits at least 4 times per day
♦ Partial microbial
® Empty pits at least once every 7 days
decomposition
❑ Underfloor flush with pit ventilation
♦ Agitation of wastes
❑ Install/extend fill lines to near bottom of
tanks with anti -siphon vents
❑ Install covers on outside waste collection or
junction box
❑ Install sump tank covers for lift stations
♦ Ammonia
® Flush/recharge with treated effluent
❑ Treat waste in pits with proven biological or
chemical additive
❑ OtherBMPs— please describe
HOUSE / BARN — FLOOR AND INDOOR SURFACES
♦ Manure covered floors ❑ Scrape manure from alleys into pens daily
® Install fully slotted floor system
® Install waterers over slotted floor area
❑ Install feeders at high end of solid floors
♦ Odorous Gases ❑ Scrape manure buildup from floors and walls
❑ Keep floors dry
❑ Install underfloor ventilation for drying
❑ Replace bedding/scrape at frequency to
keep bedding dry
❑ Other BMPs — please describe
• Pit -flush systems
• Pit -flush systems
• Pit -recharge or "pull -plug" systems
• Monitor for any solids accumulation in pit
• Will move with other manure via pits
• Where applicable
• Aids in animal cleanliness
• Aids in animal cleanliness
• Solid floor/bedding systems
Swine AMOC Page 2 of 6 APPROVED — 7/25/2019

Swine Farm Waste Management — Odor Control Checklist
Permit No.: 82-159
Cause/Source
BMP Option to Minimize Odor
Comments Site Specific Practices
HOUSE / BARN — VENTILATION
♦ Dust
® Clean fans regularly—specifyfrequency
♦ Volatile/odorous gases
® Efficient air movement
® Install temperature and humidity sensors to
control ventilation
❑ Treat barn exhaust
• Examples: biofilters, wet scrubbing, windbreaks
• May reduce ventilation rate depending on method
❑ Other BMPs — please describe
HOUSE / BARN — FEED
♦ Dust
❑ Install feed covers
♦ Adsorbed Gases
® Keep outdoor feed storage covered except
• Required by rule 15A NCAC 02D .1802
When necessary to add/remove feed
❑ Minimize free -fall height of dry feed
❑ Install feed delivery downspout extenders
to the feed covers
® Remove spoiled/unusable feed on regular basis
❑ Feed pellets instead of dry meal
• May require third party input/approval
❑ Use feed additives
• May require third party input/approval
♦ Ammonia
❑ Use feed -reduced crude protein diet
• May require third party input/approval
❑ OtherBMPs— please describe
HOUSE / BARN —GENERAL
♦ Dust
® Install temperature and humidity sensors
• Maintain relative humidity at 40 to 65%
♦ Odorous Gases
to control ventilation
❑ Use ultraviolet light to treat indoor air
❑ Use indoor or outdoor electrostatic space
• Can be used to treat exhaust air
charge system
❑ OtherBMPs— please describe
Swine AMOC
Page 3 of 6 APPROVED — 7/25/2019

Swine Farm Waste Management — Odor Control Checklist
Permit No.: 82-159
Cause/Source BMP Option to Minimize Odor
Comments Site Specific Practices
LAGOON /WASTE STORAGE STRUCTURE
♦ Volatile Gases ® Maintain proper lagoon volume
❑ Minimize free -fall height of waste from
discharge pipe to lagoon surface
❑ Extend discharge point of pipe to below lagoon
liquid level
❑ Maintain proper surface area -to -volume ratio
❑ Use correct lagoon start-up procedures
❑ Aerate for odor control
® Manage sludge levels based on annual sludge
survey as required by permit
® Keep spilled feed or foreign debris out of lagoon
to prevent excess sludge accumulation
❑ Install/use solids separation system
❑ Use proven biological or chemical additives
❑ Use permeable lagoon covers (not a digester)
❑ Use impermeable lagoon cover or
anaerobic digester
❑ OtherBMPs—please describe
LAND APPLICATION
♦ Odorous gases ® Perform land application in accordance with
CAWMP
♦ Wind drift ® Pump intake near lagoon surface
❑ Pump from second stage lagoon
❑ Fallow good neighbor policy
❑ Operate at minimum recommended pressure
❑ Increase setbacks beyond those required by
statute, rule, or permit
Swine AMOC
• Sufficient liquid volume/depth is required
for proper anaerobic treatment
• Use caution not to scour or damage lagoon liner
• Monitor for any increase in rate of solids accumulation
• Methane can be flared if not utilized
• Required by rule iSA NCAC 02D .1802
.Avoid application on known weekends,
special days, or holidays/eves if possible
Page 4 of 6
APPROVED — 7/25/2019

Swine Farm Waste Management — Odor Control Checklist
Permit No.: 82-159
Cause/Source BMP Option to Minimize Odor Comments Site Specific Practices
LAND APPLICATION (CONTINUED)
® Apply during favorable wind conditions,
(especially for traveling guns or impact
sprinklers)
® When practical, apply waste on sunny days
rather than cool, overcast days
❑ When possible, apply waste mid -morning to
late -afternoon
❑ For traveling guns, use taper -ring or taper -bore
nozzles
❑ For traveling guns, use largest -available nozzle
that provides acceptable application uniformity
❑ Replace impact sprinklers with low -drift nozzles
on center pivots and linear move systems.
❑ Use hose -drag system
❑ Use injection method for waste application
❑ OtherBMPs— please describe
SLUDGE DISPOSAL
♦ Odorous gases ❑ Transport sludge in covered vehicles or tankers
❑ Apply in thin, uniform layers
❑ Incorporate land -applied sludge as soon as
practical after application, and in accordance
with permit.
❑ Use injection method for sludge application
❑ Dewater sludge prior to application
❑ Use alternatives to land application, such as
compost, gasification, energy generation, etc.
❑ OtherBMPs—please describe
• Recommend checking predicted average hourly
wind speed within 24 hours prior to
anticipated start
• Allows for vertical dissipation of odor
• Allows for better vertical dissipation of odor
• Less odor and drift than ring nozzles
• Speeds drying and prevents ponding
• Required within 48 hours or prior to next rain event,
whichever is first, for conventionally tilled
bare soils
Swine AMOC Page 5 of 6 APPROVED — 7/25/2019

ADDITIONAL INFORMATION
Air Management Practices Assessment Tool (AMPAT)
AHG-538-A Certification Training for Animal Waste Management Systems: Type A
EBAE 103-83 — Lagoon Design and Management for Livestock Manure Treatment and Storage
EBAE 128-88 —Swine Production Facility Manure Management: Pit Recharge -Lagoon Treatment
EBAE 129-88 —Swine Production Facility Manure Management: Underfloor Flush -Lagoon Treatment
EBAE Fact Sheet — Calibration of Manure and Wastewater Application Equipment
EBAE Fact Sheet — Swine Production Farm Potential Odor Sources and Remedies
INC NRCS Standard 359 — Waste Treatment Lagoon
NC NRCS Standard 380— Windbreak/Shelterbelt Establishment
NC NRCS Standard 422 — Hedgerow Planting
NC NRCS Standard 442 — Sprinkler System
Nuisance Concerns in Animal Manure Management: Odors and Flies; PRO107 1995 Conference Proceedings
Options for Managing Odor: A Report from the Swine Odor Task Force
AVAILABLE FROM:
www.extension.iastate.edu/ampat/
NC Division of Water Resources
www.bae.ncsu.edu
www.bae.ncsu.edu
www.bae.ncsu.edu
www.bae.ncsu.edu
www.bae.ncsu.edu
www.nres.udsa.gov
www.nres.udsa.gov
www.nres.udsa.gov
www.nres.udsa.gov
Florida Cooperative Extension Service
NC State University
Swine AMOC Page 6 of 6 APPROVED — 7/25/2019