“New livestock facility” – A livestock facility used for the first time, or for the first time in at least 5 years.
“NRCS” – The Natural Resource Conservation Service of the United States Department of Agriculture. Wisconsin livestock siting standards refer to NRCS Technical Guide standards.
“Pasture” – Land on which livestock graze or otherwise seek feed in a manner that maintains the vegetative cover over all of the grazing or feeding area.
“Premises ID” – The unique ID number assigned to your livestock facility under the Wisconsin Livestock Premises Registration Program (ATCP 17). Go to http://www.datcp.state.wi.us for more information. To register your livestock facility, go to http://www.wiid.org/. “Qualified nutrient management planner” - A person, other than the applicant, who is qualified under ATCP 50.48.
“Related livestock facilities” – Two or more livestock facilities that are owned or managed by the same person and meet any of the following criteria:
• They are located on the same tax parcel or adjacent tax parcels.
• They use any of the same livestock structures to collect or store manure.
• They generate manure that is applied to the same parcel of land.
“Separate Species Facility” - A distinct part of a livestock facility that meets all of the following criteria:
• It has only one of the following types of livestock, and that type is not found in any other part of the livestock facility:
• Cattle
• Swine
• Poultry
• Sheep
• Goats
• It has no more than 500 animal units.
• Its animal housing and manure storage structures, if any, are located at least 750 feet from livestock structures that are used by other parts of the livestock facility.
“Substantially altered” livestock structure – A livestock structure that undergoes a material change in construction or use such as:
• An increase in the capacity of a waste storage facility.
• The addition of a liner to a waste storage facility.
• An increase of more than 20% in the area or capacity of a livestock structure used to house, feed, or confine livestock or to store livestock feed.
• An increase of more than 20% in the number of animal units that will be kept in a livestock structure on at least 90 days in any 12- month period.
“Waste storage structure” – An embankment structure, excavated pit, dugout or fabricated structure that is used to store manure, milking center waste or other organic waste generated by a livestock facility. For the purposes of waste storage structure setback (application form, A-2) and worksheet 2, a “waste storage structure” does not include a structure used to collect and store waste under an animal housing facility, or a manure digester consisting of a sealed structure in which manure is subjected to managed biological decomposition.
“Waste storage facility” -- A waste storage structure and any attached piping or equipment used to load or unload the structure.
“Winter grazing area” – Cropland or pasture where livestock feed on dormant vegetation or crop residue, with or without supplementary feed, during the period October 1 to April 30. “Winter grazing area” does not include any of the following:
• An area, other than a pasture, where livestock are kept during the period from May 1 to September 30.
• An area which at any time has an average of more than 4 animal units per acre.
• An area from which livestock have unrestricted access to navigable waters of the state.
• An area in which manure deposited by livestock causes nutrient levels to exceed standards in ATCP 51.16.
“WPDES permit” – Wisconsin Pollutant Discharge Elimination System permit issued by DNR for a concentrated animal feeding operation over 1000 animal units, or for operations of any size that discharge pollutants directly to waters of the state.
_____________________________________________ _______________________
Signature of Applicant or Authorized Representative Date
TO COMPLETE THIS WORKSHEET, FOLLOW THESE STEPS:
Step 1: Complete Table A to determine the Predicted Odor from your livestock structures. Enter the Predicted Odor in Box 3 below (NOT Box 1).
Step 2: Complete Table B to determine your Separation Score. Enter your Separation Score in Box 1 below. (NOT Box 2).
Step 3: Enter your management credits in Box 2 (maximum 100 points). All applicants may enter 80 points for completing required incident response and employee training plans (described on page A-3). Applicants completing an optional odor management plan (described on page A-3), may add an additional 20 points. Applicants determine plan contents, as long as the plan addresses the required topics.
Step 4: Add Box 1 and Box 2. Subtract Box 3 and enter the total in Box 4. This is your Odor Score.
Box 1 Box 2 Box 3 Box 4
Separation Score Management Score Predicted Odor Odor Score
(from Step 2) (from Step 3) (from Step 1)
A local government must approve a livestock facility with an odor score of 500 or more (Box 4). You may add odor control practices to increase your odor score to 500 or more. A local government may approve, but is not required to approve, a livestock facility with an odor score less than 500 but not less than 470.
_____________________________________________ _______________________
Signature of Applicant or Authorized Representative Date
Worksheet 2 (continued)
Table B: Separation Score
Chart 1: Separation Score
Worksheet 2 (continued)
Chart 2: Odor Generation Numbers
Worksheet 2 (continued)
Chart 3: Odor Control Practices
*Smaller multiplier = more odor controlled (e.g. a multiplier of 0.4 represents a 60% control).
Innovative Odor Control Practices (all odor sources):
You may take credit for odor control practices not listed in Chart 3 if DATCP pre-approves a multiplier for each of those practices. Follow the procedure in ATCP 51.14(5)(c) to obtain DATCP approval. If you obtain DATCP approval, you may include the approved practice and multiplier in odor worksheet calculations in the same manner as for odor control practices listed in Chart 3 (attach DATCP approval to your application).
Worksheet 2 (continued)
Odor Control Practice Specifications
Odor control practices identified in Chart 3 must meet the following specifications:
Animal Housing
Diet manipulation (A1) – Limit protein in animal diet by one of the following means:
• Match nutrient supply with animal requirements.
• Formulate low-protein amino acid supplemented diets.
• Add phytase enzyme ingredients.
• Process ingredients in ways that limit protein content of processed feed.
• Use phase feeding.
• Use split sex feeding.
• Minimize feed wastage.
Bio-filter (B1) – Vent air from animal housing areas through a bio-filter consisting of compost and wood chips, mixed at a rate of 30:70 to 50:50 (ratio by weight of compost to wood chips). The mixture must be at least 40% moisture by weight. The bio-filter must be 10” to 18” thick, and must have an area of at least 50 to 85 sq. ft. per 1000 cu. ft. per minute (cfm) of airflow.
Vegetable oil sprinkling (B2) – Sprinkle vegetable oil on floors in animal housing areas (swine) each day. Apply oil at start-up rate of approximately 40 milliliters per square meter per day (mL/m2-day) in the first 1-2 days of each production cycle. During the remainder of each production cycle, apply oil at maintenance rate of 5 mL/m2-day. Avoid oil applications to pens near fans, to areas near heaters, and to areas surrounding feeders.
Fresh water flush (B3) – Use fresh water to flush manure from floors of animal housing areas into collection or waste storage structures. Flush at least 3 times a day, and more often if necessary, to prevent manure from drying and sticking to floors. Flush must be adequate to remove manure solids effectively.
Treated water flush (B4) – Use treated manure effluent to flush manure from floors of animal housing areas into collection or waste storage structures. Flush at least 3 times a day, and more often if necessary, to prevent manure from drying and sticking to floors. Flush with waste storage effluent treated by one of the following means:
• Solids Separation and Reduction (see E4 below).
• Aeration (see F1 below).
• Anaerobic digestion (see E1 below).
Air Dam (B5) – Erect and maintain a wall (typically a 10-foot x 10-foot pipe frame and tarpaulin) placed at the end of a swine-finishing building, immediately downwind of the exhaust to deflect air and odor plume. Replace material used for the barriers (tarpaulins on a frame of solid wood, for example) as needed, which may be from a few years to decades, depending on the material.
Windbreak (C1) – Maintain a solid or porous windbreak, 10 to 50 feet from the odor source, which reduces forward momentum of airflow and vertically disperses the odor plume. The length of a windbreak shall be at least half of the perimeter of the animal housing. A windbreak may be constructed of vegetation or other materials. Vegetation windbreaks must contain at least 3 rows of trees and shrubs, of both fast and slow-growing species, that are well suited for the site. Windbreaks must be designed and constructed according to NRCS Technical Guide Standard 380 (June, 2002).
Frequent cleaning of animal housing area (D1) – Scrape and remove manure from animal housing areas at least 3 times a day.
Worksheet 2 (continued)
Waste Storage Facilities
Anaerobic digestion (E1) – Subject manure to managed biological decomposition within a sealed oxygen-free container (“digester”). Anaerobic digestion must meet design and operational standards necessary to achieve adequate odor control, including requirements for solids concentration, flow rates, retention time, and minimum temperatures. Systems must meet the following:
• Plug flow digester. Treats manure with a total solids concentration of 8 to 14%. Must be kept in the digester for at least 20 days at a temperature of 95° to 104° F. (35° to 40° C). The digester’s ratio of flow path width to fluid depth must be between 3.5:1 and 5:1.
• Complete mix digester. Treats manure with a total solids concentration of 2.5 to 10%. Must be kept in the digester for at least 17 days at a temperature of 95° to 104° F. (35° to 40° C.). The digester must have appropriate mixing devices to ensure complete mixing.
• Fixed film digester. Treats manure with a total solids concentration of not more than 5%. Must be kept in the digester for 1 to 6 days at a temperature of 59° to 99° F (15° to 39° C). Microbial support material must have at least 3-inch openings.
• Other systems. Use proprietary design and performance specifications that are commonly accepted and provide adequate odor mitigation.
Chemical or biological additives (E2) – Apply, to stored manure, chemical or biological additives that are scientifically proven to be effective in reducing odor from that manure when applied under applicable conditions and in applicable amounts.
Compost (E3) – Aerobically treat solid or semi-solid manure to create compost. Compost must have a carbon: nitrogen ratio of 25:1 to 40:1, and must consist of at least 40 to 60% moisture by weight. Composted material must be held at a temperature of more than 130° F. (54° C.) for more than 5 days.
Solids Separation and Reduction (E4) – Reduce the solid content of stored manure to an average of less than 2% solids through separation, multi-tiered pits or other means.
Water Treatment (E5) – Install and use a physical, chemical or biological process that removes the majority of contaminants from the waste stream, resulting in a liquid effluent meeting surface water discharge standards. The remaining solid fraction or sludge must be accounted for based on its form, and the management it is subject to.
Aeration (F1) – Use aeration equipment to maintain aerobic activity in stored manure. Aeration must maintain an average of 2 milligrams of dissolved oxygen per liter of manure stored in the upper foot of manure stored in the aerated structure between April and October.
