Idaho Administrative Code › Title IDAPA 58 - Environmental Quality, Department of › Rule 58.01.01 - RULES FOR THE CONTROL OF AIR POLLUTION IN IDAHO › Section 58.01.01.764 - DAIRY FARM BEST MANAGEMENT PRACTICES

Current through August 31, 2023
01.
BMPs
. Each dairy farm subject to Sections
			 760 through
			 764, or that otherwise obtains a
			 permit by rule under these sections, must employ BMPs for the control of
			 ammonia to total twenty-seven (27) points. Points may be obtained through third
			 party export with sufficient documentation. The table located at Subsection
			 764.02. lists available BMPs and
			 the associated point value. As new information becomes available or upon
			 request, the Department may determine a practice not listed in the table
			 constitutes a BMP and assign a point value. (3-28-23)
02.
Table - Ammonia Control Practices
			 for Idaho Dairies
.
Ammonia Control
							 Effectiveness
1
System
Component
Open Lot
Freestall
							 Scrape
Freestall
							 Flush
Compliance
							 Method3
Waste Storage and Treatment Systems
Synthetic Lagoon Cover
15
20
20
1
GeoteXtile Covers
10
13
13
1
Solids Separation
3
3
3
3,4
Composting
4
4
4
1
Separate Slurry and Liquid Manure
							 Basins
6
10
-
1
In-House Separation
0
12
0
1
Direct Utilization of Collected
							 Slurry
6
10
-
1,3,4
Direct Utilization of Parlor
							 Wastewater
10
10
10
1
Direct Utilization of Flush Water
8
0
13
3, 4
Anaerobic Digester
-
-
-
-
Anaerobic Lagoon
-
-
-
-
Aerated Lagoon
10
12
15
2
Sequencing-Batch Reactor
15
20
20
2
Lagoon Nitrification/Denitrification
							 Systems
15
20
20
2
Fixed-Media Aeration Systems
15
20
20
2
Zeolite Treatment of Liquid Manure 1lb/
							 cow/day
4
5
5
2
Zeolite Treatment of Liquid Manure 2lb/
							 cow/day
8
10
10
2
General Practices
Vegetative or Wooded Buffers
							 (established)
7
7
7
1
Vegetative or Wooded Buffers
							 (establishing)
2
2
2
1
Alternatives to Copper Sulfate
-
-
-
-
Freestall Barns
Scrape Built Up Manure
-
3
3
1
Frequent Manure Removal
UD
UD
UD
-
Tunnel Ventilation
-
-
-
-
Tunnel Ventilation w/Biofilters
-
10
10
1
Tunnel Ventilation w/Washing Wall
-
10
10
3,4
Open Lots and Corrals
Rapid Manure Removal
4
2
2
1,2
Corral Harrowing
4
2
2
1
Surface Amendments
10
5
5
2
In-Corral Composting / Stockpiling
4
2
2
1
Summertime Deep Bedding
10
5
5
1
Animal Nutrition
Manage Dietary Protein
2
2
2
2
Composting Practices
Alum Incorporation
12
8
6
2
Carbon:Nitrogen Ratio (C:N) Ratio
							 Manipulation
10
7.5
5
2
Composting with Windrows
-
-
-
-
Composting Static Pile
6
4.5
3
1
Forced Aeration Composting
10
7.5
5
1
Forced Aeration Composting with
							 Biofilter
12
8
6
1
Zeolite Incorporation
12
8
6
2
Land
							 Application2
Soil Injection - Slurry
10
15
7.5
2
Incorporation of Manure within 24 hrs
10
10
10
2
Incorporation of Manure within 48 hrs
5
5
5
2
Nitrification of Lagoon Effluent
10
10
15
3, 4
Low Energy/Pressure Application
							 Systems
7
7
10
1
Freshwater Dilution
5
8
8
1,2
Pivot Drag Hoses
8
8
10
1
Subsurface Drip Irrigation
10
10
12
1
Notes:
1. The ammonia emission reduction effectiveness of
							 each practice is rated numerically based on practical year-round
							 implementation. Variations due to seasonal practices and expected weather
							 conditions have been factored into these ratings. Not implementing a BMP when
							 it is not practicable to do so, does not reduce the point value assigned to the
							 BMP, nor does it constitute failure to perform the BMP. UD indicates that the
							 practice is still under development.
2. Land application practices assume practice is
							 conducted on all manure; points will be pro-rated to reflect actual waste
							 treatment; points can be obtained on exported material with sufficient
							 documentation.
3. Method used by inspector to determine
							 compliance
1=Observation by Inspector
2=On-Site Recordkeeping Required
3, 4=Deviation Reporting Required. Equipment upsets
							 and/or breakdowns must be recorded in a deviation log and if repaired in a
							 reasonable timeframe does not constitute non-compliance with this
							 rule.
(3-28-23)