## Great Basin Unified Air Pollution Control District

C ONSERVATION 

## M ANAGEMENT 

## P RACTICES
FOR 

## F ARMS IN 

## I NYO 

## , M ONO AND 

## A LPINE 

## C OUNTIES



## P ROGRAM 

## D ESCRIPTION AND 

## P LAN 

## A PPLICATION 

## F ORMS



### December 19, 2008

157 Short Street, Bishop, California 93514 Tel: (760) 872-8211 E-mail: farm@gbuapcd.org

### C ONSERVATION 

### M ANAGEMENT 

### P RACTICES
FOR 

### F ARMS IN 

### I NYO 

### , M ONO AND 

### A LPINE 

### C OUNTIES 

### P ROGRAM 

### D ESCRIPTION AND 

### P LAN 

### A PPLICATION 

### F ORMS

The very nature of producing food and fiber crops generates dust and small particulate matter, commonly referred to as PM-10 (Particu late Matter with an average size of 10 microns or less—about one-seventh the diameter of a human hair). For many years farmers have worked to reduce the amount of dust gene rated from agricultural practices as a means of preserving topsoil, controlling certain dus t-loving pest populations and maintaining good neighbor relations.

In California, over the last few years atte ntion has been focused on reducing dust and PM-10 emissions from on-farm activ ities as part of the effort to help improve the state’s air quality. Many areas of the state will never attain the federal or state PM-10 standards unless agricultural activities implement additional dust control measures. In addition, as more land is developed next to and within agricultural areas, dust that in the past did not impact people in their homes or at thei r jobs, is now having a direct impact on people’s health. In 2004, the state passed a law known as SB 700 that makes agricultural operations subject to the same air pollution requirements as other commercial and industrial operations and requires farm activities to implement add itional measures to control air pollution.

The Great Basin Unified Air Pollution Control District (serving all of Alpine, Inyo and Mono Counties) has adopted rules to control du st emissions from agricultural practices in an effort to attain and mainta in the federal and state standard s for PM-10. The rules, Rule 502 (Conservation Management Practices) and Rule 307 (Conservation Management Practices Plan Fee), require farmers to implement and document an annual plan to reduce dust and PM-10 emissions from on-farm s ources, such as from unpaved roads and equipment yards, during land preparation, ha rvest activities and from other cultural practices. These plans are known as Conserva tion Management Practices (CMP) Plans. In order to recover the cost of plan processing and field inspections, the Air District will collect fees from those farms that mu st comply with the CMP requirement.

► What is required? Farm operators with 40 acres or more outside of resid ential areas or 10 acres or more within residential areas (5 or more residences within 1⁄4 mile of farm boundaries) of contiguous, or adjacent, farmland are requi red to prepare and implement CMP Plans for each crop they farm.

► Conservation Management Practices Plan A Conservation Management Practice is an acti vity or practice that farmers will implement on their farms to help reduce dust emissions. Examples of CMPs include activities that reduce or eliminate the need to mo ve or disturb the soil; activiti es that protect the soil from wind, such as wind breaks and wetting the so il; equipment modifications that physically produce less dust; application of dust suppressant s; speed reductions on unpaved roads andyards; and activities that reduce agricultural chemical applicati ons through use of integrated pest management practices.

This packet identifies the currently accep ted, crop-specific pract ices to reduce PM-10 emissions in each type of farming activity. The CMPs were developed by Air Districts throughout the state, representatives from the USDA-Natural Resources Conservation Service, Resource Conservation Districts, agricultural organiza tions and commodity groups, and other state and federal agencies. Th e latest list of CMPs can also be found on the California Air Pollution Control Officer’s Association (CAPCOA) Agricultural Sources Clearinghouse of Air Po llution Reduction Methods at: www.capcoa.org/Agclearinghouse/index.html

In order to assist farm opera tors with the prepar ation of CMP Plans, the District has prepared forms for Alfalfa (CMP 1) and Field and Row Crops (CMP 2). Additional forms for other crops or operations will be prepared as needed or upon request. The use of these forms is optional. Any CMP plan that meets the requirements of District Rule 502 may be submitted. Blank forms are included in this ha ndout and may be photocopied as needed. The forms can also be downloaded from the Air District website located at www.gbuapcd.org/farm and filled in electronically.

Depending on the crop, farmer s are required to implement five CMPs, including one from each of the following categories:

• Land preparation and cultivation

• Harvest activities

• Unpaved roads

• Unpaved equipment yards

• Other cultural practices

Confined animal feed operations (CAFOs) ar e also subject to the requirements of Rule 502. CAFO operators should contact the District before preparing a plan to discuss these requirements. Each farmer with 40 or more contiguous acres outside residential areas or 10 or more acres near residential areas must complete a CMP Pl an. Residential areas are defined as five or more residences within one-quarter mile of the farms boundaries. CM P Plans must include the following information:
1) a map of the operation that designates where each CMP is being implemented; 2) the General Information form (CMP A); 3) the Unpaved Roads and Unpaved Vehicle/ Equipment Areas form (CMP B); and 4) a form for each crop farmed (numbered CMP forms)

A list of approved dust suppressants availabl e for use to help re duce PM-10 emissions from unpaved roads and equipment yards is av ailable upon request from the District or from our website at: www.gbuapcd.org/farm/Dustsuppressantproducts.pdf

.The CMPs were designed to reduce air pollution and to provide farmers with flexibility in selecting measures. If a CMP in a category can't be implemented, then a grower may select an alternate CMP from another cate gory. To allow flexibility and innovation, there is an “Other” practice in each category, which may be used if the new practice can show equal or greater emission reductions than the currently approved practice, and is approved by the District's Air Pollution Control Officer (APCO).

► Deadlines The CMP program phases in over a three year period. For agricultural operations in the Owens Valley PM-10 Planning Area (the sout hern Owens Valley between Tinemaha and Haiwee reservoirs, requirements begin in January 2006. For the Mono Basin, Coso Junction and Mammoth Lakes areas, requireme nts go into effect in January 2007. For the balance of the District, the CMP Plan rule is effective in Januar y 2008. Please contact the District to determine which area your operation falls into.

► Costs and fees
There is a flat fee (call the District to get the current fees quoted) for initial review and approval of a CMP Plan. This covers the cost of District personnel reviewing the plan and the first year of field inspections. The fee must be paid upon submittal of the CMP plan for review.

Every year a CMP Plan annual renewal fee (call the Dist rict to get the current fees quoted) must be submitted to the Air District . The District will invoice approved plan holders for the annual fee. After five years, if there has been no change in the CMP plan and no CMP plan violations, the annual renewal fee will be reduced.

A CMP Plan may be modified and resubmitted to the Air District at no cost anytime a practice or crop has changed. No CMP plan fees will be required if a District Permit to Operate is required for the operation (this w ould apply to very la rge operations only).

► Contact information District staff can assist anyone that needs he lp with the preparation of a CMP plan. Plans and inquiries should be directed to the District’s Bishop o ffice. Contact information is:

Great Basin APCD 157 Short Street Bishop, CA 93514 Tel: 760-872-8211 Fax: 760-872-6109 E-mail: farm@gbuapcd.org Website: www.gbuapcd.org/farm

### C ONSERVATION 

### M ANAGEMENT 

### P RACTICES 

### P LAN 

### A PPLICATION 

### F ORMS

The following forms are provided to assist ag ricultural operators in the Great Basin Air Pollution Control District with the prepara tion of Conservation Management Practices Plans.

The use of these forms is optional. Any C onservation Management Practices plan that meets the requirements of District Rule 502 may be submitted. Operators with crops other than alfalfa, field crops or row crops should contact the Distri ct. Confined Animal Feed Operations should also contact th e District before preparing a plan.157 Short Street, Bishop, California 93514 Tel: (760) 872-8211 Fax: (760) 872-6109 E-mail: farm@gbuapcd.org CMP-A Revised: December 19, 2008 

### Great Basin Unified Air Pollution Control District 

### CONSERVATION MANAGEMENT P RACTICES PLAN APPLICATION

G ENERAL 

### I NFORMATION A Conservation Management Practices (CMP) plan is a require ment for all agricultural operation sites as specified in Section 5.0 of District Rule 502. The goal of this CMP plan is to reduce sources of PM 10 emissions from agricultural operations. Attach CMP-A, B, C and all other applicable CMP Supplemental Application Forms to this sheet. By signing below, the applicant agrees to implement all C onservation Management Practices checked on the attached sheets. A fee of ( call the District to get the current fees quoted) is due with submittal of this plan to cover the District’s cost of plan processing and field inspection for the first year.

Name of Facility:
Facility Location:
Total Farm Acreage:
Mailing Address:
City/State/Zip code:

Phone: Fax:
Other (Cell): E-mail:
Person Responsible: Title:
Signature: Date:
Please list the following information for the persons responsible for: Plan Preparation: Plan Implementation: Same as Person Responsible Above? Same as Person Responsible Above?

Name: Name:

Title: Title:

Address: Address:
City/State/Zip code: City/State/Zip code:

Phone: Phone:

Fax: Fax:
Other (Cell): Other (Cell):

FOR DISTRICT USE ONLY

This CMP plan application has been verified to contain all supporting information required by the APCO to evaluate the application. CMP-A, B and C attached. All other appropriate CMPs attached. Fee paid. Date:

______

Reviewer: Initials: ____________ Date:

APCO approval: Date: CMP ACMP-B Revised: June 10, 2005 

### Great Basin Unified Air Pollution Control District Supplemental Application Form

Conservation Mana gement Practices: UNPAVED ROADS AND UNPAVED VEHICLE/ EQUIPMENT AREAS

Farm Name: CMP Plan Years: to
Unpaved Road Mileage: Unpaved Vehicle/Equipment Areas Acreage:

Unpaved

Roads If daily vehicle trips are greater than or equal to75 on unpaved roads, select at least one of the following: Dust suppressant, mi Washed gravel, mi Paving, mi Water, mi Road oil, mi Other (special approval reqd.), mi

Please describe the specifics of the practice(s) chosen above:

If daily vehicle trips are less than 75 on unpaved roads, select at least one of the following controls: Access restriction (public access) mi Road oil, mi Chips/mulches, mi Speed limit posted, mi Dust suppressant, mi What speed? mph (15 mph or less) Less than 10 vehicle trips on any day, mi Track out control, mi Organic materials, mi Water, mi Paving, mi Washed gravel, mi Polymers, mi Wind barrier, mi Other (special approval reqd.), mi Please describe the specifics of the practice(s) chosen above:

Unpaved Vehicle/ Equipment Areas If average daily vehicle trips (on an annual basis) are ≥ 50 on unpaved equipment yards, or if average daily trips (on an annual basis) are ≥ 25 by three or more axle vehicles, or if maximum daily trips on any day ≥ 150 during a 30 day period or less, select at least one of the following controls. Dust suppressant, ac Vegetative material, ac Paving, ac Washed gravel, ac Road oil, ac Water, ac Other (special approval reqd.), ac Please describe the specifics of the practice(s) chosen above:

If average daily vehicle trips (on an annual basis) are < 50 on unpaved equipment yards, or if average daily trips (on an annual basis) are < 25 by three or more axle vehicles, or if maximum daily vehicle trips on any day are < 150 during a 30 day period or less, select at least one of the following controls: Chips/mulches, ac Speed limit posted, ac Less than 10 vehicle trips on any day, ac What speed? mph (15 mph or less) Organic material, ac Paving, ac Water, ac Polymers, ac Washed gravel, ac Restricted access, ac Wind barrier, ac Road oil, ac Other (special approval reqd.), ac Please describe the specifics of the practice(s) chosen above: CMP BCMP-1 Revised: May 16, 2005 

### Great Basin Unified Air Pollution Control District Supplemental Application Form



## Conservation Management Practices: ALFALFA

Farm Name: CMP Plan Years: to
Maximum Crop Acreage:
Fallow Acreage Last Planted in Alfalfa:

Land Preparation/

Cultivation Select at least one additional of the following CMPs. Note: 100% of the maximum crop acreage must be covered by the selected CMPs. Cessation of activities during high winds, ac Multiple CMPs in another category Chemigation/Fertigation, ac Night farming, ac Combined operations, ac Non-tillage/chemical tillage, ac Conservation irrigation, ac Soil moisture management Equipment change/tech. improvements, ac Other (special approval reqd.), ac Please describe the specifics of the pr actice(s) chosen above:

Harvest Select at least one of the following CMPs. Note: 100% of the maximum crop acreage must be covered by the selected CMPs. Combined operations, ac Multiple CMPs in another category, ac Equipment change/tech. improvements, ac Night harvesting, ac Green chop, ac Shuttle system, ac Large bales, ac Other (special approval reqd.), ac Please describe the specifics of the pr actice(s) chosen above:

Other Select at least one of the following CMPs. Note: 100% of the maximum crop acreage must be covered by the selected CMPs. Conservation tillage, ac Organic practices, ac Cover crop, ac Surface roughening, ac Fallowing land, ac Time of disturbance/planting ac Multiple CMPs in another category Other (special approval reqd.), ac Please describe the specifics of the practice(s) chosen above: CMP 1CMP-2 Revised: May 16, 2005 

### Great Basin Unified Air Pollution Control District Supplemental Application Form



## Conservation Management Practices: FIELD AND ROW CROPS

Farm Name: CMP Plan Years: to
Maximum Crop Acreage:
Fallow Acreage Last Pl anted in Field/Row Crops:

Land Preparation/

Cultivation Select at least one of the following CMPs. Note: 100% of the maximum crop acreage must be covered by the selected CMPs. Bed/row size or spacing, ac Equipmt change/tech. imprvmnts, ac Cessation of activities, ac Multiple CMPs in another category Chemigation/fertigation, ac Mulching, ac Combined operations, ac Night farming, ac Conservation irrigation, ac Non-tillage/chemical tillage, ac Conservation tillage, ac Transplanting, ac Cross wind stripcropping, ac Other (special approval reqd.), ac Please describe the specifics of the practice(s) chosen above:

Harvest Select at least one of the following CMPs. Note: 100% of the maximum crop acreage must be covered by the selected CMPs. Combined operations, ac Pre-harvest soil preparation, ac Equipment change/tech. improvements, ac Shed packing, ac Hand harvesting, ac Shuttle system, ac Multiple CMPs in another category Other (special approval reqd), ac Night harvesting, ac Please describe the specifics of the practice(s) chosen above:

Other Select at least one of the following CMPs. Note: 100% of the maximum crop acreage must be covered by the selected CMPs. Cover crops, ac Soil moisture management, ac Fallowing land, ac Surface roughening, ac Multiple CMPs in another category Time of disturbance/planting, ac Non-tillage/chemical tillage, ac Wind barrier, ac Organic practices, ac Other (special approval reqd), ac Please describe the specifics of the practice(s) chosen above: CMP 2

## Great Basin Unified Air Pollution Control District

L IST OF 

## C ONSERVATION 

## M ANAGEMENT 

## P RACTICES
FOR 

## A GRICULTURAL 

## O PERATIONS



### Including Best Available Control Measures (BACM) and

Best Available Retrofit Control Technology (BARCT) for Agricultural Practices

Adapted from the California Air Pollution Control Officer’s Association (CAPCOA) Agricultural Sources Clearinghouse of Air Pollution Reduction Methods http://www.capcoa.org/ag.php



### December 19, 2008Great Basin Unified Air Pollution Control District BACM/BARCT List of Conservation Man agement Practices for Agricultural Operations

The CMP operation types include: A. Crop Farming (field/row crops and orchard/vineyard crops) B. Confined Animal Facilities (dair y, feedlot and poultry operations) C. Other Agricultural Activities

The CMP categories for each CMP operation type are:

A. Crop Farming 1. Field/row crops a. Disking, tilling and land preparation b. Harvesting 2. Orchard/vineyard crops a. Disking, tilling and land preparation b. Harvesting 3. Land application of fe rtilizers and pesticides

B. Confined Animal Facilities 1. Feed preparation, storage and handling 2. Manure storage and handling 3. Waste management practices

C. Other Agricultural Activities 1. Storage piles (piles of bulk materials such as dirt, aggregate, etc, excluding manure) 2. Unpaved roads 3. Unpaved traffic areas (parki ng lots, staging areas, etc.) 4. Open burning 5. Internal combustion enginesA. CROP FARMING 1. F IELD /R OW C ROPS a. D ISKING /T ILLING /L AND P REPARATION

Alternate Till: Tilling alternate rows for weed management allows for approximately a 50% reduction in field activity.

Bed/Row Size or Spacing: Spacing adjustments reduce the number of passes and soil disturbances by increasing plant density/canopy through reduction of row width.

Cessation of Activities: No disking, tilling or other land pr eparation activiti es shall take place when active wind erosion is observed on a field and visible particulate matter leaves the pr operty from which it originates.

Chemigation/Fertigation Application of chemicals through an irrigation system reduces the need to travel in-fie ld for application purposes.

Combined Operations: Combine equipment to perform several operations during one pass, thereby reducing the number of passes necessary to cultivate the land.

Conservation Irrigation: Conserving water through dri p, sprinkler, underground lines, conserves water and reduces w eed population and need for tillage.

Conservation Tilla g e (no tillage or minimum tillage): Reduces the number of passes and the amount of so il disturbance. Improves soil because it retain s plant residue and increases organic matter.

Cover Crops: Use seeding or natural vegetation/re growth of plants to cover soil surface and reduce wind erosion of soil.

Cross Wind Stripcropping: Establish crops in strips across the prevailing wind direction and arranged so that strips suscepti ble to wind erosion are alternated with strips resistant to wind erosion.

Equipment Changes/Technological Improvements: Use larger equipment, modify land planing and land leveling, matching the equipment to row spacing to reduce the number of
passes.

Fallowing Land: Temporary or permanent removal from production eliminates entire operation/passes or reduc es soil disturbing activities.

Mulching/Crop Residue Management: Applying or leaving plant residue or other material on the soil surface. Reduces wind entrainment of dust, and reduces weed competition.A.1.a. CROP FARMING: F IELD /R OW C ROPS : D ISKING /T ILLING /L AND P REPARATION (C ONTINUED )

Night Farming: Operate at night when moisture levels are higher and winds tend to be lighter, thereby reducing dust emissions.

Non-tillage/Chemical Tillage: Use flail mower, low volume sprayers, or heat delivery systems (as harvest pre-conditioner). Reduces or eliminates number of soil tillage passes.

Organic Practices: Use biological control methods or non-chemical control methods. Reduces chemical use and number of application
passes.

Ridge Roughness: Establish ridges by normal tillage and planting equipment as close as perpendicular as possible to the direction of erosive winds.

Soil Amendments: Apply organic or chemical materials to soil (e.g., gypsum, lime, polyacrylamide) to improve soil, increase moisture retention.

Soil Moisture Management: Ensure adequate soil moisture levels at the time of tillage or soil maintenance to reduce dust emissions.

Surface Roughening: In wind-prone areas, conduct surface roughening by bedding, rough disking, or tillage that leaves the surface covered with stable clods.

Time of Disturbance/Planting: Time planting to coincide with the time of year when PM concentrations are less.

Transplanting: Planting plants already in the growth state reduces number of passes and soil disturbances compared to seeding operations.

Wind Barriers: Plant or maintain perennial or annual plants interspersed throughout a crop field as close to perpendicula r as practical to the direction of prevailing winds.A. CROP FARMING 1. F IELD /R OW C ROPS b. H ARVESTING

Baling/Large Bales: Use balers to harvest crop, reducing PM10 emissions from crops traditionally harvested by chopping, truck passes, and residue burning.

Combined Operations: Combine equipment to perform several operations during
one pass. Equipment Changes/Technological Improvements: Modify equipment such as combines or cotton pickers, and harvesting equipment; increase equipment size to reduce number of passes; other t echnological improvements.

Fallowing Land: Temporary or permanent removal from production (e.g., vineyard pull-out, wildlife wetlands conservation program) eliminates entire operation or substantially reduces activities.

Green Chop: Harvest a forage crop without allowing it to dry in the field; reduces multiple equipment passes.

Hand Harvesting: Harvest crop by hand thereby reducing soil disturbances by equipment.

Night Harvesting: Implement cultural practices at night or when the humidity is high.

Pre-Harvest Soil Preparation: Apply a light amount of water or other stabilizing material to soil prior to harvest.
Shed Packing: Pack commodities in a covered or closed area.
Shuttle System/Larger Carrier: Haul multiple or larger trailers/bins per trip thereby reducing the number of trips.A. CROP FARMING 2. O RCHARD /V INEYARD C ROPS

a. D ISKING /T ILLING /L AND P REPARATION

Bed/Row Size or Spacing: Spacing adjustments reduce the number of passes and soil disturbances by increasing plant density/canopy through reduction of row width.

Cessation of Activities: No disking, tilling or other la nd preparation ac tivities shall take place when active wind erosion is observed on a field and visible particulate matte r leaves the property from which it originates.

Cover Crops: Use seeding or natural vegeta tion/regrowth of plants to cover soil surface and reduce wind erosion of soil.

Equipment Changes/Technological Improvements: Use larger equipment, modify land planing and land leveling, matching the equipment to row spacing to reduce the number of passes.

Fallowing Land: Temporary or permanent removal from production eliminates entire operation/passe s or reduces soil disturbing activities.

Floor Management: Smoothing and flattening the soil surface after nut harvest to remove post-harvest residue. Reduces number of passes through elimination of disking.

Grinding/ Chipping/ Shredding: Grind/chip/shred orchard pruni ngs and incorporate into the soil. Reduces PM from burning crop residues.

Mulching/Crop Residue Management: Applying or leaving plant resi due or other material on the soil surface. Reduces wind entrainment of dust, and reduces weed competition.

Night Farming: Operate at night when moisture levels are higher and winds tend to be lighter, thereby reducing dust emissions.

Organic Practices: Use biological control methods or non-chemical control methods. Reduces chemical use and number of application
passes.B.2.a. CROP FARMING: O RCHARD /V INEYARD C ROPS : D ISKING /T ILLING /L AND P REPARATION (C ONTINUED )

Reduced Pruning: Reduce frequency of pruning to one time a year, or once every two years.

Ridge Roughness: Establish ridges by normal tillage and planting equipment as close as perpendicular as possible to the direction of erosive winds.

Soil Amendments: Apply organic or chemical materials to soil (e.g., gypsum, lime, polyacrylamide) to improve soil, increase moisture retention.

Soil Moisture Monitoring: Ensure adequate soil moisture levels at the time of tillage or soil maintenance to reduce dust emissions.

Surface Roughening: In wind-prone areas, conduct surface roughening by bedding, rough disking, or tillage that leaves the surface covered with stable clods.

Time of Planting: Time planting to coincide with the time of year when PM concentrations are less.A. CROP FARMING 2. O RCHARD /V INEYARD C ROPS b. Harvesting

Combined Operations: Combine equipment to perform several operations during
one pass.

Equipment Changes/Technological Improvements: Modify equipment such as combines or cotton pickers, and harvesting equipment; increase equipment size to reduce number of passes; other t echnological improvements.

Fallowing Land: Temporary or permanent removal from production (e.g., vineyard pull-out, wildlife wetlands conservation program) eliminates entire operation or substantially reduces activities.

Floor Management: Smoothing and flattening the soil surface after nut harvest to remove post-harvest residue. Reduces number of passes through elimination of disking.

Hand Harvesting: Harvest crop by hand thereby reducing soil disturbances by equipment.

Night Harvesting: Implement cultural practices at night or when the humidity is high.

Pre-Harvest Soil Preparation: Apply a light amount of water or other stabilizing material to soil prior to harvest.

Shed Packing: Pack commodities in a covered or closed area.

Shuttle System/Larger Carrier: Haul multiple or larger trailers/bins per trip thereby reducing the number of trips.A. CROP FARMING 3. L AND A PPLICATION OF F ERTILIZERS /P EST C ONTROL

Chemigation/ Fertigation: Application of chemicals th rough the irrigation system reduces the need to travel in the field for application
purposes.

Integrated Pest Management: A decision process that uses a combination of techniques including organic, conventi onal, and biological farming practices to suppress pest problems and thereby reducing the number of passes for spraying.

Non-tillage/Chemical Tillage: Use flail mower, low volume sprayers, or heat delivery systems (as harvest pre-conditioner). Reduces or eliminates number of soil tillage passes.

Organic Practices: Use biological control methods or non-chemical control methods. Reduces chemical use and number of application
passes.

Soil Amendments: Apply organic or chemical materials to soil (e.g., gypsum, lime, polyacrylamide) to improve soil, increase moisture retention.B. CONFINED ANIMAL FACILITIES 1. F EED P REPARATION , S TORAGE AND H ANDLING

Boot or Sock: Load feed into storage bins using a sock or boot in the feed delivery truck auger.

Feeding Near Dusk: Reduces dust generating behaviors of animals.

Restrict Hay Grinding Activities: Avoid hay grinding activities dur ing the windiest times of the day, which are typically in the afternoons.

Wet Feed During Mixing: Increase moisture feed leve ls to reduce excessive dust.

Wet Material in Feedwagon: Avoid placing only dry material in feedwagons; rather mix wet feed with dry feed material.

2. M ANURE S TORAGE AND H ANDLING

Fibrous Layer in Dusty Areas: Add fibrous material to working areas.

Freestall Housing: Use freestall housing with cement floor to allow for manure cleaning with a flushing system.

Frequent Scraping and Manure Removal: Remove manure from open corrals. Conditions of removal, and frequency of removal may be specified.

Pull-Type Manure Harvesting Equipment: Use a pull-type piece of equipment to leave an even corral surface.

Removing Excess Water: Eliminate water leaks from troughs and trough piping, and comply with corral drainage standards.

Shaded Areas in Open Corrals: Make available shaded areas in open corrals, which increases animal density and reduces animal movement.

Sprinkling of Open Corrals: Ensure adequate corral surface moisture levels to prevent visible dust emissions or meet specified moisture conditions.

Time-of-Day Scraping/Harrowing: Scrape/harrow in morning hours when moisture is typically higher.B. CONFINED ANIMAL FACILITIES 3. W ASTE M ANAGEMENT P RACTICES

Frequent Scraping and/or Manure Removal: Remove manure from open corrals. Conditions of removal and frequency of removal may be specified.

Manure Disposal: Dispose of manure in accordance with prescribed procedures. This could include approved manure processing operations or other lands a pproved for the spreading of

manure.C. OTHER AGRICULTURAL ACTIVITIES 1. S TORAGE P ILES ( PILES OF BULK MATERIALS SUCH AS DIRT , AGGREGATE , ETC , EXCLUDING MANURE )

Chemical Stabilization: Apply an approved dust suppressant at a sufficient quantity and frequency to prevent windblown dust.

Covering: Install tarps, plastic or other material as a temporary covering. (Coverings should be anchored to prevent wind from removing the cover).

Watering: Apply water at a sufficient quantity and frequency to maintain moist surface under windy conditions.

Wind Sheltering: Enclose material in a three-sided barr ier equal to or greater in height than the height of the material.

2. U NPAVED R OADS

Access Restriction: Restrict public access to unpaved roads using signage or physical access restrictions (e.g., access barrier) an d/or limit total trips to less than 10 per day.

Paving: Pave unpaved roads. (Gives maximum PM-10 emissions reductions as long as paved surface is kept clean.)

Road Treatments: Apply water, washed gravel, mulc h, organic materials, polymers, dust suppressants, road oil or wood chips to the unpaved road surface area.

Speed Limits: Control speed limits to 15 mph on unpaved roads through worker behavior modification, signage, or any other necessary means.

Surface Modification: Cover unpaved road surfaces with a low silt-content material, such as gravel or recycled road base.

Track-Out Area Improvements: Minimize dirt material tracked out onto public roadways by paving or chemically stabilizing, or a pplying gravel to the unpaved road surface for a distance of at least 100 feet from the public roadway.

Track-Out Prevention: Check or clean the underside of all haul trucks before leaving the parking or staging area.

Vegetation: Establish natural vegetation on unpaved surfaces no longer being used.C. OTHER AGRICULTURAL ACTIVITIES (continued) 3. U NPAVED T RAFFIC A REAS (P ARKING L OTS , S TAGING A REAS , ETC .)

Access Restriction: Restrict public access to unpave d traffic areas using signage or physical access restric tions (e.g., access barrier).

Paving: Pave unpaved traffic areas. (Gives maximum PM-10 emissions reductions as long as paved surface is kept clean.)

Road Treatments: Apply water, mulch, organic materials, polymers, dust suppressants, or wood chips to the unpaved traffic surface

area.

Speed Limits: Control speed limits to 15 mph on unpaved areas through worker behavior modifica tion, signage, or any other
necessary means.

Surface Modification: Cover unpaved surfaces with a low silt-content material, such as gravel or recycled road base.

Track-Out Prevention: Check or clean the underside of all haul trucks before leaving the parking or staging area.

Vegetation: Establish natural vegetati on on unpaved surfaces no longer being used.

Wind Barrier: Plant trees or establish othe r barriers on the typically upwind side of the traffic area to minimize windblown dust from the unpaved surface.

4. O PEN B URNING

Eliminate Burning: Switch to a crop/system that would not require waste burning. Also, use practices su ch as shredding and chipping instead of burning.

5. I NTERNAL C OMBUSTION E NGINES

Note: CAPCOA is still in the process of developing appropriate BARCT/RACM for Internal Combustion Engines (ICE). Information will be provided when it becomes available.