CALIFORNIA AIR RESOURCES BOARD

SIP COMPLETENESS CHECKLIST

(Electronic Format)

*** TO BE COMPLETED BY DISTRICT AND RETURNED TO ARB ***

All rules submitted to the EPA as State Implementation Plan (SIP) revisions must be supported by certain information and 

documentation for the rule packages to be deemed complete for review by the EPA. Rules will not be evaluated for 

approvability by the EPA unless the submittal packages are complete. To assist you in determining that all necessary 

materials are included in rules packages sent to the ARB for submittal to the EPA, please fill out the following form and 

include it with the rule package you send ARB. See the ARB's Guidelines on the Implementation of the 40 CFR 51, 

Appendix V, for a more detailed explanation than is provided here. Adopted rules and rule amendments should be checked 

against U.S. EPA's Guidance Document for Correcting Common VOC & Other Rule Deficiencies (Little Blue Book, August 

21, 2001) to ensure that they contain no elements which will result in disapproval by EPA.

District: Imperial County APCD

Rule No: 806

Rule Title: Conservation Management Practices

Date Adopted or Amended: November 8, 2005

ADMINISTRATIVE MATERIALS

Note: All documents should be in electronic format. Items that have signatures, initials, or stamps may be scanned.

Not

Attached Attached N/A

COMPLETE COPY OF THE RULE: Provide an unmarked copy of the entire rule 

as adopted or amended by your District Board.

UNDERLINE AND STRIKEOUT COPY OF THE RULE: If an amended rule, 

provide a complete copy of the rule indicating in underline and strikeout format 

all language which has been added, deleted, or changed since the rule was last 

adopted or amended.

COMPLETE COPY OF THE REFERENCED RULE(S): For any rule which

includes language specifically referencing another rule, a copy of that other rule 

must also be submitted, unless it has already been submitted to EPA as part 

of a previous SIP submittal.

PUBLIC NOTICE EVIDENCE: Include a copy of the local newspaper clipping 

certification(s), stating the date of publication, which must be at least 30 days 

before the hearing. As an alternative, include a copy of the actual published 

notice of the public hearing as it appeared in the local newspaper(s). In this 

case, however, enough of the newspaper page must be included to show the 

date of publication. The notice must specifically identify by title and number 

each rule adopted or amended.

RESOLUTION/MINUTE ORDER: Provide the Board Clerk certified resolution or 

minute order. This document must include certification that the hearing was 

held in accordance with the information in the public notice. It must also list 

the rules that were adopted or amended, the date of the public hearing, and a 

statement of compliance with California Health and Safety Code Sections

40725-40728 (Administrative Procedures Act).

PUBLIC COMMENTS AND RESPONSES: Submit copies of written public 

comments made during the notice period and at the public hearing. Also

submit any written responses prepared by the District staff or presented to the 

District Board at the public hearing. A summary of the public comments and 

responses is adequate. If there were no comments made during the notice 

period or at the hearing, please indicate N/A to the left.
5/1/2002

CALIFORNIA AIR RESOURCES BOARD

SIP COMPLETENESS CHECKLIST

(Electronic Format)

TECHNICAL MATERIALS

Note: All documents and forms should be in electronic format.

Not

Attached Attached N/A

RULE EVALUATION FORM: See instructions for completing the Rule Evaluation 

Form and the accompanying sample form.

NON-EPA TEST METHODS: Attach all test methods that are referenced in your 

rule that do not appear in 40 CFR 51, 60, 61, 63, or have not been previously 

submitted to EPA. EPA methods used in other media such as SW846 for solid 

waste are not automatically approved for air pollution applications. Submittal of 

test methods that are not EPA-approved should include the information and 

follow the procedure described in Region 9’s “Test Method Review & Evaluation 

Process.”

MODELING SUPPORT: Provide if appropriate. In general, modeling support is 

not required for VOC and NOx rules to determine their impacts on ozone levels. 

Modeling is required where a rule is a relaxation that affects large sources (>

100 TPY) in an attainment area for SO2, directly emitted PM10, CO, or NOx 

(for NO2 purposes). In cases where EPA is concerned with the impact on air 

quality of rule revisions which relax limits or cause a shift in emission patterns 

in a nonattainment area, a reference back to the approved SIP will be sufficient 

provided the approved SIP accounts for the relaxation and provided the approved 

SIP used the current EPA modeling guidelines. If current EPA modeling

guidelines were not used, then new modeling may be required.

ECONOMIC AND TECHNICAL JUSTIFICATION FOR DEVIATIONS FROM EPA 

POLICIES: The District staff report or other information included with the

submittal should discuss all potential relaxations or deviations from RACT, 

RACM, BACT, BACM, enforceability, attainment, RFP, or other relevant EPA 

requirements. This includes, for example, demonstrating that exemptions or 

emission limits less stringent than the presumptive RACT (e.g., a CTG) meet 

EPA’s 5 percent policy, and demonstrating that all source categories exempted 

from a RACM/BACM rule are de minimus according to EPA’s RACM/BACM 

policy.

ADDITIONAL MATERIALS: Provide District staff reports and any other

supporting information concerning development of the rule or rule changes. This 

information should explain the basis for all limits and thresholds contained in 

the rule.
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM – Page 1

(Electronic Format)

I. GENERAL INFORMATION

District: Imperial County Air Pollution Control District

Rule No(s): Rule 806 Date adopted/Amended/Rescinded: Adopted November 8, 2005

Rule Title(s): Conservation Management Practices

Date Submitted to ARB: March 30, 2006

If an Amended Rule, Date Last Amended (or Adopted): N/A

Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? Yes No (If No, do not complete remainder of form)

District Contact: Reyes Romero Phone Number: (760) 482-4606 E-mail Address: reyesromero@imperialcounty.net

Narrative Summary of New Rule or Rule Changes: New Rule Amended Rule

Rule 806 is one of a series of seven rules which together form Regulation VIII, Fugitive Dust Control. On August 11, 

2004 the Imperial County was redesignated as a "serious"non attainment area for PM10. This rule, as an integral 

part of regulation VIII, was adopted to help fullfill the requirement of Best Available Control Measures (BACM.) Rule 

806 applies to agricultural operation sites. 

Pollutant(s) Regulated by the Rule (Check): ROG (NOx) SO2

 (CO) PM TAC (name):

II. EFFECT ON EMISSIONS

Complete this section ONLY for rules that, when implemented, will result in quantifiable changes in emissions. Attach reference(s) for emission 

factor(s) and other information. Attach calculation sheet showing how the emission information provided below was determined.

Net Effect on Emissions: Increase Decrease N/A

Emission Reduction Commitment in SIP for this Source Category: 4.16 tons/day

Inventory Year Used to Calculate Changes in Emissions: 2004 Area Affected: ICAPCD

Future Year Control Profile Estimate (Provide information on as many years as possible):

Rule 806 requires Conservation Management Practices (CMPs) at all farms over 40 acres, which includes over 90 percent of 

farm acreage in Imperial County. Thus, the applicablity is 90 percent. It is assumed an 80 percent rule compliance factor. 

Information used to calculate the emission reductions included an estimate of which CMP options would be used for each 

crop type and CMP category. 
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM - Page 2

(Electronic Format)

Baseline Inventory in the SIP for the Control Measure: 25.35 tons/day

Emissions Reduction Commitment in the SIP for the Control Measure: 4.16 tons/day

Revised Baseline Inventory (if any): N/A

Revised Emission Reduction Estimate (if developed): N/A

Note that the district’s input to the Rule Evaluation Form will not be used as input to the ARB’s emission forecasting and 

planning.

III. SOURCES/ATTAINMENT STATUS

District is: Attainment Nonattainment Split

Approximate Total Number of Small (<100 TPY) Sources Affected by this Amendment: Area Sources

Percent in Nonattainment Area: 100%

Number of Large (> 100 TPY) Sources Controlled: None Percent in Nonattainment Area: N/A%

Name(s) and Location(s) (city and county) of Large (> 100 TPY) Sources Controlled by Rule (Attach additional sheets as 

necessary): N/A

IV. EMISSION REDUCTION TECHNOLOGY

Does the Rule Include Emission Limits that are Continuous? Yes No

If Yes, Those Limits are in Section(s) N/A . of the Rule.

Other Methods in the Rule for Achieving Emission Reductions are: Development of a Dust Control Plan

V. OTHER REQUIREMENTS

The Rule Contains:

Emission Limits in Section(s): D Work Practice Standards in Section(s): E

Recordkeeping Requirements in Section(s): H Reporting Requirements in Section(s): H
5/1/2002

CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM - Page 3

(Electronic Format)

VI. IMPACT ON AIR QUALITY PLAN

 No Impact Impacts RFP Impacts attainment

Discussion: Rule 806 is expected to resut in emissions reduction of 4.16 tons/day of PM10. This reduction will help 

Imperial County to achieve attainment of PM10 standard.
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

1

RULE 806. CONSERVATION MANAGEMENT PRACTICES

(Adopted -------------)

A. Purpose

The purpose of this regulation is to reduce the amount of fine Particulate Matter (PM-10) 

entrained in the ambient air as a result of emissions generated from Agricultural

Operation Sites by requiring Conservation Management Practices to prevent, reduce, or 

mitigate PM-10 emissions.

B. Applicability

This rule applies to Agricultural Operation Sites located within the Imperial County. 

Effective on and after January 1, 2006, an owner/operator shall implement the applicable 

CMPs selected for each Agricultural Operation Site.

C. Definitions

In addition to the definitions of terms in Rule 800 (General Requirements for Control of 

Fine Particulate Matter (PM-10), the following definitions shall govern the

implementation of this rule: 

C.1 AGRICULTURAL OPERATIONS: The growing and harvesting of crops for the 

primary purpose of earning a living.

C.2 AGRICULTURAL OPERATION SITE: One or more agricultural parcels that 

meet the following:

C.2.a. Are under the same or common ownership or operation, or which are 

owned or operated by entities which are under common control; and

C.2.b. Are located on one or more contiguous or adjacent properties wholly 

within Imperial County.

C.3 AGRICULTURAL PARCEL: A portion of real property used by an owner or 

operator for carrying out a specific agricultural operation. Roads,

vehicle/equipment traffic areas, and facilities, on or adjacent to the cropland are 

part of the agricultural parcel.

C.4 ALTERNATIVE TILLING: Rotate tillage leaving residue on soil. Tilling

alternative rows for weed management and wind blown dust allows for

approximately 50% reduction in field activity in addition to stabilizing soil

surface and reducing soil compaction.
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

2

C.5 BALING/LARGE BALES: Using balers to harvest crop. It reduces PM

emissions from crops traditionally harvested by chopping, truck, passes and

residue burning.

C.6 BED/ROW SIZE OR SPACING: Increase or decrease the size of the planting bed 

area (can be done for field and permanent crops). Spacing adjustments reduce the 

number of passes and soil disturbance by increasing plant density/canopy through 

reduction of row width to contain PM within the canopy.

C.7 CHEMIGATION/FERTIGATION: Application of chemicals through an

irrigation system. Each application reduces the need to travel in the field for 

application purposes, thus reducing the number of passes and soil disturbance 

while increasing the efficiency of the application.

C.8 CHIPS/MULCHES, ORGANIC MATERIALS, POLYMERS, ROAD OIL &

SAND: Application of any nontoxic chemical or organic dust suppressant that 

meets all specification required by any federal, state, or local water agency and is 

not prohibited for use by any applicable regulations.

C.9 COMBINED OPERATION: To combine equipment, to perform several

operations during one pass. The reduction in the number of passes necessary to 

cultivate the land will result in fewer disturbances to the soil. Other benefits are 

reduction of soil compaction and time to prepare fields, both of which can be 

precursors to additional tillage requirements.

C.10 CONSERVATION IRRIGATION: To conserve the quantity of water use, e.g.: 

drip, sprinkler, buried/underground line. Conserving water reduces weed

population, which in turn reduces the need for tillage as well as reduces soil 

compaction.

C.11 CONSERVATION MANAGEMENT PRACTICE (CMP): An activity or

procedure that prevents, reduces, or mitigates PM-10 normally emitted by, or 

associated with, an agricultural activity.

C.12 CONSERVATION MANAGEMENT PRACTICES PLAN (CMP PLAN): A

document prepared by the owner or operator of an Agricultural Operation site that 

lists the selected CMPs for implementation. The CMP Plan also contains, but is 

not limited to, contact information for the owner or operator, a description of the 

Agricultural Operation Site and locations of Agricultural Parcels, and other 

information describing the extent and duration of CMP implementation.

C.13 CONSERVATION TILLAGE (e.g.: no tillage, minimum tillage): Types of tillage 

that reduce loss of soil and water in comparison to Conventional Tillage. It 

reduces the number of passes and amount of soil disturbance. It improves soil 

because it retains plant residue and increases organic matter.

C.14 COVER CROPS: Use seeding or natural vegetation/regrowth of plants to cover 
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

3

soil surface. It reduces soil disturbance due to wind erosion and entrainment.

C.15 EQUIPMENT CHANGES/TECHNOLOGICAL IMPROVEMENTS: To modify 

the equipment such as tilling; increase equipment size; modify land planing and 

land leveling; matching the equipment to row spacing; granting to new varieties 

or other technological improvements. It reduces the number of passes during an 

operation, thereby reducing soil disturbance.

C.16 FALLOWING LAND: Temporary or permanent removal from production. 

Eliminates entire operation/passes or reduces activities.

C.17 GRAVEL: Placing a layer of Gravel with enough depth to minimize dust

generated from vehicle movement and to dislodge any excess debris which can 

become entrained.

C.18 GREEN CHOP: The harvesting of a forage crop without allowing it to dry in the 

field. It reduces multiple equipment passes in-field as well as reduces soil 

disturbance and soil compaction.

C.19 HAND HARVESTING: Harvesting crop by hand. It reduces soil disturbance due 

to machinery passes.

C.20 INTEGRATED PEST MANAGEMENT: A decision process that uses a

combination of techniques including organic, conventional and biological farming 

concepts to suppress pest problems. It creates beneficial insect habitat that 

reduces the use of herbicides/pesticides thereby reducing number of passes for 

spraying. It also reduces soil compaction and the need for additional tillage.

C.21 MECHANICAL PRUNING: Using a machine instead of hand labor to prune 

(Applies as an Unpaved Road CMP only). It reduces vehicle trips, thereby

reducing PM emissions.

C.22 MULCHING: Applying or leaving plant residue or other material to soil surface. 

It reduces entrainment of PM due to winds as well as reduces weed competition 

thereby reducing tillage passes and compaction.

C.23 NIGHT FARMING: Operate at night, if practical, when moisture levels are 

higher and winds are lighter. It decreases the concentration of PM emissions 

during daytime and the increased ambient humidity reduces PM emissions during 

the night.

C.24 NIGHT HARVESTING: Implementing cultural practices at night, or at times or 

high humidity. It reduces PM by operating when ambient air is moist, thereby 

reducing PM emissions.

C.25 NO BURNING. Switching to a crop/system that would not require waste burning. 

It reduces emissions associated with burning.
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

4

C.26 NON TILLAGE/CHEMICAL TILLAGE: Use flail mower, low volume sprayers 

or heat delivery systems (as harvest pre-conditioner). It reduces soil compaction 

and stabilizes soil through elimination or reduction of soil tillage passes.

C.27 ORGANIC PESTICIDES: Use biological control methods or non-chemical 

control methods. It reduces chemical use, thereby reducing passes.

C.28 PAVING: To pave currently Unpaved Roads.

C.29 PRECISION FARMING (GPS): Using satellite navigation to calculate position in 

the field, therefore manage/treat selective area. It reduces overlap and allows 

operations to occur during inclement weather conditions and at night thereby 

generating less PM.

C.30 PRE-HARVEST SOIL PREPARATION: Applying a light amount of water or 

stabilizing material to soil prior to harvest (when possible). It reduces PM 

emissions at harvest.

C.31 RESTRICTED ACCESS: To restrict public access to private roads. It reduces 

vehicle traffic and thus reduces associated fugitive dust.

C.32 SHED PACKING: Packing commodities in a covered or closed area. It reduces 

field traffic, thereby reducing PM emissions.

C.33 SHUTTLE SYSTEM/LARGE CARRIER: Multiple bin/trailer. Haul multiple or 

larger trailers/bins per trip thereby reducing emissions through reduced passes.

C.34 SPEED LIMITS: Enforcement of speeds that reduce visible dust emissions. The 

dust emissions from unpaved roads are a function of speed meaning reducing 

speed reduces dust.

C.35 TRACK-OUT CONTROL: Minimize any and all material that adheres to and 

agglomerates on all vehicle and equipment from unpaved roads and falls onto a 

paved public road or the paved shoulder of a paved public road.

C.36. TRANSGENIC CROPS: Use of GMO or Transgenic crops such as “herbicideready.” It reduces need for tillage or cultivation operations, as well as reduces 

soil disturbance. It can also reduce the number of chemical applications.

C.37 WATER APPLICATION: Application of water to unpaved roads and traffic 

areas.

C.38 WIND BARRIER: Artificial or vegetative wall/fence that disrupts the erosive 

flow of wind over unprotected land.
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

5

D. Requirements for Agricultural Operation Sites:

D.1 All Persons who own or operate an Agricultural Operation Site of forty (40) acres

or more in size shall implement in each Agricultural Parcel at least one of the 

Conservation Management Practices listed in Section E.1 for each of the

following categories:

D.1a Land preparation and cultivation;

D.1.b Harvest activities;

D.1.c Unpaved Roads;

D.1.d Unpaved Traffic Areas

D.2 The owner or operator of an Agricultural Operation Site may implement more 

than one Conservation Management Practices for one or more of the categories.

D.3 The owner or operator of an Agricultural Operation Site shall ensure that the 

implementation of each selected Conservation Management Practices does not 

violate any other local, state, or federal law.

D.4 The owner or operator of an Agricultural Operation Site may develop alternative 

CMPs. The owner or operator shall submit to the APCD a technical evaluation of 

the alternative CMPs, demonstrating that the alternative CMP achieves PM-10 

emission reductions that are at least equivalent to other CMPs available for the 

applicable operation. The APCD will review the technical evaluation, and the 

alternative CMP must receive approval by the APCD before being included in the 

CMP Plan.

D.5 The owner or operator shall prepare a CMP Plan for each Agricultural Operation 

Site. The CMP Plan shall be made available to the APCD upon request. The 

CMP Plan shall be provided to the APCD within 72 hours of notice to the owner 

or operator.

E. Conservation Management Practices for Fugitive Dust (PM-10)

E.1 The owner or operator of an Agricultural Operation Site shall implement at least

one of the following CMPs in each Agricultural Parcel to reduce PM10 emissions 

from land preparation and cultivation:

E.1.a Alternate Till,

E.1.b Bed/Row Size Spacing,

E.1.c Chemical/Fertigation,

E.1.d Combined Operations,

E.1.e Conservation Irrigation,

E.1.f Conservation Tillage,
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

6

E.1g Cover Crops,

E.1.h Equipment Changes/Technological Improvements,

E.1.i Fallowing Land,

E.1.j Integrated Pest Control,

E.1.k Mulching,

E.1.l Night Farming,

E.1.m Non Tillage /Chemical Tillage,

E.1.n Organic Pesticides,

E.1.o Precision Farming (GPS), or

E.1.p Transgenic Crops.

E.2 The owner or operator of an Agricultural Operation Site shall implement at least

one of the following CMPs in each Agricultural Parcel to reduce PM10 emissions 

from harvesting:

E.2.a Baling /Large Bales

E.2.b Combined Operations

E.2.c Equipment Changes/Technological Improvements

E.2.d Green Chop

E.2.e Hand Harvesting

E.2.f Fallowing Land

E.2.g Night Harvesting

E.2.h No Burning

E.2.i Pre-Harvesting Soil Preparation

E.2.j Shed Packing

E.2.k Shuttle System/Large Carrier

E.3 The owner or operator of an Agricultural Operation Site shall implement at least

one of the following CMPs for each Unpaved Road to reduce PM10 emissions:

E.3.a Chips/Mulches, Organic Materials, polymers, road oil and sand,

E.3.b Gravel

E.3.c Paving,

E.3.d Restricted access

E.3.e Speed limit

E.3.f Track-out control

E.3.g Water

E.3.h Wind barrier

E.4 The owner or operator of an agricultural operation site shall implement at least

one of the following CMPs for each unpaved traffic area to reduce PM10 

emissions:

E.4.a Chips/Mulches, Organic Materials, Polymers, Road Oil and Sand,

E.4.b Gravel

E.4.c Paving,

E.4.d Restricted Access
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

7

E.4.e Speed Limit

E.4.f Track-Out Control

E.4.g Water

E.4.h Wind Barrier

F. CMP Plan Preparation

An owner or operator shall prepare a CMP Plan for each Agricultural Operation Site. 

Each CMP Plan shall include, but is not limited to, the following information:

F.1 The name, business address, and telephone number of the owner or operator 

responsible for the preparation and implementation of the CMP Plan.

F.2 The signature of the owner or operator and the date that the CPM Plan was 

signed.

F.3 The location of the Agricultural Operation Site: cross roads; canal and gate 

number.

F.4 The crop grown at each location covered by the CMP Plan, total acreage for each 

crop, the length (miles) of unpaved roads, and the total area (acres or square feet) 

of the unpaved equipment and traffic areas to be covered by the CMP Plan, and.

F.5 The CMPs implemented or planned for implementation.

F.6 Other relevant information as determined by the APCD.

G. Violations

Failure to comply with any provisions of this rule shall constitute a violation of

Regulation VIII. Failure to comply with the provisions of a CMP Plan shall also 

constitute a violation of Regulation VIII. 

H. Record of Control Implementation

Any Person subject to the requirements of this rule shall maintain a copy of the CMP 

Plan and any supporting documentation necessary to confirm implementation of the 

CMPs. An owner or operator implementing alterative CMPs shall maintain a copy of 

technical eva luation for alternative CMPs and documentation of APCD approval of 

alternative CMPs, Records shall be maintained for two years after the date of each entry 

and shall be provided to the APCD upon request.
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

CONSERVATION MANAGEMENT PRACTICES PLAN

Farm Name :____________________________________ Owner/Operator: ______________________Telephone:______________

Total Farm Acreage:___________________ Address:________________________________________________________________

Canal & Gate*:___________________________________Crossroads*:__________________________________________________

*List all canals & gates, as well as crossroads, associated to this agricultural operation site at the reverse of this page. In addition, the crop grown at each 

location covered by the CMP plan, total acreage for each crop, the length (miles) of unpaved roads, and the total area (acres or square feet) of the unpaved 

equipment and traffic areas to be covered by the CMP Plan.

Select one or more CMPs from each category:

Land Preparation and Harvesting Unpaved Roads Unpaved Traffic

Cultivation Areas

? Alternative Till ? Bailing/Large Bales ? Dust Suppressants ? Dust Suppressants

? Bed/Row Size Spacing ? Combined Operations ? Gravel ? Gravel

? Chemical Fertigation ? Equipment Changes ? Paving ? Paving

? Combined Operations ? Green Chop ? Restricted Access ? Restricted Access

? Conservation Irrigation ? Hand Harvesting ? Speed Limit ? Speed Limit

? Cover Crops ? Fallowing Land ? Track-out Control ? Track-out Control

? Equipment Changes ? Night Harvesting ? Water ? Water

? Fallowing Land ? Pre-Harvesting Land Prep ? Wind Barriers ? Wind Barriers

? Integrated Pest Control ? Shuttle System/Large Carrier ? Other ? Other

? Mulching ? Shed Packing

? Night Farming ? Other

? Non-Tillage/Chemical Tillage

? Organic Pesticides

? Precision Farming (GPS)

? Transgenic Crops

? Other

I hereby certify that: I am the owner or operator of the agricultural operation site on which this CMP Plan will be implemented; I have a copy of Rule 806 and I will comply 

with it.

Signature:____________________________________Date:____________________________
Imperial County Air Pollution Control District DRAFT Rule 806 

October 7, 2005

9

CONSERVATION MANAGEMENT PRACTICES PLAN

Agricultural ParcelID ____________________

Canal & Gate: _______________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________

Agricultural Parcel ID ____________________

Canal & Gate: ________________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________

Agricultural Parcel ID ____________________

Canal & Gate: _______________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________

Agricultural Parcel ID ____________________

Canal & Gate: ________________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________
Imperial County Air Pollution Control District Rule 806 

806-1

RULE 806 CONSERVATION MANAGEMENT PRACTICES

(Adopted 11/08/2005)

A. Purpose

The purpose of this regulation is to reduce the amount of fine Particulate Matter (PM-10) 

entrained in the ambient air as a result of emissions generated from Agricultural

Operation Sites by requiring Conservation Management Practices to prevent, reduce, or 

mitigate PM-10 emissions.

B. Applicability

This rule applies to Agricultural Operation Sites located within the Imperial County. 

Effective on and after January 1, 2006, an owner/operator shall implement the applicable 

CMPs selected for each Agricultural Operation Site.

C. Definitions

In addition to the definitions of terms in Rule 800 (General Requirements for Control of 

Fine Particulate Matter (PM-10), the following definitions shall govern the

implementation of this rule: 

C.1 AGRICULTURAL OPERATIONS: The growing and harvesting of crops for the 

primary purpose of earning a living.

C.2 AGRICULTURAL OPERATION SITE: One or more agricultural parcels that 

meet the following:

C.2.a Are under the same or common ownership or operation, or which are 

owned or operated by entities which are under common control; and

C.2.b Are located on one or more contiguous or adjacent properties wholly 

within Imperial County.

C.3 AGRICULTURAL PARCEL: A portion of real property used by an owner or 

operator for carrying out a specific agricultural operation. Roads,

vehicle/equipment traffic areas, and facilities, on or adjacent to the cropland are 

part of the agricultural parcel.

C.4 ALTERNATIVE TILLING: Rotate tillage leaving residue on soil. Tilling

alternative rows for weed management and wind blown dust allows for

approximately 50% reduction in field activity in addition to stabilizing soil

surface and reducing soil compaction.

C.5 BALING/LARGE BALES: Using balers to harvest crop. It reduces PM

emissions from crops traditionally harvested by chopping, truck, passes and
Imperial County Air Pollution Control District Rule 806 

806-2

residue burning. 

C.6 BED/ROW SIZE OR SPACING: Increase or decrease the size of the planting bed 

area (can be done for field and permanent crops). Spacing adjustments reduce the 

number of passes and soil disturbance by increasing plant density/canopy through 

reduction of row width to contain PM within the canopy.

C.7 CHEMIGATION/FERTIGATION: Application of chemicals through an

irrigation system. Each application reduces the need to travel in the field for 

application purposes, thus reducing the number of passes and soil disturbance 

while increasing the efficiency of the application.

C.8 CHIPS/MULCHES, ORGANIC MATERIALS, POLYMERS, ROAD OIL &

SAND: Application of any nontoxic chemical or organic dust suppressant that 

meets all specification required by any federal, state, or local water agency and is 

not prohibited for use by any applicable regulations.

C.9 COMBINED OPERATION: To combine equipment, to perform several

operations during one pass. The reduction in the number of passes necessary to 

cultivate the land will result in fewer disturbances to the soil. Other benefits are 

reduction of soil compaction and time to prepare fields, both of which can be 

precursors to additional tillage requirements.

C.10 CONSERVATION IRRIGATION: To conserve the quantity of water use, e.g.: 

drip, sprinkler, buried/underground line. Conserving water reduces weed

population, which in turn reduces the need for tillage as well as reduces soil 

compaction.

C.11 CONSERVATION MANAGEMENT PRACTICE (CMP): An activity or

procedure that prevents, reduces, or mitigates PM-10 normally emitted by, or 

associated with, an agricultural activity.

C.12 CONSERVATION MANAGEMENT PRACTICES PLAN (CMP PLAN): A

document prepared by the owner or operator of an Agricultural Operation site that 

lists the selected CMPs for implementation. The CMP Plan also contains, but is 

not limited to, contact information for the owner or operator, a description of the 

Agricultural Operation Site and locations of Agricultural Parcels, and other 

information describing the extent and duration of CMP implementation.

C.13 CONSERVATION TILLAGE (e.g.: no tillage, minimum tillage): Types of tillage 

that reduce loss of soil and water in comparison to Conventional Tillage. It 

reduces the number of passes and amount of soil disturbance. It improves soil 

because it retains plant residue and increases organic matter.

C.14 COVER CROPS: Use seeding or natural vegetation/regrowth of plants to cover 

soil surface. It reduces soil disturbance due to wind erosion and entrainment.
Imperial County Air Pollution Control District Rule 806 

806-3

C.15 EQUIPMENT CHANGES/TECHNOLOGICAL IMPROVEMENTS: To modify 

the equipment such as tilling; increase equipment size; modify land planing and 

land leveling; matching the equipment to row spacing; granting to new varieties 

or other technological improvements. It reduces the number of passes during an 

operation, thereby reducing soil disturbance.

C.16 FALLOWING LAND: Temporary or permanent removal from production. 

Eliminates entire operation/passes or reduces activities.

C.17 GRAVEL: Placing a layer of Gravel with enough depth to minimize dust

generated from vehicle movement and to dislodge any excess debris which can 

become entrained.

C.18 GREEN CHOP: The harvesting of a forage crop without allowing it to dry in the 

field. It reduces multiple equipment passes in-field as well as reduces soil 

disturbance and soil compaction.

C.19 HAND HARVESTING: Harvesting crop by hand. It reduces soil disturbance due 

to machinery passes.

C.20 INTEGRATED PEST MANAGEMENT: A decision process that uses a

combination of techniques including organic, conventional and biological farming 

concepts to suppress pest problems. It creates beneficial insect habitat that 

reduces the use of herbicides/pesticides thereby reducing number of passes for 

spraying. It also reduces soil compaction and the need for additional tillage.

C.21 MECHANICAL PRUNING: Using a machine instead of hand labor to prune 

(Applies as an Unpaved Road CMP only). It reduces vehicle trips, thereby

reducing PM emissions. 

C.22 MULCHING: Applying or leaving plant residue or other material to soil surface. 

It reduces entrainment of PM due to winds as well as reduces weed competition 

thereby reducing tillage passes and compaction.

C.23 NIGHT FARMING: Operate at night, if practical, when moisture levels are 

higher and winds are lighter. It decreases the concentration of PM emissions 

during daytime and the increased ambient humidity reduces PM emissions during 

the night.

C.24 NIGHT HARVESTING: Implementing cultural practices at night, or at times or 

high humidity. It reduces PM by operating when ambient air is moist, thereby 

reducing PM emissions.

C.25 NO BURNING: Switching to a crop/system that would not require waste burning. 

It reduces emissions associated with burning.
Imperial County Air Pollution Control District Rule 806 

806-4

C.26 NON TILLAGE/CHEMICAL TILLAGE: Use flail mower, low volume sprayers 

or heat delivery systems (as harvest pre-conditioner). It reduces soil compaction 

and stabilizes soil through elimination or reduction of soil tillage passes. 

C.27 ORGANIC PESTICIDES: Use biological control methods or non-chemical 

control methods. It reduces chemical use, thereby reducing passes.

C.28 PAVING: To pave currently Unpaved Roads.

C.29 PRECISION FARMING (GPS): Using satellite navigation to calculate position in 

the field, therefore manage/treat selective area. It reduces overlap and allows 

operations to occur during inclement weather conditions and at night thereby

generating less PM.

C.30 PRE-HARVEST SOIL PREPARATION: Applying a light amount of water or 

stabilizing material to soil prior to harvest (when possible). It reduces PM 

emissions at harvest.

C.31 RESTRICTED ACCESS: To restrict public access to private roads. It reduces 

vehicle traffic and thus reduces associated fugitive dust.

C.32 SHED PACKING: Packing commodities in a covered or closed area. It reduces 

field traffic, thereby reducing PM emissions.

C.33 SHUTTLE SYSTEM/LARGE CARRIER: Multiple bin/trailer. Haul multiple or 

larger trailers/bins per trip thereby reducing emissions through reduced passes.

C.34 SPEED LIMITS: Enforcement of speeds that reduce visible dust emissions. The 

dust emissions from unpaved roads are a function of speed meaning reducing 

speed reduces dust.

C.35 TRACK-OUT CONTROL: Minimize any and all material that adheres to and 

agglomerates on all vehicle and equipment from unpaved roads and falls onto a 

paved public road or the paved shoulder of a paved public road.

C.36. TRANSGENIC CROPS: Use of GMO or Transgenic crops such as “herbicideready.” It reduces need for tillage or cultivation operations, as well as reduces 

soil disturbance. It can also reduce the number of chemical applications.

C.37 WATER APPLICATION: Application of water to unpaved roads and traffic 

areas.

C.38 WIND BARRIER: Artificial or vegetative wall/fence that disrupts the erosive 

flow of wind over unprotected land.
Imperial County Air Pollution Control District Rule 806 

806-5

D. Requirements for Agricultural Operation Sites:

D.1 All Persons who own or operate an Agricultural Operation Site of forty (40) acres

or more in size shall implement in each Agricultural Parcel at least one of the 

Conservation Management Practices listed in Section E.1 for each of the

following categories:

D.1a Land preparation and cultivation;

D.1.b Harvest activities; 

D.1.c Unpaved Roads;

D.1.d Unpaved Traffic Areas

D.2 The owner or operator of an Agricultural Operation Site may implement more 

than one Conservation Management Practices for one or more of the categories.

D.3 The owner or operator of an Agricultural Operation Site shall ensure that the 

implementation of each selected Conservation Management Practices does not 

violate any other local, state, or federal law.

D.4 The owner or operator of an Agricultural Operation Site may develop alternative 

CMPs. The owner or operator shall submit to the APCD a technical evaluation of 

the alternative CMPs, demonstrating that the alternative CMP achieves PM-10 

emission reductions that are at least equivalent to other CMPs available for the

applicable operation. The APCD will review the technical evaluation, and the 

alternative CMP must receive approval by the APCD before being included in the 

CMP Plan.

D.5 The owner or operator shall prepare a CMP Plan for each Agricultural Operation 

Site. The CMP Plan shall be made available to the APCD upon request. The 

CMP Plan shall be provided to the APCD within 72 hours of notice to the owner 

or operator. 

E. Conservation Management Practices for Fugitive Dust (PM-10)

E.1 The owner or operator of an Agricultural Operation Site shall implement at least

one of the following CMPs in each Agricultural Parcel to reduce PM10 emissions 

from land preparation and cultivation:

E.1.a Alternate Till,

E.1.b Bed/Row Size Spacing,

E.1.c Chemical/Fertigation,

E.1.d Combined Operations,

E.1.e Conservation Irrigation,
Imperial County Air Pollution Control District Rule 806 

806-6

E.1.f Conservation Tillage,

E.1g Cover Crops,

E.1.h Equipment Changes/Technological Improvements,

E.1.i Fallowing Land,

E.1.j Integrated Pest Control,

E.1.k Mulching,

E.1.l Night Farming,

E.1.m Non Tillage /Chemical Tillage,

E.1.n Organic Pesticides,

E.1.o Precision Farming (GPS), or

E.1.p Transgenic Crops

E.2 The owner or operator of an Agricultural Operation Site shall implement at least

one of the following CMPs in each Agricultural Parcel to reduce PM10 emissions 

from harvesting:

E.2.a Baling /Large Bales

E.2.b Combined Operations

E.2.c Equipment Changes/Technological Improvements

E.2.d Green Chop

E.2.e Hand Harvesting

E.2.f Fallowing Land

E.2.g Night Harvesting

E.2.h No Burning

E.2.i Pre-Harvesting Soil Preparation

E.2.j Shed Packing

E.2.k Shuttle System/Large Carrier

E.3 The owner or operator of an Agricultural Operation Site shall implement at least

one of the following CMPs for each Unpaved Road to reduce PM10 emissions:

E.3.a Chips/Mulches, Organic Materials, polymers, road oil and sand,

E.3.b Gravel

E.3.c Paving,

E.3.d Restricted access

E.3.e Speed limit

E.3.f Track-out control

E.3.g Water

E.3.h Wind barrier

E.4 The owner or operator of an agricultural operation site shall implement at least

one of the following CMPs for each unpaved traffic area to reduce PM10 

emissions:

E.4.a Chips/Mulches, Organic Materials, Polymers, Road Oil and Sand,

E.4.b Gravel
Imperial County Air Pollution Control District Rule 806 

806-7

E.4.c Paving,

E.4.d Restricted Access

E.4.e Speed Limit

E.4.f Track-Out Control

E.4.g Water

E.4.h Wind Barrier

F. CMP Plan Preparation

An owner or operator shall prepare a CMP Plan for each Agricultural Operation Site. 

Each CMP Plan shall include, but is not limited to, the following information:

F.1 The name, business address, and telephone number of the owner or operator 

responsible for the preparation and implementation of the CMP Plan.

F.2 The signature of the owner or operator and the date tha t the CPM Plan was 

signed.

F.3 The location of the Agricultural Operation Site: cross roads; canal and gate 

number.

F.4 The crop grown at each location covered by the CMP Plan, total acreage for each 

crop, the length (miles) of unpaved roads, and the total area (acres or square feet) 

of the unpaved equipment and traffic areas to be covered by the CMP Plan, and.

F.5 The CMPs implemented or planned for implementation.

F.6 Other relevant information as determined by the APCD.

G. Violations

Failure to comply with any provisions of this rule shall constitute a violation of

Regulation VIII. Failure to comply with the provisions of a CMP Plan shall also 

constitute a violation of Regulation VIII. 

H. Record of Control Implementation

Any Person subject to the requirements of this rule shall maintain a copy of the CMP 

Plan and any supporting documentation necessary to confirm implementation of the 

CMPs. An owner or operator implementing alterative CMPs shall maintain a copy of 

technical evaluation for alternative CMPs and documentation of APCD approval of 

alternative CMPs. Records shall be maintained for two years after the date of each entry 

and shall be provided to the APCD upon request.
Imperial County Air Pollution Control District Rule 806 

806-8

CONSERVATION MANAGEMENT PRACTICES PLAN

Farm Name:____________________________________ Owner/Operator: ______________________Telephone:_______________

Total Farm Acreage:___________________ Address:________________________________________________________________

Canal & Gate*:___________________________________Crossroads*:__________________________________________________

*List all canals & gates, as well as crossroads, associated to this agricultural operation site at the reverse of this page. In addition, the crop grown at each 

location covered by the CMP plan, total acreage for each crop, the length (miles) of unpaved roads, and the total area (acres or square feet) of the unpaved 

equipment and traffic areas to be covered by the CMP Plan.

Select one or more CMPs from each category:

Land Preparation and Harvesting Unpaved Roads Unpaved Traffic

Cultivation Areas

? Alternative Till ? Bailing/Large Bales ? Dust Suppressants ? Dust Suppressants

? Bed/Row Size Spacing ? Combined Operations ? Gravel ? Gravel

? Chemical Fertigation ? Equipment Changes ? Paving ? Paving

? Combined Operations ? Green Chop ? Restricted Access ? Restricted Access

? Conservation Irrigation ? Hand Harvesting ? Speed Limit ? Speed Limit

? Cover Crops ? Fallowing Land ? Track-out Control ? Track-out Control

? Equipment Changes ? Night Harvesting ? Water ? Water

? Fallowing Land ? Pre-Harvesting Land Prep ? Wind Barriers ? Wind Barriers

? Integrated Pest Control ? Shuttle System/Large Carrier ? Other ? Other

? Mulching ? Shed Packing

? Night Farming ? Other

? Non-Tillage/Chemical Tillage

? Organic Pesticides

? Precision Farming (GPS)

? Transgenic Crops

? Other

I hereby certify that: I am the owner or operator of the agricultural operation site on which this CMP Plan will be implemented; I have a copy of Rule 806 and I will comply with it.

Signature:____________________________________Date:____________________________
Imperial County Air Pollution Control District Rule 806 

806-9

CONSERVATION MANAGEMENT PRACTICES PLAN

Agricultural ParcelID ____________________

Canal & Gate: _______________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________

Agricultural Parcel ID ____________________

Canal & Gate: ________________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________

Agricultural Parcel ID ____________________

Canal & Gate: _______________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________

Agricultural Parcel ID ____________________

Canal & Gate: ________________________________________________________________

Crossroads: __________________________________________________________________

Crop Grown: _________________________________________________________________

Total Acreage: _______________________________________________________________

Approx. Length (miles) of unpaved roads: ________________________________________

Approx. Unpaved Equipment Traffic Areas (acres or square feet): ___________________

CMPs Selected:_______________________________________________________________
rule in 7.txt

Subject: Reg VIII Rule 806

Date: Thu, 30 Mar 2006 17:18:55 -0800

From: Monica Soucier <monicasoucier@imperialcounty.net>

To: David Brown <dabrown@arb.ca.gov>

Rule 806

Monica N. Soucier

APCD Specialist

150 S 9th Street

El Centro, CA 92243

(760) 482-2074 or (760) 482-4606

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