Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 1

**Draft** RULE 217 LARGE CONFINED ANIMAL FACILITIES (LCAF) PERMITS REQUIRED

(Adopted 10/10/2006 ; Revised __/__/____ )

A. Applicability General

A.1 Purpose

The purpose of this rule is to limit emissions of Volatile Organic

C ompounds (VOC) and Ammonia from Large Confined Animal Facilities

( L CAF).

A. 2 1 Applicability

This rule sets forth the permitting requirements for agricultural sources

subject to permit as a result of amendments to California Health and
Safety Code Section 40724.6 that became effective January 1, 2004. A
written Permit to Operate shall be required for all Large Confined Animal

Facilities.

B. Definitions

The following definitions apply to all terms applicable to this Rule. If a term is not

defined in this Rule, then the definitions provided in Rule 101 shall apply.

B.1 AERATED STATIC PILE (ASP): a system designed, constructed,

maintained, and operated for decomposing organic material in which

the material is placed on top of perforated plates or pipes that are

connected to blowers that either push or pull air through the piles.

B.2 AEROBIC DIGESTER: a basin or tank designed, constructed,

maintained, and operated for the aerobic treatment of liquid or solid

manure that is approved by the APC D

, ARB, and EPA.

B.3 AEROBIC LAGOON : a lagoon designed, constructed, maintained, and

operated in accordance with the applicable standards for aerobic

lagoons in the Natural Resource Conservation Service (NRCS)

California Field Office Technical Guide Conservation Practice Standard

Code 359 or other applicable standards approved by the APC D

, ARB,

and EPA.

B.4 ALTERNATIVE MITIGATION MEASURES: a mitigation measure that is

determined by the APC D

, ARB, and EPA to achieve reductions that

are equal to or exceed the reductions that would be achieved by

other mitigation measures listed in this rule that owners/operators

could choose to comply with rule requirements.Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 2

**Draft** B.5 ANAEROBIC DIGESTER: a basin or tank designed, constructed,

maintained, and operated for the anaerobic treatment of liquid or

solid manure in accordance with the applicable standards for

anaerobic digesters in the Natural Resource Conservation Service

(NRC S) California Field Office Technical Guide Conservation Practice

Standard Code 365 or 366 or other applicable standards approved by

the APCD

, ARB, and EPA.

B.6 ANAEROBIC TREATMENT: the decomposition of organic matter by

microbes in the absence of oxygen. During this process four main

reactions occur. In the first reaction, complex organic materials (e.g.

carbohydrates, proteins, and fats) are hydrolyzed to form soluble

organic molecules (e.g. sugars, amino acids, and fatty acids). In the

second reaction, soluble organic molecules ferment to form acetic

acid, formic acid, and volatile fatty acids. In the third reaction, volatile
fatty acids undergo acetogenesis to form acetic acid and formic

acid. In the fourth reaction, acetic acid and formic acid undergo

methanogenesis to form methane and carbon dioxide.

B.7 ANAEROBIC TREATMENT LAGOON: a lagoon designed, constructed,

maintained, and operated in accordance with the standards for

anaerobic lagoons in the Natural Resource Conservation Service

(NRCS) California Field Office Technical Guide Conservation Practice

Standard Code 359 or other applicable standards approved by the

APCD

, ARB, and EPA.

B.8 BEEF FEEDLOT: a CAF that is primarily concerned with raising

cattle for the production of meat for commercial purposes.

B.9 CDFA: California Department of Food and Agriculture or any person

designed to act on its behalf.

B.10 CEREAL GRAINS: grasses (members of the monocot families Poaceae

or Gramineae) cultivated for the edible components of their fruit. These

grains include corn, rice, wheat, barley, sorghum, millet, oats, rye,

triticale, and fonio. For the purpose of this rule, buckwheat and quinoa will

also be considered cereal grains.

B.11 CERTIFIED NUTRITIONIST: a nutritionist certified by the American

Registry of Professional Animal Scientists or who is approved by the

APCD

, ARB, and EPA.

B.12 COMPOSTING: the controlled biological decomposition of organic

material, under aerobic (with air) or anaerobic (without air) conditions,

to form a humus

- like material.Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 3

**Draft** B.13 CORRAL: an area where animals are confined without separate stalls

in which the animals may rest. (also referred to as dry lot, pen,

exercise pen, loafing barn, saudi barn or open lot).

B.14 DAY: a twenty

- four hour period beginning at 12:00 a.m. and ending at
midnight.

B.15 DRY MANURE/DRY SEPARATED SOLIDS: manure or separated

solids with less than 50% moisture, by weight, not including any

materials used for on

- site composting operations.

B.16 DRY ROLLED CORN : any corn that is crushed between rollers

without previous treatment with steam or another softening process.

B.17 EMISSION MITIGATION PLAN: a document that lists and describes

all VOC mitigation measures to be implemented at the CAF.

B.18 FACILITY : a source or group of air pollution sources located on one

or more properties that are contiguous, adjacent, or separated only by

a public right

- of

- way and are under common ownership, common control, or operated by entities that are under common ownership or

control. A facility includes, but is not limited to, all barns, buildings,

coops, corrals, feed storage areas, installations, milking parlors,

structures, and systems for the collection, distribution, storage, and

treatment of manure on the properties.

B.19 FEED BUNK: the area where feed is placed for the animals to eat the

feed.

B.20 FEED APRON : the area in which the animal stands while eating feed.

This area may also be referred to as a flush or scrape concrete lane.

B.21 FREESTALL BARN : a structure for housing animals in which the

animals are contained in pens under a roof and have free access to

feed bunks, waterers, and stalls for resting.

B.22 HIGH MOISTURE CORN: corn which, at harvest, has a ke rnel moisture

of greater than 25%.

B.23 IN

- CORRAL MOUNDS: mounds of manure and/or soil which are constructed, designed, maintained, and operated by the
owner/operator to allow animals to have a dry area to lay and rest
during the wet season.

B.24 LAGOON : a basin constructed, maintained, and operated to store and

treat manure. This does not include basins primarily used to collectImperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 4

**Draft** runoff and storm water.

B.25 L ARGE CAF: a CAF that maintains, on any one day, at least the
following number of animals:

B.26 LICENSED VETERI NARIAN: a veterinarian licensed by the State of

California or a veterinarian that is approved by the APCD

, ARB, and

EPA.

B.27 MATURE COW: a cow that has had at least one calf.

B.28 MEDIUM DAIRY CAF: a dairy CAF that maintains, on any one day, at
least 500 milking cows, but is not a large dairy CAF.

B.28 MILK ING COW: a cow that is currently producing milk (lactating).

B.29 MITIGATION MEASURE: an activity, practice, or technology that

reduces VOC air pollutants emitted by or associated with a CAF.

B.30 MAXIMUM ONE

- TIME CAPACITY : the maximum number of animals at
the facility in each production stage (facility capacity).

B.31 MOLT: the periodic replacement of feathers by shedding old feathers

while producing new ones.

B.32 NRC: the National Research Council of the United States of America.

B.33 NRCS: the Natural Resource Conservation Service operated under Table 1

- Large CAF Definition By Livestock Category

Livestock Category Large CAF Definition

Beef Feedlots 3,500 beef cattle

Dairy 500 milking cows

Other Cattle Facility 3 ,500 calves, heifers, or other cattle

Poultry Facility

Chicken 40 0 ,000 head

Duck 40 0 ,000 head

Turkey 100,000 head

Swine Facility 3,000 head

Horses Facility 2,500 head

Sheep and Goat Facilities 15,000 head of sheep, goats, or any combination of the two

Any livestock facility not listed

above 30,000 headImperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 5

**Draft** the United States Department of Agriculture.

B.34 PHOTOTROPIC LAGOON : a lagoon where at least 10% of the

bacteria in the lagoon are photosynthetic bacterium; the

bacteriochlorophyll a concentration is above 1081 g/L; or that is

designed, constructed, maintained, and operated according to other

standards approved by the APCD

, ARB, and EPA.

B.35 POULTRY: any domesticated birds kept or raised for eggs or meat.

B.36 POULTRY LITTER : poultry excretions and bedding, including, but not

limited to, dried solids, manure, urine and bedding from chickens,

turkeys

, geese

, or ducks.

B.37 OVERALL VOC CAPTURE AND CONTROL

B.38 OXYGEN BARRIER FILM: a plastic film with an oxygen tra nsfer rate not

exceeding 200 cm 3 /(m 2

- 24 hrs) as measured by ASTM D3985 or a

plastic film with an equivalent oxygen transfer rate as determined by
methods approved by the APCO and EPA.

B.39 PHASE FEEDING: the feeding of multiple diets during the nursery stage
and during the grower/finisher phase.

B.40 PROCESSED CEREAL GRAIN OR PROCESSED CORN: cereal grains

or corn that have undergone one or more processes to changes the

underlying chemical structure compared to the cereal grain or corn as

harvested.

B.41 RAIN EVENT : precipitation greater than 0.1 inch in 2 4 hours at the
facility.

B.42 SEPARATED SOLIDS: solids removed from manure by a solid

separator system, not including any materials used for onsite

composting operations.

B.43 SHADE STRUCTURE: a structure designed, constructed, installed,

maintained, and operated to provide shade for livestock.

B.44 SOLID SEPARATOR SYSTEM: a system for separating solid manure

from the liquid manure stream that is designed, installed, constructed,

operated, and maintained in accordance with the applicable standards

in California NRCS Field Office Technical Guide Conservation

Practice Standard Code 632 or other applicable standards approved

by the APCD

, ARB, and EPA. Solid separator systems may include,

but are not limited to, flat belt separators, roller press separators,Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 6

**Draft** vibrating screen separators, stationary inclined screen separators,
weeping walls, and settling basins.

B.45 SPLIT

- SEX FEEDING PROGRAM: a feeding program that separates

make and female swine after they are moved from the nursery and feed

different diets to more closely match the nutrient requirements of the

different sexes.

B.46 STEAM

- FLAKED CEREAL GRAINS: cereal grain that is processed by

cooking the grain with steam under pressure and then flaking the

resulting material through heated rollers.

B.47 STEAM

- FLAKED CORN: corn that is processed by cooking the corn

with steam under pressure and then flaking the resulting material

through heated rollers.

B.48 STORAGE POND: a basin constructed, maintained, and operated, to

store manure, after it has been treated or processed in a lagoon.

B.49 SWINE: for the purposes of this rule, and determination of the threshold

in Table 2, any weaned pig of at least forty

- five (45) pounds in weight,

such as finishing pigs and breeding stock.

B.50 VOC CONTROL DEVICE: a device, into which captured air is vented,

that reduces the VOC content in the air prior to the air being released

into the atmosphere.

B.51 WEATHERPROOF COVERING/STORAGE STRUCTURE: A covering,

such as a building or tarp, constructed, installed, maintained, and

operated such that the material inside or underneath the covering is

not moved or moistened by weather conditions outside of the covering

including, but not limited, to wind and rain. The covering shall be

maintained according to manufacturer recommendations and adhere to

the applicable standards in NRCS California Field Office Technical

Guide (FOTG) Conservation Practice Standard Code 313 or other

applicable standards approved by the APCD, ARB, and EPA.

B.52 YEAR: any consecutive 365

- day period.

C. Requirements

C.1 On or before January 1, 2007, a An Owner /operator shall obtain an
Authority to Construct (ATC) or Permit to Operate (PTO) for the facility.

Upon adoption of this rule

, a n owner or operator of a new or modified

LCAF shall submi t , for approval by the Air Pollution Control Officer DistrictImperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 7

**Draft** (APC O D ), an Authority to Construct (ATC)/Permit to Operate (PTO)
application for each LCAF. Additionally, each application shall include:

C.1.a The information that the APC O D , or his designee, determines is
necessary to prepare an emissions inventory of all regulated air
pollutants emitted from the operation, including, but not limited to,
the provisions listed in C.1.b through C.1.e.

C.1.b List of all stationary combustion equipment. The applicant must

inform provide the APCD with the frequency of the equipment

us e age of the equipment

, including year and model of the
equipment, capacity (Btu/hr, horsepower, etc.), hours of usage

each year, and/ or gallon of fuel consumption burned to determine

the baseline emission factors.

C.1.c List of all other significant sources of air pollution, including but not

limited to

, stationary irrigation pumps, gasoline storage tanks, etc.

C.1.d The maximum one

- time capacity of the facility regardless if the
facility is operating at full production at the time the application is

submitted

. Total cap acity of the facility in terms of commercial

production animal and bird population

.

C.1.e An e E missions m M itigation p P lan that demonstrates that the
facility will use RACT to reduce emissions of VOCs and Ammonia

, according to the requirements of S ection C.5

. In addition

, owner/operator of any LCAF shall implement all emission mitigation

measures as con tained in the permit application on the day

operations of a LCAF commence

. pollutants that contribute to the

non

- attainment of any ambient air quality standard, and that are

within the Air District

= s regulatory authority.

C.1.f In addition, the dust control plan for beef feedlots shall adhere to

the requirements within Rule 420.

C.1.g The owner/operator of LCAFs that are not a dairy, beef feedlot,

swine, or poultry operations shall submit an Emissions Mitigation
Plan demonstrating facility

- wide reductions of at least 30% or

submit an Emissions Mitigation Plan that adheres to all the
applicable requirements of sections C.5.

C.2 The APC O D shall determine completeness for each ATC/PTO A

a pplication according to the requirements contained within Rule 206,

Section A.2. The APC O D shall act upon an application pursuant to this

rule within six months of receipt of a complete application. In the interim,

current Livestock Feed Yard certificates an d conditions shall be honored.Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 8

**Draft** C.3 Operators of LCAFs shall implement the control meas ures identified in

their emissi ons mitigation plan which may be selected from the Air

District

= s Policy Number 38, A Recommended Mitigation Measures for

Large Confined Animal Facilities. @

C.3 Temporary Suspension of Mitigation Measures

An owner/operator may temporarily suspend utilization of a mitigation
measure provided all of the following requirements are met:

C.3.a It is determined by a licensed veterinarian or certified nutritionist

that the mitigation measure is detrimental to animal health or that
suspension of the mitigation measure is necessary for the animal to

molt, a signed, written copy of the determination shall be retained

on

- site and made available for inspection upon request, and

C.3.b The owner/operator notifies the APCD, within forty

- eight (48) hours

of the veterinaria n’ s or nutritionis t’ s determination that a measure is
being temporarily suspended, and

C.3.c If such a situation exist, or is expected to exist for longer than thirty
(30) days, the owner/operator shall, within tha t t hirty (30) day

period, submit another mitigation measure from the same section of

the app ropriate table to be implemented in lieu of the mitigation

measure that suspended. Substituted measures shall be requested

by submitting was an application to modify the mitigation plan.

C. 3 .d The APCD, ARB, and EPA approve the temporary suspension of

the mitigation measure for the time period requested by the
owner/operator and a signed written copy of this determination shall

be retained on

- site.

C.4 The owner or operator of an LCAF shall adhere and apply to the selected

control measures outlined in their mitigation plan pursuant to a six month
schedule approved by the APCO

.

C. 4 5 O n or before January 1, 2008

, For each existing LCAF, t hree months after

adoption of this rule and each year thereafter, the owner or operator of a

LCAF shall submit an annual compliance Emissions Mitigation p P lan that
updates the information submitted pursuant to section C.1 and C

. 6

. In
addition, an owner/operator of an existing LCAF shall implement all

emission mitigation measures as contained in the updated Emissions

Mitigation Plan within 18 0 days of approval of this Rule

. All modifications
to LCAF’s shall follow Rule 207 procedures

.Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 9

**Draft** C.5 Facility Emission Mitigation Plan
The owner/operator shall submit a facility emission mitigation plan as part
of the Permit to Operate application or Authority to Construct application.

The mitigation plan shall contain the following :

C.5.a The name, business address, and phone number of the

owner/operator responsible for the preparation and the

implementation of the mitigation measure listed in the mitigation

plan.

C.5.b The signature of t he owner/operator attesting to the accuracy of the
information provided and adherence to implementing the activities

specified in the mitigation plan at all times and the date that the

application was signed.

C.5.c A list of all the mitigation measure s from Section C.6 that the

owner/operator will use to com ply with Rule 217 requirements;
including the number of animals and acreage subject to each

control, as applicable.

C. 6 Owners/o perators of LCAFs shall implement contro l measures identified in

their Emissions Mitigation P lan which shall include those applicable

mitigation m easures from the appropriate t able s as follows :

C.5.a An o wner/operator of a LCAF that is a Beef Feedlot shall comply

with the following applicable requirements:

C. 6 .a Beef Feedlots: Owners/operators of a beef feedlot CAF shall

comply with the mitigation measures in Table 2 .1

Table 2

. 1 Beef Feedlot Mitigation Measures Requirements

A. Feed : An owner/operator of a beef feedlot CAF shall implement at least two (2) of the
following feed mitigation measures:

1. Feed according to National Research Council (NRC) guidelines.

2. Feed steam

- flaked, dry rolled, cracked or ground corn or other steam

- flaked,

dry rolled, cracked or ground cereal grains.

3. Remove uneaten wet feed from feed bunks within twenty

- four (24) hours after

the end of a rain event.

4. Implement an alternative mitigation measure(s), not listed above.

B . Silage : An owner/operator of a beef feedlot CAF that feeds silage shall implement at least

one (1) of the following silage mitigation measures:Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 10

**Draft** 1. Operators selecting this option must choose mitigation measure 1a plus
one (1) from mitigation measures 1b, 1c, 1d plus two (2) from mitigation

measures 1e, 1f, 1g:

a. Cover the surface of silage piles, except for the area where feed is being

removed from the pile, with a plastic tarp that is at least five (5) mils thick

(0.005 inches), multiple plastic tarps with a cumulative thickness of at least 5

mils (0.005 inche s), or an oxygen barrier film covered with a UV resistant

material, within seventy

- two (72) hours of last delivery of material to the pile.

Choose one of the following:

b. Build silage piles such that the average bulk density of silage piles is
at least 44 lb/cu ft for corn silage and 40 lb/cu ft for other silage types, as

measured in accordance with G ; or

c. When creating a silage pile, adjust filling parameters to assure a calculated
average bulk density of at least 44 lb/cu ft for corn sil age and at least 40 lb/cu

ft for other silage types, using a spreadsheet approved by the District; or

d. Incorporate all of the following practices when creating silage piles:

i. Harvest silage crop at ≥65% moisture for corn; and ≥60% moisture

for alfalfa/ grass and other silage crops; and

ii. Incorporate the following parameters for Theoretical Length of Chop
(TLC) and roller opening, as applicable, for the crop being harvested.

Crop Harvested TLC Roller Opening
(mm)

Corn with no Processing ≤ 1⁄2 in N/A

Processed Corn <35% dry matter ≤ 3⁄4 in 1

- 4 mm

Alfalfa/Grass ≤ 1.0 in N/A

Wheat/Cereal/Other ≤ 1⁄2 in N/A

iii. Manage silage material delivery such that no more than six (6)

inches of material are un

- compacted on top of the pile.

Choose two of the following:

e. Manage exposed silage (select one of the following):

i. Manage silage piles such that only one silage pile has an
uncovered face and the uncovered face has a total exposed surface

area of less than 2,150 square feet; or

ii. Manage multiple uncovered silage piles such that the total exposed
surface area of all uncovered silage piles is less than 4,300 square

feet.Imperial County Air Pollution Control District Rule 217
Final Draft February 9, 2016

217

- 11

**Draft** f. Maintain silage working face (select one of the following):

i. Use a shaver/facer to remove silage from the silage pile ; or

ii. Maintain a smooth vertical surface on the working face of the silage

pile.

g. Silage Additives (select one of the following):

i. Inoculate silage with homolactic lactic acid bacteria in accordance

with manufacturer recommendations to achieve a conc entration of at
least 100,000 colony forming units per gram of wet forage; or

ii. Apply propionic acid, benzoic acid, sorbic acid, sodium benzoate,
or potassium sorbate at a rate specified by the manufacturer to reduce
yeast counts when forming silag e pile; or

iii. Apply other additives at specified rates that have been
demonstrated to reduce alcohol concentrations in silage and/or VOC

emissions from silage and have been approved by the District and

EPA.

2. Utilize a sealed feed storage system (e.g., Ag

- Bag) for silage.

3. Implement an alternative mitigation measure(s), not listed above.

C. Housing:
An owner/operator of a beef feedlot CAF shall implement mitigation measures 1, 2, 3,
and 4 and at least one (1) additional mitigation measure in each of the animal housing
structures (e.g. each corral, etc.):

1. a. Scrape corrals twice a year with at least ninety (90) days between

cleanings, excluding the removal of in

- corral mounds; or and

b. Clean and remove manure from corrals every eighteen (18) months,

including the removal on in

- corral mounds.

2. Inspect water pipes and troughs and repair leaks at least once every seven
(7) days.

3. Choose one of the following:

a

. Maintain corrals to ensure proper drainage preventing water from standing

more than forty

- eight (48) hours; unless standing water is the result of a rain

event; or

b

. Harrow, rake, or scrape corrals sufficiently to maintain a dry surface,

unless the corrals have not held anima ls in the last thirty (30) days ; except
moisture may be permitted in areas underneath shade structures or where

animals commonly congregate in large groups.

4. If the CAF has shade structures, they must choose with one of the following:

a. Install shade structures such that they are constructed with a light

permeable ro ofing material; orImperial County Air Pollution Control District Rule 217

217

- 12

**Draft** b. Install all shade structures uphill of any slope in the corral; or

c. Install shade structure so that the structure has a North/South orientation.

5. Manage corrals and concrete lanes such that the dry manure depth in the pen

does not exceed twelve (1 2 ) inches at any time or point, except for in

- corral

mounds. Manure depth may exceed twelve (1 2 ) inches when corrals become

inaccessible due to rain events. The facility must resume management of the

manure depth of twelve (1 2 ) inches or lower immediately upon the corral

becoming accessible.

6. Knockdown fence line manure build

- up prior to it exceeding a height of twelve
(12) inches at any time or point. Manure depth may exceed twelve (12) inches

when corrals become inaccessible due t o rain events. The facility must
resume management of the manure depth of twelve (12) inches or lower

immediately upon the corral becoming accessible.

7. Implement an alternative mitigation measure(s), not listed above.

D. Solid Manure/Separated Solids:

An owner/operator of a beef feedlot CAF that handles or stores solid manure or
separated solids outside the animal housing shall implement at least one (1) of the

following mitigation measures:

1. Choose one of the following:

a. Within 72 hours of removal from animal housing, either remove dry manure
from the facility or, during th ose months where rain occurs , cover dry manure
pile with a weatherproof covering, except for times, not to exceed twenty

- four

(24) hours per event, when wind events rem ove the covering

. ; or

b. Manage moisture con tent of manure to less than 50%; or
c. For solid manure stored on the facility and outside animal housing, utilize a

third

- party composting company that is equally covered under appropriate

permits.

2. Impleme nt an alternative mitigation measure(s), not listed above.

E. Liquid Manure:
An owner/operator of a beef feedlot CAF that handles manure in a liquid form
shall implement at least one (1) of the following mitigation measures:

1. Use a phototropic lagoon.

2. Use an anaerobic treatment lagoon designed in accordance with NRCS

Guideline No. 359

.

3. Remove solids from the waste system with a solid separator system, prior to

the waste entering the lagoon.

4. Maintain lagoon pH between 6.5 and 7.5.Imperial County Air Pollution Control District Rule 217

217

- 13

**Draft** 5. Implement an alternative mitigation measure(s), not listed above.

F. Land Application:

An owner/ operator of a beef feedlot CAF who land applies manure to crop land on the

facility shall implement the following applicable mitigation measures:

1. If the CAF applies solid manure, choose one of the following:

a. Incorporate all solid manure within seventy

- two (72) hours of land

application; or

b. Only apply solid manure that has been treated with an anaerobic treatment

lagoon, aerobi c lagoon, or digester system; or

c. Apply no solid manure with a moisture content of more than 50%; or

d. Implement an alternative mitigation measure(s), not listed above.

2. If the CAF applies liquid manure, choose one of the following:

a. Only apply liquid manure that has been treated with an anaerobic

treatment lagoon, aerobic lagoon, or digester system; or

b. Allow liquid manure to stand in the fields for no more than twenty

- four (24)

hours after irrigation; or

c. Apply liquid/slurry manure via in jection with drag hose or similar apparatus;

or

d. Implement an alternative mitigation measure(s), not listed above.

C. 6 .b Dairy CAF: An owner/operator of a medium or large Dairy CAF

shall comply with the mitigation measures in Table 2 .2

.

Table 2

. 2 Dairy CAF Mitigation Measure Requirements

A. Feed : An owner/operator of a dairy CAF shall implement mitigation measures 1, 2, 3, and 4
and at least one (1) additional mitigation measure:

1. Feed according to National Research Council (NRC) guidelines.

2. Push feed so that it is within three (3) feet of feed apron fence within two hours
of putting out the feed or use a feed trough or other feeding structure
designed to maintain feed within reach of the cows.

3. Begin feeding total mixed rations within two (2) hours of grinding and mixing

rations.

4. Store grain in a weatherproof storage structure or under a weatherproof
covering from October through May.

5

. Feed steam

- flaked, dry rolled, cracked or ground corn or other steam

- flaked,

dry rolled, cracke d or ground cereal grains.

6

. Remove uneaten wet feed from feed bunks within twenty

- four (24) hours after

the end of a rain event.

7

. For total mixed rations that contain at least 30% by weight of silage, feed

animals total mixed rations that contain at least 45% moisture.

8

. Implement an alternative mitigation measure(s), not listed above.Imperial County Air Pollution Control District Rule 217

217

- 14

**Draft**

B. Silage:
An owner/operator of a dairy CAF that feeds silage shall implement at least one (1) of

the following silage mitigation measures:

1. Operators selecting this option must choose mitigation measure 1a plus one
(1) from mitigation measures 1b, 1c, 1d plus two (2) from mitigation measures

1e, 1f, 1g:

a. Cover the surface of silage piles, except for the area where feed is being

removed from the pile, wit h a plastic tarp that is at least five (5) mils thick

(0.005 inches), multiple plastic tarps with a cumulative thickness of at least
5 mils (0.005 inches), or an oxygen barrier film covered with a UV resistant

material, within seventy

- two (72) hours of las t delivery of material to the

pile.

Choose one of the following:

b. Build silage piles such that the average bulk density of silage piles is
at least 44 lb/cu ft for corn silage and 40 lb/cu ft for other silage types, as

measured in accordance with G ; or

c. When creating a silage pile, adjust filling param eters to assure a calculated
average bulk density of at least 44 lb/cu ft for corn silage and at least 40 lb/cu

ft for other silage types, using a spreadsheet approved by the District; or

d. Incorporate all of the following practices when creating silage piles:

i. Harvest silage crop at ≥65% moisture for corn; and ≥60% moisture
for alfalfa/ grass and other silage crops; and

ii. Incorporate the following parameters for Theoretical Length of Chop
(TLC) and roller opening, as applicable, for the crop bein g harvested.

Crop Harvested TLC Roller Opening
(mm)

Corn with no Processing ≤ 1⁄2 in N/A

Processed Corn <35% dry matter ≤ 3⁄4 in 1

- 4 mm

Alfalfa/Grass ≤ 1.0 in N/A

Wheat/Cereal/Other ≤ 1⁄2 in N/A

iii. Manage silage material delivery such that no more than six (6)

inches of material are un

- compacted on top of the pile.

Choose two of the following:

e. Manage exposed silage (select one of the following):

i. Manage silage piles such that only one silage pile has an

uncovered face and the uncovered face has a total exposed surface

area of less than 2,150 square feet; orImperial County Air Pollution Control District Rule 217

217

- 15

**Draft** ii. Manage multiple uncovered silage piles such that the total exposed
surface area of all uncovered silage piles is less than 4,300 square feet.

f. Maintain silage working face ( select one of the following):

i. Use a shaver/facer to remove silage from the silage pile; or

ii. Maintain a smooth vertical surface on the working face of the silage

pile.

g. Silage Additives (select one of the following):

i. Inoculate silage with hom olactic lactic acid bacteria in accordance

with manufacturer recommendations to achieve a concentration of
at least 100,000 colony forming units per gram of wet forage; or

ii. Apply propionic acid, benzoic acid, sorbic acid, sodium benzoate,

or potassium sorba te at a rate specified by the manufacturer to
reduce yeast counts when forming silage pile; or

iii. Apply other additives at specified rates that have been
demonstrated to reduce alcohol concentrations in silage and/or
VOC emissions from silage and have been a pproved by the District

and EPA.

2. Utilize a sealed feed storage system (e.g., Ag

- Bag) for silage.

3. Implement an alternative mitigation measure(s), not listed above.

C

. Milking Parlor:
An owner/operator of a dairy CAF shall implement at least one (1) of the

following mitigation measures in each milking parlor:

1. Flush or hose milking parlor immediately prior to, immediately after, or

during each milking.

2. Implement an alternative mitigation measure(s), not listed above.

D. Freestall Barn:
An owner/operator of a dairy CAF that houses animals in freestalls shall implement
mitigation measures 1 and 2 and at least one (1) additional mitigation measure in

each freestall barn:

1. Pave feedapron s , where present, for a width of at least eight (8) feet along the

corral side of the feedapron fence for milk and dry cows and at least six (6)

feet along the corral side of the feedapron for heifers.

2. Choose one of the following:

a. Flush, scrape, or vacuum freestall flush lanes immediately prior to,
immediately after, or during each milking; or

b. Flush or scrape freestall flush lanes at least three (3) times per day.

3

. Use non

- manure

- based bedding and non

- separated solids based bedding for
at least 90% of the bedding material, by weight, for freestalls (e.g. rubber

mats, almond shells, sand, or waterbeds).

4. For a large dairy CAF, remove manure that is not dry from ind ividual cow
freestall beds or rake, harrow, scrape, or grade freestall bedding at least once
every seven (7) days.Imperial County Air Pollution Control District Rule 217

217

- 16

**Draft** For a medium dairy CAF, remove manure that is not dry from individual cow

freestall beds or rake, harrow, scrape, or grade freestall bedding at least once
every fourteen (14) days

. 5. Have no animals in exercise pens or corrals at any time.

6. Implement an alternative mitigation measure(s), not listed above.

E. Corrals:
An owner/operator of a dairy CAF that houses animals in corrals shall implement
mitigation measures 1, 2, 3, 4, 5, and 6 and at least one (1) additional mitigation
measure in each corral where animals have been housed in the last thirty (30) days:

1. Pave feedapron s, where present, for a width of at least 8 feet along the c orral

side of the feedapron fence for milk and dry cows and at least 6 feet along the

corral side of the feedapron for heifers.

2. Choose one of the following:

a. Clean manure from corrals at least four (4) times per year with at least

sixty (60) days between cleaning; or

b. Clean corrals at least once between April and July and at least

once between September and December.

3

. Choose one of the following:

a. Scrape, vacuum, or flush concrete lanes in corrals at least once every day

for m ature cows and every seven (7) days for support stock; or

b. Clean concrete lanes such that the depth of manure does not

exceed twelve (12) inches at any point or time.

4. Inspect water pipes and troughs and repair leaks at least once every s even (7) days.

5. Choose one of the following:

a. Slope the surface of the corrals at least 3% where the available space for

each animal is 400 square feet or less. Slope the surface of the corrals at

least 1.5% where the available space for each animal is more than 400

square feet per animal; or

b. Maintain corrals to ensure proper drainage preventing water from standing

more than for ty

- eight (48) hours; or

c. Harrow, rake, or scrape corrals sufficiently to maintain a dry surface.

6. If the CAF has shade structures, they must choose one of the following:

a. Install shade structures such that they are constructed with a light
permeable roofing material; or

b. Install all shade structures uphill of any slope in the corral; or

c. Clean manure from under corral shades at least once every fourteen (14)

days, when weather permits access into the corral; or

d. Install shade structure s o that the structure has a North/South orientation.

7. Manage corrals such that the manure depth in the corral does not exceed
twelve (12) inches at any time or point, except for in

- corral mounding. Manure

depth may exceed 12 inches when corrals become inaccessible due to rain
events. The facility must resume management of the manure depth of 12

inches or lower immediately upon the corral becoming accessible.Imperial County Air Pollution Control District Rule 217

217

- 17

**Draft** 8. Knockdown fence line manure build

- up prior to it exceeding a height of twelve

(12) inches at any time or point. Manure depth may exceed 12 inches when
corrals become inaccessible due to rain events. The facility must resume
management of the manure depth of 12 inches or lower immediately upon the

corral becoming accessible.

9. Choose one of the following:

a. Use lime or a similar absorbent material in the corrals
according to the manufacturer's recommendation; or

b. Apply thymol to the feedlot soil in accordance with the manufacturer's

recommendation.

10. Implement an a lternative mitigation measure(s), not listed above.

F. Solid Manure/Separated Solids:
Owners/operators of a large dairy CAF that handle or store solid manure or separated
solids outside the animal housing shall implement at least one (1) of the following

mitigation measures:

1. Within seventy

- two (72) hours of removal from housing, either:

a. Remove dry manure from the facility; or

b. Cover dry manure outside the housing with a weatherproof covering except

for times when wind events remove the covering, not to exceed twenty

- four

(24) hours per event.

2. Within seventy

- two (72) hours of removal from the drying process, either:

a. Remove separated solids from the facility; or

b. Cover separated solids outside the housing with a weatherproof covering
from October through May, except for times when wind events remove the

covering, not to exceed twenty

- four (24) hours per event.

3

. Implement an alternative mitigation measure(s), not list ed above.

G. Liquid Manure:
An owner/operator of a dairy CAF that handles manure in a liquid form shall
implement at least one (1) of the following mitigation measures:

1. U se a phototropic lagoon.

2. Use an anaerobic treatment lagoon designed in accordance with NRCS

Guideline No. 359.

3

. Remove solids from the waste system with a solid separator system, prior to

the waste entering the lagoon.

4

. Maintain lagoon pH between 6.5 and 7.5.

5

. Implement an alternative mitigation measure(s), not listed above.

H. Land Application:
An owner/operator of a dairy CAF who land applies manure to crop land on the facility

shall implement the following applicable mitigation measures:

1. If the CAF applies solid manure, choose one of the following:

a. Incorporate all solid manure within seventy

- two (72) hours of landImperial County Air Pollution Control District Rule 217

217

- 18

**Draft** application; or

b. Only apply solid manure that has been treated with an anaerobic treatment

lagoon, aerobic lagoon, or digester system; or

c. Apply no solid manure with a moisture con tent of more than 50%; or

d. Implement an alternative mitigation measure(s), not listed above.

2. If the CAF applies liquid manure, choose one of the following:

a. Only apply liquid manure that has been treated with an anaerobic

treatment lagoon, aerobi c lagoon, or digester system; or

b. Allow liquid manure to stand in the fields for no more than twenty

- four (24)

hours after irrigation; or

c. Apply liquid/slurry manure via injection with drag hose or similar apparatus;

or

d. Implement an alternative mitigation measure(s), not listed above.

C. 6 .c Other Cattle CAF: Owners/Operators of an other cattle CAF shall

comply with the mitigation measures in Table 2 .3

Table 2 .3 Other Cattle Mitigation Measure Requirement s

A. Feed:
An owner/operator of an other cattle CAF shall implement at least two (2) of the

following feed mitigation measures:

1. Feed according to National Research Council (NRC) guidelines.

2. Feed steam

- flaked, dry rolled, cracked or ground corn or other steam

- flaked,

dry rolled, cracked or ground cereal grains.

3

. Remove uneaten wet feed from feed bunks within twenty

- four (24) hours after

the end of a rain event.

4

. Implement an alternative mitigation measure(s), not listed above.

B. Silage:

An owner/operator of an other cattle CAF that feeds silage shall implement at least
one (1) of the following silage mitigation measures:

1. Operators selecting this option must choose mitigation measure 1a plus one
(1) from mitigation measures 1b, 1c, 1d plus two (2) from mitigation measures

1e, 1f, 1g:

a. Cover the surface of silage piles, except for the area where feed is being

removed from the pile, with a plastic tarp that is at least five (5) mils thick

(0.005 inches), multiple plastic tarps with a cumulative thickness of at least 5

mil s (0.005 inches), or an oxygen barrier film covered with a UV resistant

material, within seventy

- two (72) hours of last delivery of material to the pile.

Choose one of the following:

b. Build silage piles such that the average bulk density of si lage piles is
at least 44 lb/cu ft for corn silage and 40 lb/cu ft for other silage types as

measured in accordance with G ; orImperial County Air Pollution Control District Rule 217

217

- 19

**Draft** c. When creating a silage pile, adjust filling parameters to assure a calculated
average bulk density of at least 44 lb/c u ft. for corn silage and at least 40 lb/cu

ft for other silage types using a spreadsheet approved by the District; or

d. Incorporate all of the following practices when creating silage piles:

i. Harvest silage crop at ≥65% moisture for corn; and ≥60% m oisture
for alfalfa/ grass and other silage crops; and

ii. Incorporate the following parameters for Theoretical Length of Chop
(TLC) and roller opening, as applicable, for the crop being harvested.

Crop Harvested TLC Roller Opening
(mm)

Corn with no Processing ≤ 1⁄2 in N/A

Processed Corn <35% dry matter ≤ 3⁄4 in 1

- 4 mm

Alfalfa/Grass ≤ 1.0 in N/A

Wheat/Cereal/Other ≤ 1⁄2 in N/A

iii. Manage silage material delivery such that no more than six (6)

inches of material are un

- compacted on top of the pile.

Choose one of the following:
e. Manage exposed silage (select one of the following):

i. Manage silage piles such that only one silage pile has an uncovered

face and the uncovered face has a total exposed surface area of less

than 2,150 square feet; or

ii. Manage multiple uncovered silage piles such that the total exposed
surface area of all uncovered silage piles is less than 4,300 square feet.

f. Maintain silage working face (select one of the following):

i

. Use a shaver/face r to remove silage on th e working face of the silage

pile.

ii. Maintain a smooth vertical surface on the working face of the silage

pile.

g. Silage Additives (select one of the following):

i. Inoculate silage with homolactic lactic acid bacteria in accordance

with manu facturer recommendations to achieve a concentration of at
least 100,000 colony forming units per gram of wet forage; or

ii. Apply propionic acid, benzoic acid, sorbic acid, sodium benzoate, or
potassium sorbate at a rate specified by the manufacturer t o reduce
yeast counts when forming silage pile; or

iii. Apply other additives at specified rates that have been
demonstrated to reduce alcohol concentrations in silage and/or VOC

emissions from silage and have been approved by the District and EPA.

2. Utilize a sealed feed storage system (e.g., Ag

- Bag) for silage.

3

. Implement an alternative mitigation measure(s), not listed above.Imperial County Air Pollution Control District Rule 217

217

- 20

**Draft**

C

. Freestalls:
An owner/operator of an other cattle CAF that houses animals in freestalls shall

implement mitigation measures 1 and 2 and at least one (1) additional mitigation

measure in each freestall barn:

1. Vacuum, scrape, or flush freestalls at least once every seven (7) days.

2. Pave feedapron s , where present, for a width of at least six (6) feet along the

corral side of the feedapron

.

3. Use non

- manure

- based bedding and non

- separated solids based bedding for
at least 90% of the bedding material, by weight, for freestalls (e.g. rubber

mats, alm ond shells, sand, or waterbeds).

4. Remove manure that is not dry from individual cow freestall beds or
rake, harrow, scrape, or grade bedding in freestalls at least once every seven
(7) days.

5. I mplement an alternative mitigation measure(s), not listed above.

D

. Corrals:

An owner/operator of a other cattle CAF that houses animals in corrals shall
implement mitigation measures 1, 2, 3, 4, and 5 and at least one (1) additional

mitigation measure in each corral where animals have be en housed in the last thirty
(30) days:

1. Scrape corrals twice a year with at least 90 days between cleanings,

excluding in

- corral mounds.

2. Choose one of the following:

a. Scrape, vacuum, or flush concrete lanes in corrals at least once every

seven (7) days; or

b. Clean concrete lanes such that the depth of manure does not

exceed twelve (12) inches at any point or time.

3. Inspect water pipes and troughs and repair leaks at least once every seven
(7) days.

4. Choose one of the followin g:

a. Slope the surface of the corrals at least 3% where the available space for

each animal is 400 square feet or less. Slope the surface of the corrals at

least 1.5% where the available space for each animal is more than 400

square feet per animal.

b. Maintain corrals to ensure proper drainage preventing water from standing

more than forty

- eight (48) hours; or

c. Harrow, rake, or scrape corrals and corrals sufficiently to maintain a dry

surface, unless the corrals have not held animals in the last th irty (30) days.

5. If the CAF has shade structures, they must choose one of the following:

a. Install shade structures such that they are constructed with a light
permeable roofing material; or

b. Install all shade structures uphill of any slope in the corral; or

c. Install shade structure so that the structure has a North/South orientation.Imperial County Air Pollution Control District Rule 217

217

- 21

**Draft** 6. Manage corrals and concrete lanes such that the dry manure depth in the pen
does not exceed twelve (12) inches at any time or point, except for in

- corral

mounds . Manure depth may exceed twelve (12) inches when corrals become

inaccessible due to rain events. The facility must resume management of the
manure depth of twelve (12) inches or lower immediately upon the corral

becoming accessible.

7. Knockdown fence li ne manure build

- up prior to it exceeding a height of twelve
(12) inches at any time or point. Manure depth may exceed twelve (12) inches

when corrals become inaccessible due to rain events. The facility must
resume management of the manure depth of twelve (12) inches or lower

immediately upon the corral becoming accessible.

8. Choose one of the following:

a. Use lime or a similar absorbent material in the corrals according to the

manufacturer's recommendation; or

b. Apply thymol to the feedlot soil in ac cordance with the manufacturer's

recommendation.

9. Implement an alternative mitigation measure(s), not listed above.

E. Solid Manure/Separated Solids:

An owner operator of an other cattle CAF that handles or stores solid manure or
separated solids outside the animal housing shall implement at least one (1) of the

following mitigation measures:

1. Within seventy

- two (72) hours of removal from housing, either:

a. Remove dry manure from the fac ility; or

b. Cover dry manure outside the housing with a weatherproof covering from

during th ose months where rain occurs , except for times when wind events

remove the covering, not to exceed twenty

- four (24) hours per event.

2. Within seventy

- two (72) hours of removal from the drying process, either:

a. Remove separated solids from the facility; or

b. Cover separated solids outside the housing with a weatherproof covering
from October through May, except for times when wind events remove the

covering, not to exceed twenty

- four (24) hours per event.

3. Implement an alternative mitigation measure(s), not listed above.

F

. Liquid Manure:
An owner/operator of an other cattle CAF that handles manure in a liquid
form shall implement at least one (1) of the following mitigation measures:

1. Use a phototropic lagoon.

2. Use an anaerobic treatment lagoon designed in accordance with NRCS

Guideline No. 359.

3. Remove solids f rom the waste system with a solid separator separation

system.

4. Maintain lagoon pH between 6.5 and 7.5.Imperial County Air Pollution Control District Rule 217

217

- 22

**Draft** 5. Implement an alternative mitigation measure(s), not listed above.

G

. Land Application:
An owner/operator of an other cattle CAF who land applies manure to crop land on
the facility shall implement the following applicable mitigation measures:

1. If the CAF applies solid manure, choose one of the following:

a. Incorporate all solid manure within seventy

- two (72) hours of land

app lication; or

b. Only apply solid manure that has been treated with an anaerobic treatment

lagoon, aerobic lagoon, or digester system; or

c. Apply no solid manure with a moisture content of more than 50%; or

d. Implement an alternative mitigation measure( s), not listed above.

2. If the CAF applies liquid manure, choose one of the following:

a. Only apply liquid manure that has been treated with an anaerobic

treatment lagoon, aerobic lagoon, or digester system; or

b. Allow liquid manure to stand in the fields for no more than twenty

- four (24)

hours after irrigation; or

c. Apply liquid/slurry manure via injection with drag hose or similar apparatus;

or

d. Implement an alternative mitigation measure(s), not listed above.

C. 6 .d Swine CAF: An owner/operator of a swine CAF shall comply with

the mitigation measures in Table 2 .4

Table 2

. 4 Swine Mitigation Measure Requirement s

A. Feed:
Owners/operators of a swine CAF shall implement at least two (2) of the following
feed mitigation measures:

1. Use grain with an average particle size diameter between 300

- 800 microns.

2. Utilize phase feeding and split

- sex feeding programs to more closely match

the nutrient requirements of animals.

3

. Implement an alternative mitigation measure(s), not listed above.

B. Housing:
Owners/operators of a swine CAF shall implement at least three (3) of the

following mitigation measures in each animal housing unit:

1. Use a slatted floor system (slatted floors over deep pits or shallow flush
alleys), with daily manure removal for shallow flush alleys and weekly removal

from deep pits.

2. Manage pens such that the manure depth in the pen does not exceed twelve
(12) inches at any time or point.

3

. Inspect water pipes and troughs and repair leaks at least once every seven
(7) days.Imperial County Air Pollution Control District Rule 217

217

- 23

**Draft** 4

. Implement an alternative mitigation measure(s), not listed above.

C. Liquid Manure:
Owners/operators of a swine CAF that handle manure in a liquid form shall implement
at least one (1) of the following mitigation measures:

1. Use a phototropic lagoon.

2. Use an anaerobic treatment lagoon designed in accordance with NRCS

Guideline No. 359.

3

. Maintain lagoon pH between 6.5 and 7.5.

4

. Implement an alternative mitigation measure(s), not listed above.

D. Land Application:
Owners/operators of a swine CAF who land apply liquid manure to crop land on the
facility shall implement one (1) of the following mitigation measures:

1. Allow liquid manure to stand in the fields for no more than twenty

- four (24)

hours after irrigation.

2. Implement an alternative mitigation measure(s), not listed above.

C.5.e Layer CAF: An owner/operator of a layer CAF shall comply with the

mitigation measures in Table 2

. 5

.

Table 2

. 5 Layer Mitigation Measures Requirements

A. Feed:
Owners/operators of a layer CAF shall implement at least one (1) of the following feed

mitigation measures:

1. Choose one of the following:

a. Feed according to NRC guidelines; or

b. Feed animals probiotics designed to improve digestion according to

manufacturer recommendations; or

c. Feed animals an amino acid supplemented diet to meet their nutrient

requirements; or

d. Feed animals feed additives such as amylase, xylanase, and

protease, designed to maximize digestive efficiency according to

manufacturer recommendations.

2. Implement an alternative mitigation measure(s), not listed above.

B. Housing:
Owners/operators of a layer CAF shall implement at least two (2) of the following

housing mitigation measures:

1. Use drinkers that do not drip continuously.

2. Inspect water pipes and drinkers and repair leaks daily.

3

. Implement an alternative mitigation measure(s), not listed above.Imperial County Air Pollution Control District Rule 217

217

- 24

**Draft**

C. Solid Manure/Separated Solids:
Owners/operators of a layer CAF that handle or store solid litter/manure or separated
solids outside the animal housing shall implement at least one (1) of the following

mitigation measures:

1. Within seventy

- two (72) hours of removal from housing, either:

a. Remove all litter/manure from the facility; or

b. Cover litter/manure outside the housin g with a weatherproof covering

during th ose months where rain occurs , except for times when wind events

remove the covering, not to exceed twenty

- four (24) hours per event.

2. Implement an alternative mitigation measure(s), not listed above.

D. Liquid Manure:
Owners/operators of a layer CAF that handle manure in a liquid form shall implement
at least one (1) of the following mitigation measures:

1. Use a phototropic lagoon.

2. Use an anaerobic treatment lagoon designed in accordance with NRCS

Guideline No. 359.

3

. Maintain lagoon pH between 6.5 and 7.5.

4

. Implement an alternative mitigation measure(s), not listed above.

C. 6 .d Broiler, Duck, or Turkey CAF: An owner/operator of a chicken
broiler, duck, or turkey CAF shall comply with the mitigation

measures in Table 2

. 6

Table 2

. 6 Broiler, Duck or Turkey Mitigation Measure Requirement s

A. Feed:
Owners/operators of a broiler, duck, or turkey CAF shall implement at least one (1) of

the following feed mitigation measures:

1. Choose one of the following:

a. Feed according to NRC guidelines; or b. Feed animals probiotics
designed to improve digestion according to manufacturer

recommendations; or

b. Feed animals probiotics designed to improve digestion according to

manufacturer recommendations; or

c. Feed animals an amino acid supplemented diet to meet t heir nutrient

requirements; or

d. Feed animals feed additives such as amylase, xylanase, and
protease, designed to maximize digestive efficiency according to

manufacturer recommendations.

2. Implement an alternative mitigation measure(s), not listed above.

B. Housing:Imperial County Air Pollution Control District Rule 217

217

- 25

**Draft**

Owners/operators of a broiler or duck CAF shall implement at least four (4) of

the following housing mitigation measures:

Owners/operators of a turkey CAF shall implement at least five (5) of the following

housing mitigation measures:

1. Use a dry housing cleaning method at all times, except when a wet cleaning
method is required for animal health or biosecurity issues, pursuant to Section

C.1.e

. 2. Use drinkers that do not drip continuously.

3

. Inspect drinkers at least once every seven (7) days and adjust the height,

volume, and location of drinkers if necessary.

4

. Inspect water pipes and drinkers and repair leaks daily.

5

. If the facility houses turkeys in pens, install mounds or berms up gradient to

prevent the runoff of storm water into pens.

6

. Implement an alternative mitigation measure(s), not listed above.

C. Solid Manure/Separated Solids:
Owners/operators of a broiler, duck, or turkey CAF that handles or stores solid
litter/manure or separated solids outside the animal housing shall implement at least
one (1) of the following mitigation measures:

1. Within seventy

- two (72) hours of removal from housing, either:

a. Remove all litter/manure from the facility; or

b. Cov er litter/manure outside the housing with a weatherproof covering

during th ose months where rain occurs, except for times when wind events

remove the covering, not to exceed twenty

- four (24) hours per event.

2. Implement an alternative mitigation measure(s), not listed above.

D. Liquid Manure:
Owners/operators of a broiler, duck, or turkey CAF that handles manure in a liquid
form shall implement at least one (1) of the following mitigation measures:

1. Use a phototropic lagoon.

2. Use an anaerobic treatment lagoon designed in accordance with NRCS

Guideline No. 359.

3

. Maintain lagoon pH between 6.5 and 7.5.

4

. Implement an alternative mitigation measure(s), not listed above.

D. Exemptions

Except for the recordkeeping requirements of Section F, the provisions of this

rule shall not ap ply to a CAF, which remains at all times below all of the

regulatory thresholds in Table 3 :

Table 3

- Large CAF Definition By Livestock CategoryImperial County Air Pollution Control District Rule 217

217

- 26

**Draft** E. Monitoring Requirements

Owners/operators shall comply with the requirements of Section E .1 when

impl ementing all applicable Mitigation Measures in Section C

. 6

.

E .1 Lagoon Monitoring

Owners/operators using a mitigation measure for a lagoon in their approved
emissions mitigation plan shall monitor the lagoon for the required parameter(s),

a s determined by the District and EPA, at least once every calendar quarter, with

at least 30 days between monitoring tests.

F. Administrative Requirements

F .1 Records for Exempt CAFs

An owner/operator claiming exemption pursuant to section D shall maintain
records on a quarterly basis of the number and type of animals and production
group at the facility. Examples of records that may be used to show proof of

exemption include, but are not limited to, Dairy Herd Improvement Association

records and animal inventories maintained for financial purposes.

F .2 General Records for CAFs Subject to Section C Requirements

F .2.a Permits: Owners/operators shall maintain copies of all facility

permits.

F .2.b Number of Animals: Owner/operators shall maintain record s of the
number of animals of each species and production group at the

facility on a quarterly basis. Examples of records that may be used

include, but are not limited to, Dairy Herd Improvement Associatio n records and animal inventories done for financial purposes. Livestock Category Large CAF Definition

Beef Feedlots 3,500 beef cattle

Dairy 500 milking cows

Other Cattle Facility 3 ,500 calves, heifers, or other cattle

Poultry Facility

Chicken 400 ,000 head

Duck 400 ,000 head

Turkey 100,000 head

Swine Facility 3,000 head

Horses Facility 2,500 head

Sheep and Goat Facilities 15,000 head of sheep, goats, or any combination of the two

Any livestock facility not listed

above 30,000 headImperial County Air Pollution Control District Rule 217

217

- 27

**Draft** F .2.c Owner/operators shall maintain records sufficient to demonstrate

compliance with all applicable mitigation measures.

F .3 Records for Feed and Silage Mitigation Measures

F .3.a Feed Content/Feed Additive: Records of feed content, formulation,

and quantity of feed additive utilized, sufficient to verify compliance
with approved feed content and feed additive mitigation measures.

Records may include laboratory test results and other tes t results.

F .3.b Feed Processing: Records sufficient to verify that feed was given to

animals (for example, put in feed bunks) or disposed of within the

time allowed by the approved mitigation measure.

F .3.c Feed Removal: Records demonstrating that fee d is removed within

the specified time period.

F .3.d Feed Storage: Records demonstrating that feed was kept in

weatherproof storage for the required period. Records for feed

storage shall be require d when implementing the mitigation

measures.

F .3.e Feed Moisture Content: Records for annual testing to determine

moisture content of mixed ration food that contains at least 30% by
weight of silage. Records for feed moisture content shall be

required when implementing the mitigation measures.

F .3.f Silage C overs: Records demonstrating that silage was covered,
including the thickness of the cover, in compliance with any silage
mitigation measures chosen. Examples of records that show

compliance include, but are not limited to, invoices demonstrating

that sila ge covers were installed and maintained at the facility,
cover thickness, records demonstrating the thickness of the silage

cover, and maintenance records for repair or replacement of

damaged covers.

F .3.g Silage Pile Bulk Density at Pile Formation: Recor ds of required
practices used to ensure adequate bulk density of silage piles
and/or measured bulk density of silage piles. Records for silage

bulk density shall be required when implementing the mitigation

measures.

F .3.h Silage Pile Formation: Records demonstrating that silage piles were
formed in compliance with any silage mitigation measures chosen.Imperial County Air Pollution Control District Rule 217

217

- 28

**Draft** Examples of records that show compliance include, but are not
limited to, moisture content of silage pile material, records of the
length of cut for the c rop being harvested, records of silage material

delivery date, records that there are no more than six inches of

material un

- compacted on top of the pile of silage piles. Records for
silage pile formation shall be required when i mplementing the

mitigation measures.

F .3.i Silage Leachate: Records demonstrating that the leachate was

collected either by an active or passive system and the system was
maintained in a manner approved by the APCO and EPA.

Examples of records that show compliance include, but are not limited to, design specification for the system and a maintenance

checklist for inspections and repairs.

F .3.j Exposed Silage: Records demonstrating that silage piles are

managed such that exposed surface area is in compliance with any

silage m itigation measures chosen. Records for exposed silage

shall be required when implementing the mitigation measures.

F .3.k Silage Inoculation: Records demonstrating silage inoculation with

either homolactic lactic acid bacteria, propionic acid, benzoic acid,

sorbic acid sodium benzoate, or potassium sorbate. Records shall
include rate specified by manufacturer and rate applied by
operator/owner, date of inoculation and date of silage pile formation

completion. Records for silage inoculatio n shall be required when

implementing the mitigation measures.

F .3.l VOC Emission Control Systems: Source test results,
monitoring/inspection logs and maintenance logs.

F .3.m Weatherproof Coverings: Records verifying that any covers used

are installed, u sed, and maintained in accordance with
manufacturer recommendations and any applicable standard
approved by the APCO and EPA. For covers removed by wind

events, an estimate of when the cover was removed and

documentation of when the cover was replaced.

F

. 3.n Alternative Feed or Silage Mitigation Measures: Records sufficient

to verify compliance with each approved alternative mitigation

measure to the satisfaction of the APCO and EPA.

F .4 Records for Milking Parlor Mitigation Measures

F .4.a Records verifying that the milking parlor was flushed or hosedImperial County Air Pollution Control District Rule 217

217

- 29

**Draft** immediately prior to, immediately after, or during each milking.

F .5 Records for Freestall/Corral/Animal Housing

F .5.a Bedding Material: Records of the material(s) used for animal

bedding, including the percentage of non

- manure. Records for

bedding material shall be required when implementing the

mitigation measures.

F .5.b Clean/Scrape/Flush/Vacuum: Records sufficient to demonstrate that
the removal of manure/bedding was performed as required in the

approved mitigation measure. This may be a log when
owners/operators initial that they performed all applicable practices.

F .5.c Depth of Manure: Records demonstrating the measurement of the

manure depth and measures taken to remove mater ial greater than

the amount allowed by the mitigation measure.

F .5.d Foggers: Records, such as design specifications, demonstrating
that foggers used to comply with rule requirements meet the

required standards.

F

. 5.e Lime, Thymol, and Eugenol: Records o f the quantity of material
applied and the area over which it was applied. Owners/operators

shall also maintain manufacturer’s product application

recommendations to demonstrate compliance with the

recommendations.

F .5.f Litter Additives: Records, including a copy of the manufacturer’s

recommendations, which demonstrate litter additives used to

comply with rule requirements are administered in accordance with

manufacturer's specifications

.

F .5.g Roof Structure/Runoff: Recor ds such as design specifications and
maintenance logs demonstrating that any roof runoff structures

used to comply with rule are in compliance with applicable

standards in NRCS Field Office Technical Guide Code 558 or other

applicable standards approved by the APCO and EPA.

F .5.h S hade Structures: Records, such as design specifications,

demonstrating that any shade structures used to comply with rule

requirements meet the required standards.

F .5.i Slope/Drainage: Records sufficient to verify that harrowi ng and
sloping of corrals used to comply with rule requirements are

implemented as required in the rule

.Imperial County Air Pollution Control District Rule 217

217

- 30

**Draft** F .5.j Vacuum/Land Apply Cattle Waste: Records showing time of

vacuuming and time of land application of the vacuumed solids.

F .5.k V OC Emission Cont rol Systems: Source test results,
monitoring/inspection logs and maintenance logs.

F .5.l Water Pipes, Drinkers, and Water Troughs: Records of inspections

performed and repairs completed.

F .5.m Wet Feed Removal: Records verifying that animal housing was
inspected for wet feed after a rain event/inspection and that the wet

feed was removed.

F .5.n Alternative Freestall/Corral/Animal Housing Mitigation Measure : Records that demonstrate compliance with each approved

alternative mitigation measure to the sat isfaction of the APCO and

EPA.

F .6 Records for Solid Manure/Separated Solids Outside of Animal Housing

E.6.a Aerated Static Pile: Records of monitoring/inspection logs and

maintenance logs.

F .6.b Removal of Manure/Separated Solids: Records sufficient to verify
when the waste was removed from freestall/corral/animal housing

and when the waste was either removed from the facility or land

incorporated.

F .6.c Storage of Manure/Separated Solids in an A erobic/Anaerobic

Digester

.

F .6.c.1 Records, such as design specifications and maintenance
logs, demonstrating that any aerobic/anaerobic digesters

used to comply with rule requirements meets the

standards in NRCS Field Office Technical Guide Code

366 or 365 or other applicable standards approved by the

APCO and EPA.

F .6.c.2 Records of the quantity of manure/separated solids, as

needed, to comply with the approved mitigation measure.

F .6.d VOC Emission Control Systems: Source test results,
monitoring/i nspection logs and maintenance logs.Imperial County Air Pollution Control District Rule 217

217

- 31

**Draft** F

. 6.e Weatherproof Coverings: Records verifying that any covers used

are installed, used, and maintained in accordance with
manufacturer recommendations and any applicable standard
approved by the APCO and EPA. For covers removed by wind

events, an estimate of when the cover was removed and
documentation of when the manure/separated solid piles were re

covered.

F .6.f Alternative Solid Manure/Separated Solids Mitigation Measure:

Records that demonstrate compliance w ith each approved
alternative mitigation measure to the satisfaction of the APCO and

EPA

.

F .7 Records for Liquid Manure

F .7.a Lagoons

F .7.a.1 Test results of the approved monitoring parameter and

records of m easures taken to bring the parameter within

specified limits.

F .7.a.2 Design specifications demonstrating that the lagoon
meets the requirements listed in the NRCS Field Office
Technical Guide for the lagoon type or other applicable
standards approved by the APCO and EPA.

F .7.b Solids Separator Sy stem

F .7.b.1 Records, such as design specifications and maintenance

logs, demonstrating that the solids separator system meets
the approved mitigation measure specifications and is

operated and maintained as recommended by the

manufacturer.

F .7. b.2 Non

- Standard Chemicals: Record the quantity of material

used. Owners/operators shall also maintain manufacturer’s

product usage recommendations to demonstrate

compliance with the manufacturer’s recommendations.

F .7.b.3 Non

- Standard Equipment for Solid Separator System:

Records, such as design specifications and maintenance

logs, demonstrating that the solids separator equipment
meets the approved mitigation measure specifications and

is operated and maintained as recommended by the

manufacturer.Imperial County Air Pollution Control District Rule 217

217

- 32

**Draft** F .7.c VOC Emission Control Systems, including biofilters and other VOC

emission control systems: s ource test results, monitoring/inspection

logs and maintenance logs.

F .7.d Alternative Liquid Manure Mitigation Measures: Records that

demonstrate compliance with the approved alternative mitigation

measure, to the satisfaction of the APCO and EPA.

F .8 Records for Land Application of Manure

F .8.a Time to Incorporate Manu re: Records indicating the time the

manure was applied and when the waste was incorporated into the

soil.

F .8.b Lagoon

- Treated or Digester

- Treated Manure: Records that
demonstrate that the applied manure came from an aerobic lagoon,

an anaerobic treatment lagoon or a digester system.

F .8.c Liquid Waste Standing in Field: Records that demonstrate that

liquid manure does not remain in the field for longer than twenty

four (24) hours after application.

F .8.d Moisture Content of Solid Manure: Records of t he moisture content

of applied solid manure.

F. 9 Source Testing Requirements

F

. 9 .a Owners/operators shall conduct an initial source test of all VOC

control devices and aerated static piles used to comply with rule
requirements not later than six (6) months after the date of
installation, and at least once every twelve (12) months thereafter
unless the APCO, ARB, and EPA determines more frequent testing

is required to demonstrate compliance with rule requirements.

F

. 9 .b Owners/operators using phototropic lagoons as a mitigation

measure in their emission mitigation plan shall test lagoons for

bacteria concentration, bacteriochlorophyll concentration, or a
surrogate parameter determined by the APCO, ARB, and EPA not

later than six (6) months after the date of issuance of the permit,
and least once every twelve (12) months thereafter unless the
APCO, ARB, and EPA determines more frequent testing is required

to demonstrate compliance with rule requirements

.

F

. 9 .c Owners/ope rators using aerobic lagoons as a mitigation measure inImperial County Air Pollution Control District Rule 217

217

- 33

**Draft** their emission mitigation plan shall test lagoons for dissolved
oxygen content not later than six (6) months after the date of
issuance of the permit, and at least once every twelve (12) months

therea fter, unless the APCO, ARB, and EPA determines more

frequent testing is required to demonstrate compliance with rule

requirements.

F

. 9 .d Owners/operators using mechanically aerated lagoons as a

mitigation measure in their emission mitigation plan shall test lagoons for biological oxygen demand within six (6) months after

the date of issuance of the permit, and at least once every twelve
(12) months thereafter, unless the APCO, ARB, and EPA

determines more frequent testing is required to demonstrate

comp liance with rule requirements.

F

. 9 .e Owners/operators using lagoon pH as a mitigation measure in their
emission mitigation plan shall test lagoons for pH within six (6)

months after the date of issuance of the permit, and at least once

every twelve (12) m onths thereafter, unless the APCO, ARB, and

EPA determines more frequent testing is required to demonstrate

compliance with rule requirements.

F

. 9 .f Owners/operators shall test any other parameters determined
necessary by the APCO, ARB, and EPA to de monstrate compliance with rule requirements as frequently as determined
necessary by the APCO, ARB, and EPA.

G. Test Methods

Owners/operators shall conduct applicable testing using the following methods or

any other alternat ive test method approved by the APCD and EPA. Test methods

referenced shall be the latest approved version.

G .1 Bacterial Concentration

- ASTM D4454

- 85(2009) Standard Test
Method for Simultaneous Enumeration of Total and Respiring
Bacteria in Aquatic Systems by Microscopy or ASTM D4455

- 85(2009) Standard Test Method for Enumeration of Aquatic

Bacteria by Epifluorescene M icroscopy Counting Procedure.

G .2 Bateriochlorophyll a Concentration

- ASTM D3731

- 87 (2004)
Standard Practices for Measurement of Chlorophyll Content of
Algea in Surface Waters.

G .3 Biological Oxygen Demand

- EPA Method 405.1 (Biochemical
Oxygen De mand (5 days, 20oC)).Imperial County Air Pollution Control District Rule 217

217

- 34

**Draft** G .4 Bulk Packing Density of Silage Piles

- Remove representative
samples of known volume using a forage probe or other instrument
and weighing the samples. Bulk density is the weight of the sample

divided by t he volume of material r emoved fro m the pile. The bulk
density shall be determined as the average of the least three

representatives samples per silage pile.

G .5 Biofilter Control Efficiency

- The control efficiency of a biofilter shall
be determined using SCAQMD Method 25.3 ( Determination of Low

Concentration Non

- Methane Non

- Ethane Organic Compound

Emissions from Clean Fueled Combustion Sources). The SCAQMD

Method 25.3 apparatus should be connected to sample directly

inside the flu x chamber or duct as applicable. Compost emissions

are considered as water soluble sources where the 50 ppm
applicability limit of Method 25.3 does not apply. Samples fro m more than one location may be combined (composited) per

SCAQMD Rule 1133.2 Attachment A Section 8.

G .6 Non

- Biofilter Control Efficiency

- The control efficiency of a VOC

emission control system that is not a biofilter shall be determined

using:

G

. 6.a EPA Methods 2 (Determination of Stack Gas Velocity and

Volumetric Flow Rate (Type s Pitot Tube)), 2A (Volume
Meters, or 2D (Rate Meters) for measuring flow rates.

G .6.b EPA Methods 25, 25A, or 25B for measuring total gaseous
organic concentrations at the inlet and outlet of the control

device.

G .6.c EPA Method 18 or ARB Method 422 shall be used to

determine the emissions of exempt compounds.

G .7 Dissolved Oxygen

- EPA Method 360.1 (Oxygen, Dissolved
(Membrane Electrode)) or 360.2 (Oxygen, Dissolved (Modified

Winker, Full

- Bottle Technique)).

G .8 Moisture Content for Biofilters

- Test Methods for the Examination
of Compost and Composting (TMECC) Method 3.09 (Total Solids
and Moisture at 70±5 degrees Centigrade).

G .9 Moisture Content for Silage

- Soil, Plant and Water References

Methods for the Western Region (Third Edition, 2005) Test
Methods P1.10 (Dry Matter Content

- Gravimetric), or AmericanImperial County Air Pollution Control District Rule 217

217

- 35

**Draft** Association of Agricultural and Biological Engineers (ASABE)
Standard S358.2, National Forage Testing Association (NFTA)

Method 2.1.3 and 2.1.4 AOAC Me thods: 930.15,934.01,991.01,

and 2001.1.

G .10 Organic Loading

- Standard Methods of the Examination of Water

and Wastewater Method 2540G

- Solids.

G .11 pH

- EPA Method 150.2 (pH, Electrometric) or TMECC Method

04.11

- A (1:5 Slurry pH)

G .12 Temperatur es

- EPA Method 170.1 (Temperature

- Thermometric)

G .13 Alternatives Test Methods

- An operator may use an alternative test

method to those listed in Sections G through G. 1 2 for which written
approval of the APC D and EPA has been obtained.

H. Compliance Determination

H.1 Any violation of this underlying LCAF permit constitutes a violation of Rule

217.

H.2 Pursuant to District Rule 212, the APC D may update LCAF permits upon

annual renewal , or as necessary, to include conditions necessary for

compliance.

I. Annual Renewal Permits

Annual Renewal Permits to Operate for LCAF shall be renewed according to the

conditions set forth within Rule 206 and Rule 301.

J. Recordkeeping

All owners of confined animal facili ties, regardless of size, shall keep records that

specify the daily number and type of animals maintained at the facility

. i n each
production stage, the current ATC or PTO permit, the current Facility Mitigation

Plan and other records necessary to demonstr ate compliance. Current records

shall be maintained and kept on

- site for two years, except for major sources

where records shall be maintained and kept on

- site for 5 years, after the date of
each entry and shall be presented to the APC D , or his designee, within 72 hours

of notice to the owner or operator.

K. Public Review

Noticing prior to issuing any permit for LCAF, the draft permit shall be availableImperial County Air Pollution Control District Rule 217

217

- 36

**Draft** for public review and inspection for a period of no less than 30 calendar days. To

identify the location , the public notice shall include only the property address, city
and state of the LCAF, as well as any other relevant permit information.

L. Non

- duplication

Information required to be submitted pursuant to other Air District Rules and
Regulations that are applicable to a LCAF, may be excluded from the mitigation
measures specified in section C.1.e of this rule

, as determined by the APC D

.

M. Other Provisions

A ny permit issued to a LCAF is subject to all applicable provisions of the
California Health & Safety Code and the Air District Rules and Regulations.