SJVUAPCD 4566 - 1 08/18/11

RULE 4566 ORGANIC MATERIAL COMPOSTING OPERATIONS (A dopted August 18,

2011)

1.0 Purpose

The purpose of this rule is to limit emissions of v olatile organic compounds (VOC) from composting operations.

2.0 Applicability

The provisions of this rule apply to composting fac ilities that compost and/or stockpile organic material.

3.0 Definitions

3.1 Active Phase: the phase of the composting process that begins when organic materials are mixed or piled together for compostin g and ends when any of the following conditions is met:

3.1.1 The organic material has been composted for a perio d of 22 consecutive days;

3.1.2 The organic material respiration rate is no more th an 20 milligrams of oxygen consumed per gram of volatile solids per day as measured by direct respirometry using the TMECC Method 05-08-A – Specific Oxygen Uptake Rate (April 7, 2002);

3.1.3 The organic material emits no more than seven (7) m g carbon dioxide per gram of organic material (CO 2 -C) per day, as measured using the

TMECC Method 05-08-B – Carbon Dioxide Evolution Rat e (April 7, 2002); or

3.1.4 The organic material has a Solvita® Maturity Index of five (5) or greater as measured using the TMECC Method 05-08-E – Solvita® Maturity Test (April 7, 2002).

3.2 Agricultural Composting: composting of agricultura l materials at an agricultural operation site, which were generated on site and wi ll be used on site.

3.3 Agricultural Material: vegetative materials that a re produced wholly from agricultural operations; the operation or maintenan ce of a system for the delivery of water in agricultural operations; or ma terial not produced wholly from agricultural operations, but that are essentia l to agricultural operations.SJVUAPCD 4566 - 2 08/18/11

3.4 Agricultural Operations: operations primarily invo lved with the growing, harvesting, and packing of crops; the raising of fo wl or animals for the primary purpose of earning a living; or conducting agricult ural research or instruction by

an educational institution.

3.5 Air Pollution Control Officer (APCO): the Air Poll ution Control Officer of the San Joaquin Valley Unified Air Pollution Control Di strict.

3.6 Alternative Mitigation Measure: a mitigation measu re proposed by an operator, as a means of complying with the rule requirements, that is determined by the APCO to achieve VOC reductions that are equal to or greater than the VOC reductions that would be achieved by other mitigati on measures listed in this

rule.

3.7 Animal Manure: non-human animal excretions and was te, including, but not limited to, solids and urine from cows, cattle, or swine.

3.8 Biosolids: organic material resulting from the tre atment of sewage sludge or

wastewater.

3.9 Community Composting: composting conducted by a re sidential neighborhood association using feedstock generated within the re sidential neighborhood to produce compost for the neighborhood’s use.

3.10 Compost: a product resulting from the biological de composition of organic

material.

3.11 Compostable Material: organic material that is cap able of undergoing the composting process.

3.12 Composting: a process in which solid organic waste materials are decomposed in the presence of oxygen through the action of bac teria and other microorganisms.

3.13 Composting Facility: a facility that is required t o obtain a District permit for composting operations in accordance with Rule 2010 (Permits Required) which are not specifically exempt pursuant to Rule 2020 ( Exemptions) or a Compostable Materials Handling Facility Permit in a ccordance with Title 14, California Code of Regulations, Division 7, Chapter 3.1, Article 2, Section

17857.1.

3.14 Composting Operation: composting, screening, chippi ng and grinding, and storage activities related to the production of com post from organic materials or chipped and ground organic materials at a compostin g facility.SJVUAPCD 4566 - 3 08/18/11

3.15 Contiguous or Adjacent Property: a property consis ting of two or more parcels of land with a common point or boundary, or separat ed solely by a public roadway or other public right-of-way.

3.16 Curing Phase: the phase of the composting process that begins immediately after the active phase and ends when any of the fol lowing conditions is met:

3.16.1 The organic material has been composted for a perio d of 40 consecutive days after the active phase;

3.16.2 The organic material respiration rate is no more th an 10 milligrams of oxygen consumed per gram of volatile solids per day as measured by direct respirometry using the TMECC Method 05-08-A – SOUR: Specific Oxygen Uptake Rate (April 7, 2002);

3.16.3 The organic material emits no more than four (4) mg CO 2 -C per gram of organic material per day, as measured using the TMECC Method 05-08-B – Carbon Dioxide Evolution Rate (April 7, 2 002); or

3.16.4 The organic material has a Solvita® Maturity Index of seven (7) or greater, as measured using the TMECC Method 05-08-E – Solvita® Maturity Test (April 7, 2002).

3.17 Day: a continuous twenty-four hour period beginning at 12:00 A.M.

3.18 District: the San Joaquin Valley Unified Air Pollut ion Control District including Fresno, Kings, Madera, Merced, San Joaquin, Stanisl aus, and Tulare Counties, and the San Joaquin Valley Air Basin portion of Ker n County.

3.19 Facility: a portion of real property that is on one or more contiguous or adjacent properties all of which are under common ownership or control.

3.20 Finished Compost: a humus-like material that has co mpleted both the active phase and curing phase of composting.

3.21 Finished Compost Cover: pre-screened finished compo st, or a mixture of screened finished compost or overs, that is applied to a windrow or pile as a

cover to reduce VOC emissions.

3.22 Food Material: food scraps collected from the food processing industry, food service industry, grocery stores, or residential fo od scrap collection. Food material also includes food material that is chippe d or ground.SJVUAPCD 4566 - 4 08/18/11

3.23 Green Material: vegetative material generated from gardening, agriculture, or landscaping activities including, but not limited t o, a mixture of grass clippings, leaves, tree and shrub trimmings, and plant remains

.

3.24 Household Composting: composting conducted by a hou sehold, including but not limited to, single family residences, duplexes or apartment buildings, using organic materials that are generated on site to pro duce compost that will be used

on site.

3.25 Independent Watering System: a system connected to a water source that uniformly applies water by means of nozzles operate d under pressure and may include, but is not limited to, portable sprinkler system, non-portable sprinkler system, or water truck.

3.26 Integrated Watering System: a system connected to a water source that uniformly applies water by means of nozzles operate d under pressure which are installed in front of or simultaneously with the me chanical turner blades.

3.27 Mitigation Measure: an activity, work practice, or technology that reduces VOC air pollutants emitted by or associated with the pr ocessing of organic material.

3.28 Nursery Composting: composting conducted at a plant nursery using materials generated on site to produce compost for on-site us e.

3.29 Operator: a person who owns, leases, supervises, or operates a composting facility that conducts a composting operation on si te.

3.30 Organic Material: food material, green material, or a mixture thereof, and may

include wood material and a total of less than 100 wet tons per year of biosolids, animal manure, or poultry litter.

3.31 Overs: the oversized woody materials that have been through pathogen reduction, do not decompose in a typical composting cycle, and are screened out of finished product at the end of composting.

3.32 Pathogen Reduction: a process conducted entirely or in part to reduce the number of disease-causing organisms present in orga nic material in accordance with Title 14 Chapter 3.1 Division 7 Section 17868 of the California Code of Regulations.

3.33 Peak: the highest point along the ridge of the wind row.

3.34 Pile: compostable material that is heaped together.SJVUAPCD 4566 - 5 08/18/11

3.35 Poultry Litter: poultry excretions and waste, inclu ding, but not limited to, dried solids and urine from chickens, turkeys, geese, or ducks.

3.36 Process: the conversion of the organic material int o a beneficial material or use.

3.37 Rain Event: for the purpose of this rule, precipit ation at a composting facility.

3.38 Recreational Facilities Composting: composting cond ucted at parks, arboretums and other recreational facilities using feedstock g enerated on site to produce compost for on-site use.

3.39 Ridge: the narrow upper section of a windrow with sloping sides.

3.40 Solvita® Maturity Index: an index that defines the stage where compost exhibits resistance to further decomposition, in accordance with the TMECC Method 05- 08-E – Solvita® Maturity Test (April 7, 2002).

3.41 Stockpile: organic material, which may or may not b e chipped or ground, that is temporarily stored in a pile for further processing

.

3.42 Test Methods for the Examination of Composting and Compost (TMECC): test methods for the examination of composting and compo st by the US Composting

Council Research and Education Foundation.

3.43 Throughput: the weight of organic material to be pr ocessed, as it is received or generated at a facility, prior to dewatering or tre atment at the receiving location. Throughput includes the weight of moisture present in the organic material at the time it is received at the facility.

3.44 US Environmental Protection Agency (EPA): the Unite d States Environmental Protection Agency or any person authorized to act o n its behalf.

3.45 Vertical Midpoint: the point that divides the peak of the windrow from the

bottom of the windrow.

3.46 Volatile Organic Compounds (VOC): as defined in Rul e 1020 (Definitions).

3.47 Windrow: organic material that is placed in an elon gated pile for composting.

3.48 Wood material: untreated lumber and the woody-mater ial portion of mixeddemolition wastes and mixed-construction wastes. W ood material also includes overs, and the woody material portion of trees. Wo od material or wood material chips to which other organic material has been added are not

considered to be wood material.SJVUAPCD 4566 - 6 08/18/11

3.49 Year: a continuous, 12-month period beginning on Ja nuary 1 and ending on

December 31.

4.0 Exemptions

4.1 Stockpiling of Organic Material

4.1.1 Facilities that stockpile organic material on site and are not considered to be a composting facility are exempt from all req uirements of this

rule.

4.1.2 Stockpiles used for composting operations that are subject to Rule 4565 (Biosolids, Animal Manure, and Poultry Litter Opera tions) and have organic material and biosolids, animal manure, or p oultry litter on site are exempt from all stockpile requirements of this rule for the materials associated with those operations. Stockpiles desti ned for composting operations not subject to Rule 4565 are not exempte d under this

section.

4.1.3 The following materials are exempt from all require ments of this rule, provided that the material is not mixed with other types of organic materials and operators maintain records, as requir ed by Section 6.3.1. For the purpose of this exemption, the throughput r eceived or generated from any of the materials below shall not be added to or subtracted from the total throughput for composting operations.

4.1.3.1 Wood material, including wood material that is sepa rated

from organic material prior to complying with the s tockpile requirements in Section 5.1;

4.1.3.2 Finished Compost;

4.1.3.3 Overs; and

4.1.3.4 Organic material that is specifically stockpiled on site for operations other than composting, provided that an operator is not intentionally conducting pathogen reduction on the organic material at the facility. Other operations include, but are not limited to, animal feed or nutritional products.

4.2 Composting Operations

4.2.1 The following composting operations are exempt from all requirements

of this rule:SJVUAPCD 4566 - 7 08/18/11 4.2.1.1 Composting operations that are subject to Rule 4565

(Biosolids, Animal Manure, and Poultry Litter Opera tions) are exempt from all requirements of this rule. Fac ilities with multiple types of composting operations are su bject to the applicable requirements of Rule 4566 only for t hose composting operations not subject to Rule 4565 requirements;

4.2.1.2 Agricultural composting;

4.2.1.3 Community composting;

4.2.1.4 Household composting;

4.2.1.5 Nursery composting; and

4.2.1.6 Recreational facilities composting.

4.3 The following facilities are exempt from all requir ements of this rule:

4.3.1 Facilities subject to Rule 4204 (Cotton Gins) and c otton ginning facilities that are specifically exempt from Rule 4 204;

4.3.2 Agricultural operations subject to Rule 4550 (Conse rvation Management Practices) and agricultural operations t hat are specifically exempt from Rule 4550; and

4.3.3 Facilities subject to Rule 4570 (Confined Animal Fa cilities) and facilities that are specifically exempt from Rule 4 570.

5.0 Requirements

5.1 Stockpile Requirements

5.1.1 An operator of a composting operation with a total throughput of less than 100,000 wet tons per year of organic material shall comply with one of the following within ten (10) days of receip t of the organic material at the facility:

5.1.1.1 Remove the organic material from the facility;

5.1.1.2 Start the active phase of composting;SJVUAPCD 4566 - 8 08/18/11 5.1.1.3 Cover the organic material with a waterproof cover that

have at least a six-feet (6’) overlap of adjacent s heets and be securely anchored; or

5.1.1.4 Implement an APCO approved alternative mitigation

measure, not listed above.

5.1.2 An operator of a composting operation with a total annual throughput of greater than or equal to 100,000 wet tons per ye ar of organic material shall comply with one of the following wit hin three (3) days of receipt of the organic material at the facility:

5.1.2.1 Remove the organic material from the facility;

5.1.2.2 Start the active phase of composting;

5.1.2.3 Cover the organic material with a waterproof cover that

have at least a six-feet (6’) overlap of adjacent s heets and be securely anchored; or

5.1.2.4 Implement an APCO approved alternative mitigation

measure, not listed above.

5.2 Composting Requirements

5.2.1 An operator of a composting operation with a total throughput of less than 200,000 wet tons per year of organic material shall comply with Section 5.2.1.1 or Section 5.2.1.2 during the activ e phase of composting.

5.2.1.1 For windrow composting only, implement at least thr ee

turns during the active phase and one of the mitiga tion measures for the Watering Systems in Table 1.

5.2.1.2 Implement an APCO and EPA approved alternative

mitigation measure that demonstrates at least a 19% reduction, by weight, in VOC emissions.

5.2.2 An operator of a composting operation with a total throughput of greater than or equal to 200,000 wet tons per year and less than 750,000 wet tons per year of organic material shall comply with Section 5.2.2.1 or Section 5.2.2.2 during the activ e phase of composting.SJVUAPCD 4566 - 9 08/18/11 5.2.2.1 For windrow composting only, implement all of the

following:

5.2.2.1.1 At least three turns during the active phase;

5.2.2.1.2 One of the mitigation measures for the

Watering Systems in Table 1; and

5.2.2.1.3 The Finished Compost Cover mitigation

measure.

5.2.2.2 Implement an APCO and EPA approved alternative

mitigation measure that demonstrates at least 60% reduction, by weight, in VOC emissions.

Table 1 – Composting Mitigation Measures Watering Systems 1 Independent watering system

a. Apply water to the surface area of each windrow pri or to turning. Test each windrow within three hours before turning for adequate water by taking a sample of the compostable material from between the vertical midpoint and the peak of the w indrow, at least three inches below the outer surface. For the ball test, form the material into a ball using hand pressure. There should be at least enough water to form a ball when compressed b y hand, but the ball may break when tapped.

b. If the ball crumbles during the hand pressure test, apply additional water to the windrow prior to turning until the material passes the ball test, as described in Section 1.a. 2 Integrated watering system

a. For windrows that will be turned on the same day an d will require the same water volume, mechanically turn the first windrow while operating the integrated watering system. Within three hours after turning the first windrow, take a sampl e of the compostable material from between the vertical midpoint and the peak of the windrow, at l east three inches below the outer surface. For the ball test, form the material into a ball using hand pressure. There should be at least enough water form a ball when compressed by hand, but the ball may break when tapped.

b. If the ball crumbles during the hand pressure test, apply additional water and mechanically turn the same windrow, then retest until the material passes the ball test. Subsequent windrows shall not be turned until the initial windrow passes the ball te st. Utilize the established water volume for the remaining windrows to be turned with the same water volume on the same day. Repeat the

methods in Section 2.a. for windrows that will be t urned with a different water application rate.

• For either the independent or integrated watering s ystems, if a rain event occurs prior to turning the windrow, take a sample of the compostable material from between the vertical midpoint and the peak of the windrow within three hours before turning and a t least three inches below the outer surface. Form the material into a ball using hand pressure. Ther e should be at least enough water to form a ball wh en compressed by hand, but the ball may break when tap ped.

• If the ball crumbles during the hand pressure test, apply additional water to the windrow prior to tur ning until the material passes the ball test. Continues on the next pageSJVUAPCD 4566 - 10 08/18/11 Table 1 – Composting Mitigation Measures (continued) Finished Compost Cover An operator shall cover the surface area of at leas t the top third of each windrow with finished compo st cover so that there is at least six inches in heigh t of finished compost cover as measured at the peak of each windrow. An operator shall cover the surface area of each windrow as described within three hours of

initial windrow formation and within three hours af ter each turning of the windrow for at least three turns of each windrow. For any windrows that are mechani cally turned after 2:00 pm, an exception to the thr ee hour limit can be made, which allows the operator to cover the surface area of at least the top thir d of each windrow with finished compost cover by 12:00 p m the following day.

5.2.3 An operator of a composting operation with a total throughput of greater than or equal to 750,000 wet tons per year of organic material shall implement an APCO and EPA approved mitigation measure that demonstrates at least 80% reduction, by weight, in VOC emissions for organic material during the active phase.

6.0 Administrative Requirements

6.1 Facility Emission Mitigation Plan

An operator shall submit a Facility Emission Mitiga tion Plan (FEMP) along with an Authority-to-Construct application, in acco rdance with Rule 2010 (Permits Required), to incorporate the approved mit igation measures from the facility’s FEMP as applicable permit conditions. T he FEMP shall contain the following information:

6.1.1 The name, business address, and phone number of an operator(s) responsible for the preparation and the implementat ion of the mitigation measures listed in the mitigation plan;

6.1.2 The signature of an operator(s) attesting to the ac curacy of the information provided and adherence to implementing the activities specified in the mitigation plan at all times and t he date that the application was signed;

6.1.3 A list of the mitigation measures chosen from the a pplicable portions of Section 5.0 to comply with Rule 4566 requirements. In lieu of implementing the listed mitigation measures in Sect ion 5.0, an operator may demonstrate that reductions from composting ope rations subject to this rule are equal to that which the compliance wi th those sections would have achieved; and

6.1.4 The total throughput, in wet tons per year, of orga nic material stockpiled and composted.SJVUAPCD 4566 - 11 08/18/11

6.2 Alternative Mitigation Measures Compliance Plan

6.2.1 A compliance plan for alternative mitigation measur es shall contain the following elements:

6.2.1.1 The name(s), address(es) and telephone number(s) of

person(s) responsible for the preparation, submitta l, and implementation of the compliance plan;

6.2.1.2 The name, address, and telephone number(s) of the f acility for which the compliance plan is being prepared;

6.2.1.3 A description and process diagram of the operation;

6.2.1.4 A complete description of the control method(s) tha t will be

used in place of a listed mitigation method;

6.2.1.5 All data, calculations methodology, calculations, r ecords,

manufacturer specifications, and all other informat ion necessary to determine that proposed mitigation mea sure will achieve the required emission reductions;

6.2.1.6 Methodology and calculations establishing the daily and

annual VOC emissions or projected VOC emissions. A n operator may use the District’s established baselin e emission factors or establish operation-specific baseline em ission

factors. The baseline emission factors used shall b e part of the compliance plan submittal. An operator shall demonstrate that the operation-specific baseline em ission factors are representative of uncontrolled operatio ns; and

6.2.1.7 An identification of all equipment needing District permits

to construct and operate.

6.2.2 In evaluating the compliance plan, the APCO may req uire tests and sampling, as necessary, to determine the adequacy o f the compliance plan and the likelihood of compliance with the emis sion reduction requirements.

6.2.3 The APCO may approve operation-specific baseline em issions factors provided the baseline emissions factors are substan tiated with source test data that is approved by the APCO and the mate rial and mixtures of material is representative of normal operations.SJVUAPCD 4566 - 12 08/18/11 6.2.4 The APCO shall provide interim approval of the comp liance plan provided an operator submits all of the information required under Section 6.2.1 and the APCO verifies that, by design , the compliance plan will reduce emissions similar to or greater th an listed mitigation measures and requirements.

6.2.5 Following the interim approval of the compliance pl an, the APCO shall approve the compliance plan provided an operator su bmits, no later than 180 days after the effective date of complianc e, a certification of the compliance report that includes all source test data, and the APCO verifies that the emissions from the mitigation mea sure and requirements meets the emission reduction limits.

6.2.6 The APCO may impose conditions necessary to ensure that the operation complies with the compliance plan and all applicable District

rules.

6.2.7 The APCO may require an operator to maintain record s consistent with the compliance plan necessary to demonstrate compli ance with the compliance plan.

6.2.8 Compliance with the provision of the approved propo sal does not exempt an operator from complying with the requirem ents of the California Health and Safety Code or other District rules.

6.3 Recordkeeping Requirements

6.3.1 Records for Exempt Organic Materials

An operator claiming exemption pursuant to Section 4.1.3 shall record all of the following information on a quarterly bas is:

6.3.1.1 The amount (in wet tons) and type of organic materi al

received on site; and

6.3.1.2 Other information necessary to determine compliance with

the requirements.

6.3.2 Throughput Records

An operator of a composting facility subject to thi s rule shall maintain an operations log. In the operations log, an opera tor shall record all of the following information on a daily basis:SJVUAPCD 4566 - 13 08/18/11 6.3.2.1 The date the organic material arrives on site;

6.3.2.2 The type of organic material received on site; and

6.3.2.3 The weight (in wet tons) of each type of organic ma terial

received on site.

6.3.3 Stockpile Operations

An operator of a composting facility subject to the stockpile requirements shall maintain an operations log. In the operations log, an operator shall record all of the following infor mation on a daily

basis:

6.3.3.1 The date of which each stockpile was initially form ed;

6.3.3.2 The date and action taken on each stockpile to sati sfy the

stockpile requirements; and

6.3.3.3 Other information necessary to determine compliance with

the requirements.

6.3.4 Composting Operations

An operator of a composting facility subject to the composting requirements shall maintain an operations log. In the operations log, an operator shall comply with all of the following applicable recordkeeping requirements.

6.3.4.1 Watering Systems

6.3.4.1.1 Record the date and time the organic material

from the windrow was tested for compliance.

6.3.4.1.2 Indicate whether the windrow passes the ball

test and, if applicable, all corrective actions

taken.

6.3.4.1.3 Record the date and time the windrow was

turned.

6.3.4.1.4 Record other information necessary to

determine compliance with the requirements.SJVUAPCD 4566 - 14 08/18/11 6.3.4.2 Finished Compost Cover

6.3.4.2.1 Record the date and time each windrow was

initially formed for the active phase and the time when finished compost cover, which

satisfied the minimum six inches finished compost cover requirement, was applied to

each windrow.

6.3.4.2.2 Record the date and time each windrow was

turned during the active phase and the time when finished compost cover, which satisfied the minimum six inches finished compost cover requirement, was applied to each windrow.

6.3.4.2.3 Record other information necessary to

determine compliance with the requirements.

6.3.4.3 Alternative Mitigation Measure Records

For operators using an approved alternative mitigat ion measure, an operator shall keep records needed to demonstrate compliance with the specific alternativ e mitigation measure each day the alternative mitigat ion measure is performed.

6.3.5 Records Retention

An operator shall retain all applicable records, as specified in this Recordkeeping Requirements section, on site for a p eriod of five (5) years and the records shall be made available to th e APCO upon

request.

6.4 Test Methods

6.4.1 Compost Maturity/Stability

An operator shall use one of the following test met hods, as provided by the Test Methods for the Examination of Composting and Compost (TMECC), to test compost maturity and stability:

6.4.1.1 TMECC Method 05-08-A – Specific Oxygen Uptake Rate

(April 7, 2002);SJVUAPCD 4566 - 15 08/18/11 6.4.1.2 TMECC Method 05-08-B – Carbon Dioxide Evolution Rat e

(April 7, 2002); or

6.4.1.3 TMECC Method 05-08-E – Solvita® Maturity Test (Apri l 7,

2002).

6.4.2 Alternative Test Methods

An operator may use an alternative test method to s atisfy rule requirements for which a written approval from the APCO and EPA

have been obtained.

6.4.3 Multiple Test Methods

When more than one test method or set of test metho ds is specified for testing, a violation of a requirement of this rule established by one of the specified test methods or set of test methods s hall constitute a

violation of this rule.

7.0 Compliance Schedule

7.1 Operators of a composting facility subject to the c omposting operation requirements of this rule shall submit a complete F acility Emission Mitigation Plan and Authority-to-Construct application that co mplies with all applicable requirements of this rule by the following dates:

Table 2: Compliance Schedule for Facility Emission Mitigation Plan (FEMP) and Authority-to-Construct (ATC) Application Composting Requirements Compliance Schedule Watering system requirements or an APCO approved alternative mitigation measure that demonstrates at least 19% reduction, by weight, in VOC emissions. February 18, 2012

Finished compost cover requirements, along with the watering system requirements. In lieu of complying with both of the finished compost cover and watering system requirements, implement an APCO approved alternative mitigation measure that demonstrates at least 60% reduction, by weight, in VOC emissions. August 18, 2015

APCO approved mitigation measure that demonstrates at least 80% reduction, by weight, in VOC emissions for organic material during the active phase. August 18, 2015SJVUAPCD 4566 - 16 08/18/11

7.2 Stockpile Requirements

On and after August 18, 2012, operators of a compos ting operation subject to the stockpile requirements shall be in full complia nce with all stockpile requirements.

7.3 Composting Requirements

7.3.1 On and after August 18, 2012, an operator of a comp osting operation with a total throughput of less than 200,000 wet to ns per year of organic material shall be in full compliance with t he applicable Watering Systems requirements or implement an APCO approved alternative mitigation measure that demonstrates at least 19% reduction, by weight, in VOC emissions.

7.3.2 An operator of a composting operation with a total throughput of greater than or equal to 200,000 wet tons per year and less than 750,000 wet tons per year of organic material shall be in compliance with all of the following schedule and composting r equirements:

7.3.2.1 On and after August 18, 2012, comply with the appli cable

Watering Systems requirements or implement an APCO approved alternative mitigation measure that demons trates at least 19% reduction, by weight, in VOC emissions.

7.3.2.2 On and after August 18, 2016, comply with the Finis hed

Compost Cover requirements in addition to the Water ing System requirements. In lieu of complying with bot h of the finished compost cover and watering system requirem ents, implement an APCO approved alternative mitigation measure that demonstrates at least 60% reduction, b y weight, in VOC emissions.

7.3.3 On and after August 18, 2016, an operator of a comp osting operation with a total throughput of greater than or equal to 750,000 wet tons per year of organic material shall be in full complianc e with an APCO approved mitigation measure that demonstrates at le ast 80% reduction, by weight, in VOC emissions for organic material du ring the active phase.