RULE 4624 TRANSFER OF ORGANIC LIQUI D (Adopted April 11, 1991; Amended September 19, 1991; Ame nded May 21, 1992; Ame nded December 17, 1992; Amended December 20, 2007)

1.0 Purpose

The purpose of this rule is to limit VOC emi ssions from the transfer of organic liquids.

2.0 Applicability

This rule shall apply to organic liquid tr ansfer facilities as defined in this rule.

3.0 Definitions

3.1 APCO: as defined in Rule 1020 (Definitions).

3.2 API: American Petroleum Institute.

3.3 ARB: The California Air Resource Board.

3.4 ASTM: American Society for Testing and Materials.

3.5 Background: the ambient concentrati on of organic compounds determined at least two (2) meters upwind from any valv e or flange to be inspected and which is uninfluenced by any specific emission permit unit.

3.6 Bottom Loading: a type of organic liquid loading operation where the discharge opening into the container is complete ly submerged below the level of the organic liquid in the container.

3.7 CFR: Code of Federal Regulations.

3.8 Class 1 Organic Liquid Transfer F acility: any location transferring 20,000 gallons or more on any one day of organic liquids with a TVP of 1.5 psia or greater to or from tank trucks, trailers, or railroad tank cars.

3.9 Class 2 Organic Liquid Transfer F acility: any location transferring 4,000 gallons or more but less than 20,000 gall ons on any one day of organic liquids with a TVP of 1.5 psia or greater to or from tank trucks, trailers, or railroad

tank cars.

3.10 Closed VOC Emission Control Syst em: an APCO-approved VOC emission control system that is not open to the at mosphere and that is composed of hardpiping, ductwork connections , and, if necessary, flow inducing devices that

SJVUAPCD 4624- 1 12/20/2007transport collected gases or vapors from a piece or pieces of equipment to a vapor return system or condensation syst em that connects to a process stream, a gas processing plant, a gas pipeline recove ry and distribution system (sales gas system), a fuel gas system , or an injection well fo r disposal of vapors as approved by the California De partment of Resources, Di vision of Oil, Gas, and
Geothermal Resources.

3.11 Container: any st ationary tank, reservoir, or ve ssel in which any organic liquid is placed, held, or stored.

3.12 EPA: United States Envi ronmental Protection Agency.

3.13 Excess Organic Liquid Drai nage: more than ten (10) milliliters liquid drainage. Such liquid drainage for di sconnect operations shall be determined by computing the average drainage from three consecu tive disconnects at any one permit unit.

3.14 Gasoline: any petroleu m distillate, petroleum distilla te/alcohol blend or alcohol having a Reid vapor pressure of four (4) pounds per square inch absolute or greater, which is used as a motor vehicle fuel, or any fuel wh ich is commonly or commercially known or sold as gasoline.

3.15 Gasoline Bulk Plant: any loading f acility and associated unloading facilities, storage tanks and vapor recovery system(s ) used to load less than 20,000 gallons in any one (1) day of gasoline to deliver y vessels (i.e., tank trucks or trailers).

3.16 IBP: Initial Boiling Point.

3.17 Leak: the dripping of VOC -containing liquid at a rate of more than three (3) drops per minute; or

3.17.1 For organic liquids ot her than gasoline, the det ection of any gaseous or vapor emissions with a concentra tion of VOC greater than 1,000 ppmv above a background as methane when measured in acco rdance with the
test method in Section 6.3. 7 shall constitute a leak

3.17.2 For gasoline, a concentration of VOC greater than 10,000 ppmv, as methane, above background when meas ured in accordance with the test
method in Section 6.3.7 shall constitute a leak.

3.17.3 Any liquid or gas coming from a component undergoing repair or replacement, or during sa mpling of process fluid from equipment into a

container is not considered a leak provided such activities are accomplished as expeditiously as possi ble and with minimal spillage of material and VOC emissions to the atmosphere.

SJVUAPCD 4624- 2 12/20/20073.18 Location: a ny single site at a building, stru cture, facility, or installation.

3.19 Normal Business Hours: Monday through Friday, 8:00 am to 5:00 pm.

3.20 Organic Liquid: any li quid which contains VOCs and has a TVP of 1.5 psia or greater at the storage container’s maximu m organic liquid storage temperature. Clean produced water, as defined by Rule 1020, and other type s of liquids that contain no more than 35 millig rams of VOC per liter, sha ll not be considered to be an organic liquid.

3.21 Organic Liquid Loading Op eration: the transfer of organic liquid to a tank truck, trailer, or railroad car.

3.22 Organic Liquid Transfer Facility: any aggregate or combin ation of transfer racks and vapor control equipment at a location, including, but not limited to, the stationary organic liquid pump, and the hose end connector, and the discharge of the vapor control device(s).

3.23 Portable Hydrocarbon Detection Instru ment: a hand-held hydrocarbon analyzer that meets the criteria specified in EPA Method 21, 40 CFR Part 60. The
instrument shall be calibrated with methane.

3.24 Psia: Pounds per square inch, absolute.

3.25 Pump: a device used to transport flui ds by the addition of energy, and includes all associated components used for c onnecting or sealing purposes. The phrase "all associated components used for connecting and s ealing purposes" means the first VOC leak points (first components) on the body of the pump. For example,
a valve that is connected to a threaded hole on body of the pump, the first VOC leak point is the threaded connection on the body side of the pump, but the valve itself is not a "first VOC leak point". Si milarly, a pump shaft seal is considered as a first “VOC leak point”.

3.26 Transfer Rack: a loading rack as defined in Rule 1020 (Definitions) or an unloading rack as defined in Rule 2020 (Exemptions). This rule applies only to racks with stationary pumps.

3.27 TVP: True Vapor Pressure.

3.28 VOC: as defined in Rule 1020 (Definitions).

SJVUAPCD 4624- 3 12/20/20074.0 Exemptions

4.1 The requirements of Secti on 5.0 of this rule shall not apply to organic liquid
transfer facilities which tran sfer less than 4,000 gallons of organic liquids in any one day. The operator shall meet the a pplicable recordkeeping requirements of
Section 6.1.1.

4.2 The requirements of this rule shall not apply to transfer opera tions subject to the requirements of Rule 4621 (Gasoline Transfer into Stationary Storage Containers, Gasoline Delivery Vessels and Gasoline Bulk Plants ) or to transfer operations that are subject to Rule 4622 (Gasoline Tran sfer into Motor Vehicle Fuel Tanks).

4.3 Except for Section 6.1, the requirements of this ru le shall not apply to the transfer of organic liquids with TVP less than 1.5 psia at the storage container’s maximum organic liquid storage temperature.

4.4 The requirements of Sec tion 5.9 shall not apply to equipment or components subject to:

4.4.1 Rule 4409 (Component s at Light Crude Oil Production Facilities, Natural Gas Production Facilities, and Natural Gas Processing Facilities);

4.4.2 Rule 4455 (Components at Petroleum Refineries, Gas Liquids Processing Facilities, and Chemical Plants); or

4.4.3 Rule 4623 (Storage of Organic Liquids).

4.5 Except for the one-time record submi ssion requirement of Section 6.1.5 for vacuum truck operators, the re quirements of this rule sh all not apply to transfer operations involving vacuum trucks.

5.0 Requirements

5.1 For a Class 1 organic liquid transfer facility, the emission of VOC from the transfer operation shall not exceed 0. 08 pounds per 1,000 gall ons of organic liquid transferred and use one of the following systems:

5.1.1 An organic liquid loading operation shall be bottom loaded.

5.1.2 The VOC from the transfer operation shall be routed to:

5.1.2.1 A vapor collection and control system;

SJVUAPCD 4624- 4 12/20/20075.1.2.2 A fixed roof c ontainer that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids);

5.1.2.3 A floating roof container that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

5.1.2.4 A pressure vessel equippe d with an APCO-approved vapor recovery system that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

5.1.2.5 A closed VOC emission control system.

5.2 A Class 2 organic liquid transfer f acility shall prevent the release to the atmosphere of at least 95 percent by weight of the VOC displaced during organic liquid transfers and use one of the following systems:

5.2.1 An organic liquid loading opera tion shall be bottom loaded, equipped with a vapor collection and control system and the vapors from loading the tank truck, trailer, or railroad ta nk car shall be routed to the vapor collection and control system; or

5.2.2 The VOC from the transfer operation shall be routed to:

5.2.2.1 A vapor collection and control system; or

5.2.2.2 A fixed roof c ontainer that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

5.2.2.3 A floating roof container that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

5.2.2.4 A pressure vessel equippe d with an APCO-approved vapor recovery system that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

5.2.2.5 A closed VOC emission control system.

5.3 A transfer operation utilizing a closed VOC emission control system or utilizing
a container that meets the control re quirements of Rule 4623 (Storage of Organic Liquids) to meet the emission c ontrol requirements of this rule shall demonstrate compliance with Sections 5. 1 and 5.2 by complying with the leak inspection requirement s of Section 5.9.

5.4 The vapor collection and control system shall operate such th at the pressure in the delivery tank being loaded does not ex ceed 18 inches water column pressure

SJVUAPCD 4624- 5 12/20/2007and six (6) inches water co lumn vacuum. This section shall not apply to the transfer of liquefied petroleum gas.

5.5 All delivery tanks which previously cont ained organic liquids with a TVP of 1.5 psia or greater at the storage cont ainer’s maximum organic liquid storage temperature shall be filled only at transfer facilities satisfying S ections 5.1, 5.2, or 5.4, as applicable.

5.6 The transfer rack and vapor collection equipment shall be designed, installed, maintained and operated such that th ere are no leaks and no excess organic liquid drainage at disconnections.

5.7 The construction of any new top loading facility or the reconstruction, as defined in 40 CFR 60.15, or the expansion of any existing top loading facility with top loading equipment shall not be allowed.

5.8 Notwithstanding any other provision of this rule, organic liquid transfer facilities exclusively handling liquefied petroleum gas need not comply with the bottom loading provisions of Secti ons 5.1, 5.2 or 5.7, pr ovided the operator complies with the emission limit of Section 5.1, 5. 2 and the provisions of Section 5.6.

5.9 Leak Inspection Requirements

5.9.1 The operator of an organic liquid tr ansfer facility sha ll inspect the vapor collection system, the vapor disposal system, and each transfer rack handling organic liquids for leaks dur ing transfer at least once every calendar quarter using the test met hod prescribed in Section 6.3.8.

5.9.2 A floating roof contai ner that meets the applicable control requirements of Section 5.0 of Rule 4623 (Stora ge of Organic Liquids) shall be considered not leaking for th e purposes of this section.

5.9.3. All equipment that are found leaki ng shall be repaired or replaced within 72 hours. If the leaking component cannot be repaired or replaced within 72 hours, the component shall be taken out of service until such time the component is repaired or re placed. The repaired or replacement equipment shall be reinspected th e first time the equipment is in operation after the repair or replacement.

5.9.4 An operator may apply for a writte n approval from the APCO to change the inspection frequency from quart erly to annually provided no leaks were found during the inspections re quired under provisions of Sections

5.9.1 and 5.9.2 dur ing five consecutive quarterly inspections. Upon identification of any leak during an annual inspection the frequency

SJVUAPCD 4624- 6 12/20/2007would revert back to qua rterly and the operator shall contact the APCO in writing within 14 days.

6.0 Administrative Requirements

6.1 Recordkeeping

6.1.1 An operator claiming exemption under Section 4.1 shall keep records of daily liquid throughput.

6.1.2 An operator claiming exemption unde r Section 4.3 of this rule shall maintain accurate daily records of liquid TVP.

6.1.2.1 Liquid TVP shall be dete rmined using Appendix A or the applicable test method in Section 6.3.

6.1.2.2 The TVP shall be determined whenever there is a change in the type of liquid be ing transferred.

6.1.2.3 An operator may use a material safety data sheet (MSDS) in place of TVP testing if the tran sferred organic liquid is not crude oil or a petroleum distillate.

6.1.3 An operator subject to any part of Secti on 5.0 shall keep records of daily liquid throughput and the results of any required leak inspections.

6.1.4 Records required under S ections 6.1.1, 6.1.2, 6.1. 3 shall be retained for a minimum of five years and shall be made readily available to the APCO, ARB, or EPA during norma l business hours and submitted upon request to the APCO, ARB, or EPA.

6.1.5 By July 1, 2008, ope rators of vacuum trucks claiming exemption under
Section 4.5 shall submit to the Dist rict records covering 12 consecutive months of operation. The records shall indicate all of the following:

6.1.5.1 The number of vac uum trucks in operation;

6.1.5.2 The capacity of each vac uum truck storage container;

6.1.5.3 The average monthl y throughput per vehicle;

6.1.5.4 The type of organi c liquid transferred; and

6.1.5.5 The VOC capture and control equipment utilized.

SJVUAPCD 4624- 7 12/20/20076.2 Compliance Testing

6.2.1 By July 20, 2009, th e operator of any Class 1 or Class 2 organic liquid transfer facility shall perform an in itial source test of the VOC emission control system in accordan ce with the method prescribed in Section 6.3.2 to determine compliance with Secti on 5.1 and 5.2, as applicable.

6.2.1.1 Facilities in existence prior to December 20, 2007 that have performed the test specified in Section 6.3.2 within the 60 month period preceding December 20, 2007 need not perform
an initial source test.

6.2.1.2 The source testi ng requirements of Secti on 6.2.1 shall not apply to any Class 1 or Class 2 or ganic liquid transfer facility equipped with a closed VOC control system.

6.2.1.3 The source testi ng requirements of Secti on 6.2.1 shall not apply to any Class 1 or Class 2 or ganic liquid transfer facility controlling VOC by routing vapors to:

6.2.1.3.1 A fixed roof contai ner that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

6.2.1.3.2 A floating roof container that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids); or

6.2.1.3.3 A pressure vessel e quipped with an APCO-approved
vapor recovery system that meets the control requirements specified in Rule 4623 (Storage of Organic Liquids).

6.2.2 The operator of any Class 1 or Class 2 organic liquid transfer facility shall perform the source test specifi ed in Section 6.3.2 once every 60 months, but no more than 30 days before or af ter initial source test anniversary date.

6.3 Test Methods

6.3.1 Analysis of hal ogenated exempt compounds shall be by ARB Method

432.

SJVUAPCD 4624- 8 12/20/20076.3.2 Compliance with Secti ons 5.1 and 5.2 shall be determined using 40 CFR
60.503 "Test Methods and Procedures " and EPA Methods 2A, 2B, 25A and 25B and ARB Method 422, or AR B Test Procedure TP-203.1.

6.3.3 The TVP of any organic liquid sh all be determined by measuring the Reid Vapor Pressure (RVP) using ASTM D 323 (Test Method for Vapor Pressure for Petroleum Products), and converting the RVP to TVP at the storage container’s maximum organic liquid storage temperature. The
conversion of RVP to TVP shall be done in accordance with the procedures in Appendix B. Appendix B is an excerpt fr om the oil and gas section of “ARB Technical Guid ance Document to the Criteria and Guidelines Regulation for AB 2588”, dated August 1989.

6.3.4 As an alternative to using ASTM D 323, the TVP of crude oil with an API gravity range of greater than 26 degrees up to 30 degrees may be determined by using othe r equivalent test me thods approved by APCO
and EPA.

6.3.5 The latest version of the Lawr ence Berkeley National Laboratory “Test Method for Vapor Pressure of R eactive Organic Compounds in Heavy Crude Oil Using Gas Chromatogra ph”, as approved by ARB and EPA,
shall be used to determine the TVP of crude oil with an API gravity of

26 degrees or less, or for any API gravity that is specified in this test
method.

6.3.6 An operator may use the informa tion in Appendix A to determine the TVP of the stored organic liqui d in a tank provided the storage temperature listed in Appendix A is not exceeded at any time.

6.3.7 The API gravity of crude oil or pe troleum distillate shall be determined using ASTM Method D 287 (Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)). Sampling for API gravity shall be performed in accordance with ASTM Method D 4057 (Standard Practices fo r Manual Sampling of Petroleum and Petroleum Products).

6.3.8 Compliance with fac ility leaks as defined in Section 3.0 shall be determined using a portable hydro carbon detection instrument in
accordance with EPA Method 21.

6.3.9 An alternative test method may be used if the alternative is approved in writing by the APCO and EPA.

SJVUAPCD 4624- 9 12/20/20076.4 Version of Test Methods

All ASTM test methods referenced in Section 6.0 are the most recently EPAapproved version that appears in the CFR as Materials Approved for Incorporation by Reference.

7.0 Compliance Schedule

7.1 Operators of transfer facility s ubject to this rule on or before December 20,
2007 shall be in full complia nce with all applicable rule requirements on and

after December 20, 2008 , unless otherwise specified in the rule.

7.2 The owner or operator of any transf er facility which is subject to the requirements of this rule and which was installed or constructed after December 20, 2007, shall be in full compliance with the requirements of this rule upon initial operation.

7.3 Any organic liquid transfer facility that is exempt pursuant to Section 4.1, 4.2, and 4.3 that becomes subject to the re quirements of this rule through loss of exemption shall not be operated until such time that it is in full compliance with the requirements of this rule.

SJVUAPCD 4624- 10 12/20/2007Appendix A

STORAGE TEMPERATURE VERSUS VAPOR PRESSURE
ORGANIC LIQUID Reference Properties Maximum Temp ° F
Not to Exceed Gravity

° API IBP

° F 1.5 (psia)

Middle Distillates

Kerosene 42.5 350 250
Diesel 36.4 372 290
Gas Oil 26.2 390 310
Stove Oil 23 421 340
Jet Fuels
JP-1 43.1 330 230
JP-3 54.7 110 25
JP-4 51.5 150 68
JP-5 39.6 355 260
JP-7 44-50 360 260
Fuel Oil
No. 1 42.5 350 250
No. 2 36.4 372 290
No. 3 26.2 390 310
No. 4 23 421 340
No. 5 19.9 560 465
Residual 19.27
--- --- No. 6 16.2 625
--- Asphalts 60-100 pen.
--- --- 550 120-150 pen.
--- --- 500 200-300 pen.
--- --- 420

IBP = Initial Boiling Point

SJVUAPCD 4624- 11 12/20/2007Appendix B

California Air Resources Board Technical Guidance
to the Criteria and Guide lines Regulation for AB 2588 (Partial Excerpt from pages 102, 103 and 104)

True Vapor Pressure (TVP)

RVP is the absolute pressure of volatile crude oil and nonviscous petroleum liquids. Numerically, the relationship between TVP, RVP and temperature can be expressed by the following equation:

TVP = (RVP) e [Co(IRTEMP - ITEMP)]

Where: C o = Constant dependent upon the value of RVP ITEMP = (1/559.69 o R) IRTEMP = (1/(T s + 459.69 o R))
T s = Temperature of the stored fluid in o F

The value of the constant term C o depends upon the given value of RVP.

Values of C o for different RVP numbers are tabulated in Table C-3. It should be noted, however, that an error was discovered in the API nomograph calculated values of TVP so
that the RVP was not equal to TVP at 100 o F as was expected given the general definition of RVP. Using linear regression techniques, correction factors (C F ) were developed and
should be added to the calcula ted values of TVP in order to obtain reasonable TVP numbers. The relationship between the three values is given as follows:

Corrected TVP = Calculated TVP + C F

The correction factor was found to be dependent upon RVP according to the following equations:

If RVP < 3,

C F = (0.04) x (RVP) + 0.1

If RVP > 3,

C F = e [(2.3452061 log (RVP)) - 4.132622]

SJVUAPCD 4624- 12 12/20/2007Appendix B (Continued)

Table C-3 VALUES OF C o FOR DIFFERENT RVP NUMBERS

RVP C o

0<RVP<2 -6622.5

2<RVP<3 -6439.2

RVP = 3 -6255.9

3<RVP<4 -6212.1

RVP = 4 -6169.2

4<RVP<5 -6177.9

RVP = 5 -6186.5

5<RVP<6 -6220.4

RVP = 6 -6254.3

6<RVP<7 -6182.1

RVP = 7 -6109.8

7<RVP<8 -6238.9

RVP = 8 -6367.9

8<RVP<9 -6477.5

RVP = 9 -6587.9

9<RVP<10 -6910.5

RVP = 10 -7234.0

10<RVP<15 -8178.0

RVP > 15 -9123.2

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