SAN JOAQUIN VALLEY UNIFIED AIR POLLUTION CONTROL DISTRICT

RULE 4624 - ORGANIC LIQUID LOADING
(Adopted April 11, 1991; Amended September 19, 1991; Amended May 21, 1992; Amended December 17, 1992)

1.0 Purpose
The purpose of this rule is to limit VOC emissions from organic liquid loading by limiting the vapor pressure and storage temperature.

2.0 Applicability
This rule shall apply to organic liquid loading facilities as defined in this rule which load 4000 gallons or more in any one day. This rule does not apply to gasoline bulk plants subject to the requirements of Rule 4621 (Gasoline Transfer into Stationary Storage Containers, Gasoline Delivery Vessels and Gasoline Bulk Plants).

3.0 Definitions

3.1 Background: the ambient concentration of organic compounds determined at least three (3) meters upwind from any valve or flange to be inspected and which is uninfluenced by any specific emission permit unit.

3.2 Class 1 Organic Liquid Loading Facility: any facility loading 20,000 gallons or more on any one (1) day of organic liquids with a TVP of 1.5 psia or greater into tank trucks, trailers, or railroad tank cars.

3.3 Class 2 Organic Liquid Loading Facility: any facility loading 4000 gallons or more but less than 20,000 gallons on any one (1) day of organic liquids with a TVP of 1.5 psia or greater into tank trucks, trailers, or railroad tank cars.

3.4 Excess Organic Liquid Drainage: more than ten (10) milliliters liquid drainage. Such liquid drainage for disconnect operations shall be determined by computing the average drainage from three consecutive disconnects at any one permit unit.

3.5 Gasoline Bulk Plant: any loading facility 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 delivery vessels (i.e., tank trucks or trailers).

3.6 Leak: the dripping of liquid organic compounds at a rate of more than three (3) drops per minute; or the detection of organic compounds in excess of 10,000 ppm above background of methane when measured at a distance of one (1) centimeter of the potential source with a portable hydrocarbon detection instrument calibrated with methane. (Note: A drip rate of less than three (3) drops per minute or detection of less than 10,000 ppm above background as methane is not a leak for the purposes of this rule.)

3.7 Organic Liquid: any liquid which contains VOCs and has a TVP greater than 1.5 psia at actual loading conditions.

3.8 Organic Liquid Loading Facility: any aggregate or combination of organic liquid loading and vapor control equipment from the connection at the inlet of the organic liquid pump to and including the hose end connector at the portable delivery tanks and the discharge of the vapor control device(s).

3.9 Portable Hydrocarbon Detection Instrument: a hydrocarbon analyzer which uses the flame ionization detection or thermal conductivity methods and satisfies Method 21, 40 CFR, Part 60. The instrument shall be equated to calibrating on methane and sampling at one (1) liter per minute.

4.0 Exemptions

4.1 The requirements of Section 5.0 of this rule shall not apply to organic liquid loading facilities which are used exclusively for loading of less than 4,000 gallons of organic liquids in any one day.

4.2 The requirements of this rule shall not apply to loading facilities subject to the requirements of Rule 4621 (Gasoline Transfer into Stationary Storage Containers, Gasoline Delivery Vessels and Gasoline Bulk Plants).

4.3 The requirements of this rule shall not apply to the loading of organic liquids with TVP at actual loading temperature of less than 1.5 psia.

4.4 For existing facilities, if an incineration device is added or modified for the sole purpose of complying with the requirements of this rule, such a device shall be exempt from the Best Available Control Technology and the Offset requirements of Rule 2201 (New and Modified Stationary Source Review Rule).

5.0 Requirements

5.1 Emission Limits
 

5.1.1 A Class 1 organic liquid loading facility shall be equipped with bottom loading and a vapor collection and control system such that the emission of VOCs does not exceed 0.08 pounds per 1000 gallons of organic liquid loaded.

5.1.2 A Class 2 organic liquid loading facility shall be equipped with a system to prevent the release to the atmosphere of at least 95 percent by weight of the VOCs displaced during the loading of tank trucks, trailers or rail road cars.

5.2 The vapor collection and control system shall operate such that the pressure in the delivery tank being loaded does not exceed 18 inches water column pressure and six (6) inches water column vacuum. This section shall not apply to the loading of liquified petroleum gas.

5.3 All delivery tanks which previously contained organic liquids with a TVP greater than 1.5 psia at loading conditions shall be filled only at loading facilities satisfying Sections 5.1 and 5.2.

5.4 The loading and vapor collection equipment shall be designed, installed, maintained and operated such that there are no leaks or no excess organic liquid drainage at disconnections.

5.5 The construction of any new top loading facility or the reconstruction, as defined in Rule 4001 (New Source Performance Standards), or the expansion of any existing top loading facility with top loading equipment shall not be allowed after the original effective date.

For the purpose of this section, the original effective date shall be as follows:
 

COUNTY     ORIGINAL EFFECTIVE DATE
Fresno 
Kern 
Kings, Madera, Merced, San Joaquin, Stanislaus, or Tulare 
    October 22, 1985
August 27, 1984
April 11, 1991

5.6 Notwithstanding any other provision of this rule, organic liquid loading facilities exclusively handling liquified petroleum gas need not comply with the bottom loading provisions of Sections 5.1 or 5.5, provided the operator complies with the emission limit of Section 5.1 and the provisions of Section 5.4.

6.0 Administrative Requirements

6.1 Recordkeeping
Facilities which are exempt by Section 4.0 of this rule shall maintain accurate daily records of liquid throughput, loading temperature and liquid TVP and make such records readily available to District staff upon request. All records shall be maintained at the facility or a minimum of two (2) years.

6.2 Test Methods:

6.2.1 Analysis of halogenated exempt compounds shall be by ARB Method 432.

6.2.2 Compliance with Sections 5.1 and 5.2 shall be determined, for initial compliance determination and when inspection reveals conditions indicative of performance less effective than that during previous compliance determination(s), using 40 CFR 60.503 "Test Methods and Procedures" and EPA Reference Methods 2A, 2B, 25A and 25B and ARB method 432, or ARB Method 2-4.

6.2.3 TVP shall be measured using Reid vapor pressure ASTM Method No. D-323-82 modified by maintaining the hot water bath at storage temperature except as provided in Section 6.3.4. Where storage temperature is above 100° F, TVP may be determined by Reid Vapor pressure at 100° F and ARB approved calculations. Organic liquids listed in Table 1 shall be deemed to be in compliance with the appropriate vapor pressure limits for the material, provided actual storage temperature does not exceed the corresponding maximum temperature listed.

6.2.4 TVP of crude oil with an API gravity less than 30° as determined by API 2547, may be determined by Headspace Gas Chromatography using the procedures from ARB Evaluation of a Method for Determining Vapor Pressures of Petroleum Mixtures by Headspace Gas Chromatography, October 1990.

7.0 Compliance Schedule

7.1 Existing loading facilities not previously subject to this rule shall comply with the following schedule:

7.1.1 By November 1, 1991, submit a complete application for Authority to Construct the equipment necessary to comply;

7.1.2 By May 1, 1992, submit evidence that a continuous program of on site construction is expected to be completed;

7.1.3 By November 1, 1992, complete on site construction; and

7.1.4 By May 1, 1993, demonstrate compliance with all provisions of this rule and request in writing that the APCO act on your request to be issued Permit to Operate a complying organic liquid loading facility.

7.2 The owner or operator of any loading facility which is subject to the requirements of this rule and which is installed or constructed after April 11, 1991, shall be in full compliance with the requirements of this rule upon initial operation.

Table 1

STORAGE TEMPERATURE VERSUS VAPOR PRESSURE
 
Organic Liquid

Reference Properties

Maximum Temp ° F

Not to Exceed
 

Gravity °API

IBP 

° F

0.5 (psia)

1.5 (psia)

Middle Distillates        
Kerosene

42.5

350

195

250

Diesel

36.4

372

230

290

Gas Oil

26.2

390

249

310

Stove Oil

23

421

275

340

Jet Fuels        
JP-1

43.1

330

165

230

JP-3

54.7

110

---

25

JP-4

51.5

150

20

68

JP-5

39.6

355

205

260

JP-7

44-50

360

205

260

Fuel Oil        
No. 1

42.5

350

195

250

No. 2

36.4

372

230

290

No. 3

26.2

390

249

310

No. 4

23

421

275

340

No. 5

19.9

560

380

465

Residual

19.27

---

405

---

No. 6

16.2

625

450

---

Asphalts        
60-100 pen.

---

---

490

550

120-150 pen.

---

---

450

500

200-300 pen.

---

---

360

420

IBP = Initial Boiling Point

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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