MOJAVE DESERT AIR QUALITY MANAGEMENT DISTRICT
RULE 462 - ORGANIC LIQUID LOADING
(Adopted: January 9, 1976)(Amended: May 7, 1976; readopted w/o changes: July 25, 1977; Amended: October 13, 1980; December 19, 1988; November 2, 1992; May 25, 1994)
(A) GENERAL DESCRIPTION
For the purposes of this rule only, the following terms are defined.
(a) A person shall not load organic liquids having a true vapor pressure of 77.5 millimeters of mercury (1.5 psia) or greater under actual loading conditions into any tank truck, trailer, or railroad tank car from any Class A facility unless the loading facility is equipped with a vapor recovery system . The vapor recovery system efficiency shall be verified pursuant to methods listed in Section (F) of this rule.
(b) Loading shall be accomplished in such a manner that the displaced vapor and air will be vented to a vapor recovery system. All connections and vapor lines are to be maintained in a Vapor Tight condition to prevent fugitive vapor leaks. Measures shall be taken to prevent fugitive liquid leaks from the loading device when it is not in use or to accomplish complete drainage before the loading device is disconnected, to prevent excess organic liquid drainage.
A person shall not load organic liquids having a true vapor pressure of 77.5 millimeters of mercury (1.5 psia) or greater under actual loading conditions into any tank truck, trailer, or railroad car from a Class B loading facility, unless:
(a) The facility is equipped with a vapor recovery system to prevent the release of fugitive vapor emissions during the filling of organic liquid delivery vehicles.
(b) The facility is equipped with a vapor recovery system to prevent the release of fugitive vapor emissions displaced during the filling of the facility's stationary storage containers with all connections and vapor lines to be maintained vapor tight; and
(c) The facility is equipped with a pressure-vacuum valve on the above ground stationary storage containers with a minimum pressure valve setting of 8 ounces per square inch, provided that such setting will not exceed the container's maximum pressure rating.
(D) ADDITIONAL REQUIREMENTS
(a) A person shall not allow loading or unloading of organic liquid, or other use or operation of any designated transporting vessel unless the vessel has a valid certification of vapor integrity as defined by the applicable Air Resources Board Certification and Test Procedures, pursuant to Health and Safety Code Section 41962(9) and the California Administrative Code Title 17, Section 94004.
(b) Vapor leaks from dome covers, pressure vacuum vents or other sources shall be determined in accordance with EPA Method 21.
(c) The transport equipment shall be operated such that there are no fugitive liquid leaks.
Uncontrolled switch loading is prohibited unless:
(a) any vapors vented to the atmosphere do not at any point during the transfer exceed 10,000 ppmv, measured as equivalent methane, with a portable hydrocarbon analyzer in accordance with EPA Method 21, or
(b) emissions are controlled by a vapor recovery system.
(a) The owner or operator of an organic liquid loading facility is responsible for complying with the provisions of this rule, and for maintaining the equipment at the facility in such condition that it can comply with the requirements of this rule if properly operated. If employees of the owner or operator of the facility supervise or effect the transfer operation, the owner or operator of the facility shall be responsible for ensuring that the transfer operation complies with all requirements of this rule and that the transfer equipment is properly operated.
(b) The owner, operator, or driver of a tank truck, trailer, or railroad tank car is responsible for complying with Subsections (D)(2) and (D)(3) of this rule.
(c) Where appropriate, the owner or operator of an organic liquid loading facility and the owner operator, or driver of a tank truck, trailer, or railroad tank car may be separately or jointly found in violation of this rule.
(E) RECORD KEEPING AND REPORTING
(a) The owner or operator shall maintain a log of all inspections, repairs, and maintenance on equipment subject to this rule. Such logs or records shall be maintained at the facility for at least 2 years and shall be made available to the APCO upon request.
(b) The owner or operator of a Class A or Class B Facility shall prepare a log showing the daily:
(iii) average stored volume over the 24 hour period (midnight to midnight)
(iv) storage and transfer temperatures of the organic liquid
(v) stored product's name and Chemical Abstracts Service (CAS) number
(vi) a monthly summary of the throughput for the calendar year to date.
(F) TEST METHODS FOR COMPLIANCE VERIFICATION
(a) Vapor Tightness (Fugitive Vapor Leaks) for all equipment described in this rule, unless otherwise specified, shall be determined by EPA Method 21 - Determination of Volatile Organic Compounds Leaks.
(b) Vapor Recovery System Efficiency for Delivery Vessels shall be determined by the EPA Method entitled Control of Organic Compound Leaks from Gasoline Tank Trucks and Vapor Collection Systems (method specified in the CTG EPA-450/2-78-051), or the CARB Method entitled, "Certification and Test Procedures for Vapor Recovery Systems of Gasoline Delivery Tanks".
(c) Reid Vapor Pressure shall be determined in accordance with ASTM Method D 323-82, and the true vapor pressure in psi absolute of stored liquid shall be determined by using the nomograph contained in American Petroleum Institute Bulletin 2517 for conversion of Reid vapor pressure to true vapor pressure.
(d) Vapor Recovery System Efficiency for Bulk Plants shall be determined by CARB Method 202, "Certification of Vapor Recovery Systems - Bulk Plants".
(e) Vapor Recovery System Efficiency for Terminals shall be determined by CARB Method 203, "Certification of Vapor Recovery Systems - Gasoline Terminals".
(f) Vapor Recovery System Efficiency for Service Stations shall be determined by the CARB Methods in "Test Procedures for Determining the Efficiency of Gasoline Vapor Recovery Systems at Service Stations".