NORTHERN SIERRA AIR QUALITY MANAGEMENT DISTRICT
RULE 218 - VAPOR COLLECTION AND DISPOSAL SYSTEM AT LOADING FACILITIES
Adopted: September 11, 1991
- Vapor Recovery Required
A person shall not load any organic liquids having a vapor pressure of 10.34 kPa (1.5 PSI) or greater under actual
loading conditions into any tank truck, trailer, or railroad tank car from any loading facility having an annual
throughput of five million (5,000,000) gallons or more unless the loading facility is equipped with a vapor collection
and disposal system as specified below, or its equivalent approved by the Air Pollution Control Officer.
- Vapor Recovery Criteria
Loading shall be accomplished in such a manner that all displaced vapor and air will be vented only to the vapor
collection system. The vapor disposal portion of the collection and disposal system shall consist of one of the
- An adsorber system, condensation system, incineration system, or combination system which processes all vapors
and which limits the emission of vapors and gases to no more than 0.5 pounds of non-methane hydrocarbons per 1,000
gallons of organic liquids transferred, as determined by CARB Test Method 2-3 or by an equivalent method approved
by the APCO in writing.
- A vapor handling system which directs all vapor to a fuel gas system.
- Other equipment of an efficiency equal to or greater than that specified in Sections A or B if approved by
the Air Pollution Control Officer.
- Equipment Maintenance
All equipment associated with loading operations shall be maintained to be leak free and vapor tight.