TITLE 40 - PROTECTION OF ENVIRONMENT

CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER C - AIR PROGRAMS

PART 63 - NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES

subpart g - NATIONAL EMISSION STANDARDS FOR ORGANIC HAZARDOUS AIR POLLUTANTS FROM THE SYNTHETIC ORGANIC CHEMICAL MANUFACTURING INDUSTRY FOR PROCESS VENTS, STORAGE VESSELS, TRANSFER OPERATIONS, AND WASTEWATER

Table 23 to Subpart G of Part 63 - Average Clingage Factors (c) a

------------------------------------------------------------------------ Shell condition ----------------------------- Liquid Light Dense Gunite rust \b\ rust lined ------------------------------------------------------------------------ Gasoline.................................. 0.0015 0.0075 0.15 Single component stocks................... 0.0015 0.0075 0.15 Crude oil................................. 0.0060 0.030 0.60 ------------------------------------------------------------------------ \a\ Units for average clingage factors are barrels per 1,000 square feet.

\b\ If no specific information is available, these values can be assumed to represent the most common condition of tanks currently in use.