API 4653 : 1997

EXECUTIVE SUMMARY
1 STUDY METHODOLOGY
       INTRODUCTION
          Objectives
          Scope
       DESCRIPTION OF METHODOLOGY
          Study Site Selection
          Component Counting Procedures
          Emissions Screening Procedures
    DATA MANAGEMENT
          Development of Emissions Factors
          Calculation of Site Specific Emissions
2 RESULTS AND ANALYSIS
       DATA COLLECTION
       DEVELOPMENT OF EMISSION FACTORS
          Emissions from Default Zero Components
          Emissions from Components with Screening Values
          Between Background and 100,000 ppmv
          Emissions from Components with Screening Values
          of 100,000 ppmv or More
          Calculation of Total Emissions and Emission Factors
       CALCULATION OF TOTAL EMISSIONS FROM EACH PIPELINE
          Calculation of Total Emissions Using Screening
          Values and EPA Correlations/Factors
          Calculation of Total Emissions Using Inventories
          and This Study's Emission Factors
          Comparison of Two Methods for Calculating Site
          Specific Fugitive Emissions
3 CONCLUSIONS
4 REFERENCES
ATTACHMENT A COMPONENTS WITH SCREENING VALUES ABOVE
              BACKGROUND BUT LESS THAN 100,000 PPMV
ATTACHMENT B CALCULATION OF SITE SPECIFIC EMISSIONS
              USING SCREENING VALUES AND 1995 EPA
              CORRELATIONS/FACTORS

Describes project involving ten pipeline facilities in the USA, which were screened and inventoried by means of EPA Method 21 guidelines (excluding those on tank tops). Developed emission factors for six component types at three types of pipeline facilities. Calculated fugitive emission rates by means of new emission factors.