Table of Contents
Introduction.............................................................................................................................................. 2
I. SOURCE CATEGORY: Asphalt Roofing Manufacturing........................................................... 3
A. Source Category Description.....................................................................................................................3
A.1. Asphalt Roofing Manufacturing in the PATS Area..............................................................................3
A.2. Asphalt Roofing Manufacturing Devices .............................................................................................3
B. Modeling Results: Degree of Contribution and Emission Reductions Needed.....................................4
B.1. Description of emissions/2017 modeling results from asphalt roofing manufacturing ........................4
B.2. Main risk drivers..................................................................................................................................5
C. Source Category Effect on Distribution of Emissions..............................................................................5
II. SUMMARY OF EXISTING EMISSION REDUCTION STRATEGIES............................... 6
A. Measures for Asphalt Roofing Manufacturing Processes........................................................................6
III. SUMMARY OF POTENTIAL NEW EMISSION REDUCTION MEASURES.................... 8
A. Narrative Overview of Strategies Evaluated.............................................................................................8
B. Summary of Strategies Evaluated..............................................................................................................8
C. Other Measures Considered.....................................................................................................................12
IV. DETAILS FOR EACH POTENTIAL NEW EMISSION REDUCTION MEASURE ........ 13
A. Strategy #1: Thermal oxidation (Require PM and VOC controls beyond the NSPS on asphalt storage tanks, blowing stills, saturators, coater-mixer tanks, and coaters) ..................................................13
V. ATTACHMENTS ....................................................................................................................... 15
Attachment A: Considerations.........................................................................................................................15
VI. References ....................................................................................................................................... 19
Tables
Table 1. 2017 Projected HAP Emissions for Asphalt Roofing Manufacturing Source Category (pounds/year) ............................................................................................................................................. 3
Table 2: Reduction Targets for Asphalt Roofing Manufacturing............................................................... 4
Table 3: Blueprint and Brainstorm List Strategies ..................................................................................... 8
Table 4: PATS Pollutants Emission Reductions from Each Strategy......................................................... 9
Table 5: Other Pollutants Reduced by Each Strategy............................................................................... 10
Table 6: Summary of Strategies Evaluated: Timeframe, Technical Feasibility, and Cost ....................... 11
Table 7: Blueprint and Brainstorm List Strategies ................................................................................... 15
Table 8: Effectiveness.............................................................................................................................. 15
Table 9: Implementation/Feasibility Barriers ........................................................................................... 16
Table 10: Cost Considerations................................................................................................................. 17
Table 11: Benefits and Distribution of Benefits and Cost ........................................................................ 18