Method 207-Pre-Survey Procedure for Corn Wet-Milling Facility Emission Sources

The EPA is taking direct final action to add Method 207 to the promulgated test methods in 40 CFR Part 51. Appendix M contains recommended test methods that are provided for the States to use in their State Implementation Plans. Therefore, this method may be used as an alternative to existing test methods for measuring volatile organic compound (VOC) emissions. This pre-survey method was developed by the corn wet-milling industry specifically to VOC mass emissions from processes within the corn wet-milling industry. It provides a systematic approach to develop a specific list of target organic compounds and the appropriate methods to measure those target compounds during subsequent VOC emissions testing. After using the pre-survey procedure, the tester will have sufficient information to design a comprehensive testing program using Method 18 and other appropriate methods to measure the mass of VOC emissions during the actual emissions testing. This method is an alternative to existing test methods and does not add any new reporting requirements to the reporting requirements that already exist. While it is an alternative method, it is the recommended method for measuring VOC mass emissions from corn wet-milling facilities.