OCR Text |
Show that ten (10) categories were developed for Section 112 materials and two (2) subcategories were reserved for Section 129 materials. Proposed rationale for wood subcategories are also provided. Model boilers for boilers firing wood, fossil, and non-fossil materials - This is a compilation of model boilers developed by Boiler W o r k Group for boilers firing wood, fossil, or non-fossil materials. The compilation shows the characteristics of each model and includes the number of boilers in each model. Model boilers are needed to assess economics and health benefits for determining below the floor M A C T standards. There are usually multiple types of model boilers developed for each subcategory. HAPs of Interest for wood-fired boilers and digestor gas fired boilers - This is a compilation of the work performed to develop H A P s of interest for wood and digestor gas fired boilers. Wood - The documents include widely opposing viewpoints by members of the work group regarding H A P s of Interest for Wood. The documents also contain the supporting arguments for these viewpoints. Digestor Gas - After proceeding through the protocol, acrolein and formaldehyde were identified as the H A P s of interest for combustion of digestor gas. For a facility with multiple boilers, benzene and acetaldehyde would be added to the list. The analysis for digestor gas used a 10 MMBtu/hr boiler. This size is representative of the great majority of digestor gas fired boilers. The document also proposed a prelirninary M A C T floor of no additional controls for digestor gas fired boilers. Preliminary MACT floor analyses for wood and non-fossil boilers - This compiles the work done on developing prelirninary M A C T floors based on control technologies for wood and non-fossil boilers. Analyses of Good Combustion Practices - These consisted of tables summarizing good combustion practices required in various State Regulations De minimus levels for boilers subject to Section 129 - Draft rationale discussing the need for de rninimus levels for boilers subject to Section 129, and a recommendation of the de minimus level. CONCLUSIONS The ICCR process provided an opportunity for stakeholders holding widely different viewpoints to dialogue and present their concerns in an open forum. This dialogue was both a strength and weakness of the process. The dialogue helped the work group develop some excellent work products including the Closure items: D:^ps\iccr\bwg\boflerwg 9 |