7-26 Air Dispersion Modeling Report
7-26 Table 16 Air Toxics Modeling Results Summary lists various air toxic hourly emission rate values for the HRSG Duct Burners. However, the HRSG Duct Burners were not listed as an individual emission source within the air toxic modeling files, and thus are not represented in the unit emission rate impact table by source. Comparison to RIDEM APCR No. 22 Acceptable Ambient Levels is not valid unless all relevant emission sources are included. Please explain/clarify.
RESPONSE 7-26
| Although the HRSG duct burners are separate sources of emissions, they exhaust from the same stacks as the combustion turbines. Each of the HRSG exhaust stacks was modeled as a single emission source which included the combined emissions from the associated combustion turbine and HRSG duct burner.
|
RESPONDENT:
| Michael Feinblatt, ESS Group, Inc.
|
DATE: | May 17, 2016
|