The operators of a facility that combusts municipal solid waste or other waste-derived fuels and operates a CEMS in response to federal, state, or AQMD/APCD regulations, including 40 CFR Part 60 or 40 CFR Part 75, may use CO2 concentrations and flue gas flow measurements to determine hourly CO2 mass emissions using methodologies provided in 40 CFR Part 75, Appendix F. The operator shall report CO2 emissions for the report year in metric tonnes based on the sum of hourly CO2 mass emissions over the year and converted to metric tonnes. Emissions calculations shall not be based on O2 concentrations.
The operator of a facility that combusts municipal solid waste or other waste-derived fuels who chooses to calculate CO2 emissions using the methodology provided in section 95125(g)(2) shall determine the portion of emissions associated with the combustion of biomass-derived fuels using the method provided in section 95125(h)(2), if applicable.
The operator who chooses to use CEMS data to report CO2 emissions from a facility that co-fires fossil fuels with biomass or waste-derived fuels that are partly biomass shall determine the portion of total CO2 emissions separately assigned to the fossil fuel and the biomass-derived fuel using the method provided in section 95125(h)(2), if applicable. The operator who co- fires pure biomass with fossil fuels may elect to calculate CO2 emissions for the fossil fuels using methods designated in section 95111(c) by fuel type and then subtract the fossil fuel related emissions from the total CO2 emissions determined using the CEMS based methodology.
The operator who chooses to report CO2 emissions using CEMS data is relieved of requirements to separately report process emissions from combustion emissions or to report emissions separately for different fossil fuels when only fossil fuels are co-fired. In this circumstance operators shall still report fuel use by fuel type as otherwise required in this article.
If a facility is subject to requirements in 40 CFR Part 60 or 40 CFR Part 75 and the operator chooses to add devices to an existing continuous monitoring system for the purpose of measuring CO2 concentrations or flue gas flow, the operator shall select and operate the added devices pursuant to the requirements in 40 CFR Part 60 or Part 75 that apply to the facility. If the facility is subject to both 40 CFR Part 60 and 40 CFR Part 75, the
If the operator of a facility that combusts biomass uses O2 concentrations to calculate CO2 concentrations, annual source testing must demonstrate that calculated CO2 concentrations when compared to measured CO2 concentrations meet the Relative Accuracy Test Audit (RATA) requirements in 40 CFR Part 60, Appendix B, Performance Specification 3.