Published on October 5, 2007
Mingo, Missouri: Mingo, Missouri Regional Haze Consultation - Mingo (MO) - Hercules Glades (MO) - Upper Buffalo (AR) - Caney Creek (AR) Air Quality Advisory Committee Meeting March 22, 2007 Consultation: Consultation The regional haze rule requires state to consult with other states that contribute visibility impairment to its Class l areas. There are two Class l areas in Missouri, Mingo and Hercules Glades. The goal of consultation is to obtain additional emission reductions in order to meet the 2018 Reasonable Progress Goals (RPGs) by working with other states, tribes, FLM, and EPA. Consultation Process: Consultation Process Developed a draft consultation plan. Continue to refine the technical analysis, RPGs, source contributions, area of influence, cost and control strategy, etc. Initiate consultation with other States. Today’s Topics: Today’s Topics How to determine contributing states? How to determine emissions reduction targets and potential sources? Next steps What is Regional Haze: What is Regional Haze Very fine particles and gases Sulfate (power plants, industrial boiler, lead smelter, etc.) Nitrate (power plants, mobile sources, cement kilns) Organic Carbon (mobile sources, wood combustion, fires) Elemental Carbon (diesel engines, other combustion) Crustal Material (limestone quarry, fugitive dust) Scatter or absorb light Hercules Glades: Hercules Glades Hercules Glades: Hercules Glades How to determine contributing States: How to determine contributing States Emissions/Distance (Q/D) - MDNR Trajectory/Factor Analysis (PMF) - MDNR Area of Influence (AOI) - Alpine Geophysics Source apportionment (PSAT) - ENVIRON Slide12: Area of Influence NOx: MO,AR,OK,KS,NE,IA,SD SO2: MO,AR,MS,AL,TN,KY,IL,IN Mingo: Mingo MO, IL, IN, KY MO, IL, KY, AR, KS Hercules Glades: Hercules Glades MO, IL, IN, KY MO, AR, LA, OK, TX, KS, IA, MN, LA PM Source Apportionment: PM Source Apportionment Contributing States Mingo Class I Area: Contributing States Mingo Class I Area How to determine emissions reduction targets: How to determine emissions reduction targets Determine the DV shortfall to meet the 2018 URP goal at each class l area. Convert the DV shortfall to PM species required either single specie only or multiple species in propotion. Determine species/precursor emissions coefficients within AOI for each class l area. Calculate emissions reduction needed to meet the shortfall Slide18: Baseline Condition Natural Condition RPG 2018 Shortfall = 22.27 – 23.08 = - 0.81 dv Modeled What is a Visibility Shortfall 2018 Visibility Shortfalls (2018F): 2018 Visibility Shortfalls (2018F) Slide20: Emission reductions needed to meet the 2018 RPG Identify Potential Emissions Sources: Identify Potential Emissions Sources Start with geo-coded county list Identify sources for potential control Apply all available controls to each source Eliminate tech that are not cost-effective Slide22: SO2 Emissions by State/Source Category Slide23: NOx Emissions by State/Source Category Slide24: Potential Sources Control options should leave to States: States review existing or planned controls for major sources in AOI emissions and existing controls States determine sources for which 4 factors analysis will apply source-specific costs, existing controls, remaining useful life, environmental and energy impacts States define which sources will be included in control strategy runs Control options should leave to States Next Steps: Next Steps Send the draft plan to contributing states. Revise the contributing states list based on new PSAT results from CENRAP. Initiate the consultation process by a conference call for consultation in February A face to face meeting in March? Work with states to refine the potential sources list using a 4-factor analysis. Conduct sensitivity modeling on potential sources. States define Control Options: States review/confirm the existing or planned controls for major SO2 & NOx sources States determine sources for which 4 factors analysis will apply source-specific costs, existing controls, remaining useful life, environmental and energy impacts States identify which sources with controls will be included in control strategy runs States define Control Options Next Steps: Next Steps Send the consultation plan to states. Set up a “kick-off” conference call for consultation. Revise the contributing states list based on latest PSAT results and Q/d calculations. Work with states to refine the potential sources list using a 4-factor analysis. Conduct control strategy modeling on potential sources. Slide29: Hercules Glades, Missouri Questions?