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2011 NATA Review

2011 NATA Review. Agenda. Region 9 Introduction – Ken Davidson Goals and features of NATA – Madeleine Strum Modeling Emissions Risk Schedule for NATA – Madeleine Strum Review – Madeleine Strum Location of data Reports in EIS Comments on Nonpoint NATA – Madeleine Strum

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2011 NATA Review

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  1. 2011 NATA Review

  2. Agenda • Region 9 Introduction – Ken Davidson • Goals and features of NATA – Madeleine Strum • Modeling • Emissions • Risk • Schedule for NATA – Madeleine Strum • Review – Madeleine Strum • Location of data • Reports in EIS • Comments on Nonpoint NATA – Madeleine Strum • ARBs Instructions for NATA – Chris Nguyen

  3. Key Features of 2011 NATA Emissions: 2011 NATA will be based on version 2 of the 2011 NEI. Preliminary air quality and risk estimates are being calculated based on 2011 NEI v1 & released only to state/local agencies. This will assist with state review (not public) of v1 and will allow for early feedback of 2011 NATA results. Improvements to key source categories emissions/characterization, e.g., ports, oil and gas wells.

  4. Key Features of 2011 NATA Modeling: AERMOD: Dispersion model will be run for all air toxic pollutants to estimate pollutant concentrations at all US census tracts and blocks. CMAQ: Multipollutant version will be run for the US (lower 48) at 12km grid resolution. Model currently includes about 40 air toxic pollutants. Utilize gridded met data consistent with both CMAQ and AERMOD. To best characterize ambient concentrations of directly emitted and secondarily formed air toxics, a hybrid approach that combines data from AERMOD, CMAQ and ambient measurements will be applied.

  5. Key Features of 2011 NATA Risk Characterization: Health benchmarks are consistent with those used in RTR rulemakings. Several benchmarks have been updated since 2005 NATA but none appear to be risk drivers. Will continue to use 1991 IRIS unit risk value for formaldehyde. The IRIS review is ongoing. Will continue to provide risk apportionment information (i.e., source, pollutants). This allows states to use NATA to focus their air toxics efforts.

  6. 2011 Current Schedule 2011 NEI V1 Released on public website on 9/30/13. http://www.epa.gov/ttn/chief/net/2011inventory.html Have completed preliminary risk modeling of 2011 NEI V1 point sources. Using AERMOD and 2011 WRF met data, we have developed facility level census block max cancer risks and noncancer hazards for each point source facility. Expect to complete nonpoint source modeling within the next few weeks. (Except for CMV) Maximum risk results for each facility are available for S/L/Ts to review on the password protected review site Provided risk results as part of NEI review to help facilitate review and identify potential outliers and focus review on key emissions. Inventory review geared towards S/L/T inventory and toxic staff but APMs may want to let Regional and S/L/T risk staff know of data availability 2011 NEI V1 review period ends 3/31/14

  7. 2011 Current Schedule (cont) Remodel point/nonpoint/mobile with NEI V2 - Fall 2014 This will include both AERMOD and CMAQ modeling of NEI V2. Develop NATA website and technical support document. Begin S/L/T preview of all NATA risks results – Dec 2014 We expect the preview to be similar to earlier NATA S/L/T previews with state specific data, webinars, & communication materials Expected public release date: Mar 2015

  8. 2011 NATA Current Milestones/Schedule Key Milestones: Point Source Risk Results (NEIV1) to S/L/Ts Nonpoint Source Risk Results (NEIV1) to S/L/Ts Start 2011 NATA S/L/T Preview Public Release of 2011 NATA NEI V1 Released Sept 2013 Oct Nov Dec Jan –Mar 2014 April-June July-Sept Oct-Dec Jan-Mar 2015 April 2015 2011 NATA S/L/T Preview NEI V1 S/L/T Review Develop NEI V2 (Final NATA Inventory) 2011 NATA Modeling (based on NEI V2) Project Schedule:

  9. NATA / Point Review Without Airports

  10. NATA Risk Review • NATA Risk Criteria – risk thresholds to consider • Facility exceeds 10 in a million risk for cancer, and/or • Facility noncancer risk for any target organ group (respiratory, neurological, etc.) exceed a hazard quotient of 1 • Review the NATA Facilities file for • Pollutant(s) at facility contributing to risk • Emissions values for all pollutants • Facility emission release points for these pollutants • Emission Release Point Type • Emission Release Point Parameters • Emission Release Point Lat/Lon

  11. Review Files • The password protected review files, and instruction sheets, are located at • http://www.epa.gov/ttn/chief/natareview/ • Login: reviewer • Password: 2011nata • Not for public review • Website contains two sets of reviews • Point, no airports • TRI

  12. Review-Example • Recology Grover Environmental Products • EIS 15843311; Agency ID 3914307709 • Facility: Location: Various Specified Locations, SJVUAPCD, CA, 00000 • Lat/Lon – 37.946481, -121.316289 • Top 20 High Risk Facility in Nation

  13. 2. Max pollutant cancer and non-cancer risks 1. First Filter on the Program System Code for California - CARB

  14. Release Point Types 1 = Fugitive 2 = Vertical 3 = Horizontal 4 = Goose Neck 5 = Vertical with Rain Cap 6 = Downward-facing vent

  15. If parameters are not provided for fugitive releases, then defaults are used for modeling.

  16. Process Level • The spreadsheet provides release point emissions. • Process level emissions may be seen either individually on the Gateway, or • Emissions Process Report • Gateway Reports • Request Reports • Emission Summaries • By Facility • Report Type: Emissions Process • Dataset: 2011 NEI v1 with biogenics • Pollutant: Active HAPS • Either select the State “CA” OR the individual Counties. • Select “Request Download” • Pick up reports on the Gateway under Report Downloads • Reports run every 15 minutes.

  17. 1 2 3

  18. 20 Type in “2011 nei” in the search box. Then select.

  19. You may select a particular pollutant by using the search box. Or you may select the pre-selected buttons such as “All Active”.

  20. Next select your geographic region. Either select your State OR you may select individual counties under Counties. Do not select both.

  21. There are additional filters which can be used to refine your report such as SCC or NAICs. Next select “Request Download”

  22. 1 2 3 Summary reports are run every 15 minutes. A “x”(1) indicates that the report has not been run. The magnifying glass (2) expands to show the report parameters. When the report is ready for download you will see a page icon (3) which when click will allow you to download the report In .csvformat.

  23. Emission Process Report • CA Emission Process Report with data source

  24. What should be reviewed? • Emissions • Are they correct? • Release Points • Type • Fugitive or Stack • Parameters (if stack) • Height, Diameter, Temp, Exit Gas Flow Rate or Velocity. • Location • Facility • Release Points • Facilities • Would you expect the facility to be high risk? • Are there facilities which you believe are high risk but appear as very low risk in the table?

  25. NATA/TRI Review

  26. NATA/TRI Review • File contains list of facility-pollutant combinations with HIGH risk based on 2011 Toxic Release Inventory • Emissions missing from EIS (2011 v1) • EIS facility matched missing these high risk pollutants • Cannot find a matching facility in EIS. • Dependent on your comments, facilities/TRI emissions may be included in 2011 NEI v2 and NATA

  27. Nonpoint Review • Comments • Will be posted to the same password protected website this week • Comments due by 3/31/2014

  28. Questions • Any questions may be referred to: • Ron Ryan, ryan.ron@epa.gov 919-541-4330 • Sally Dombrowski, dombrowski.sally@epa.gov, 919-541-3269

  29. Comments from ARB

  30. ARB - Additional Notes • EIS Data were downloaded by the ARB • Agency ID has been disaggregated into COABDIS • Contact tnguyen@arb.ca.gov • Contact districts’ liaisons for specific emissions inventory data • Districts’ data will be emailed

  31. Procedure • Update emissions by device, by process • Update Stack Parameters: • STKHT • STKDIAM • GT • GF or GV • Submit a Transaction Format File

  32. Questions?

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