The National Emissions Inventory (NEI)

1. The National Emissions Inventory (NEI) Sally Dombrowski EPA-OAQPS

2. What is the NEI? • EPA’s compilation of estimates of air pollutants discharged on an annual basis and their sources. • Compilation includes emission estimates submitted by tribal, state, and local air pollution control agencies • Estimates calculated by EPA, and emissions obtained from other sources

3. EIS and the NEI • Emissions Inventory System (EIS) • Data repository for air emissions data used to create NEI • Contains state, local, tribal and EPA-submitted data • Can be multiple emissions values for the same unit/process • Annual, monthly, daily data • Data available via password-protected web site • EIS Gateway https://eis.epa.gov/eis-system-web/welcome.html

4. EIS and the NEI (cont.) • National Emissions Inventory (NEI) • Snapshot in time from EIS • Inventory version shared with the public • One emissions value per process selected • Annual emissions values

5. How is the NEI created? • Your data has priority in our selection • Only one file format is permitted: xml • Data must pass QA prior to being submitted to EPA • Only incorrect data is rejected; all remaining records accepted • Availability to have multiple values and do several types of NEI selections • Version done in 6 months or less

6. Who Has Access to the NEI? • Tribal, state and local agency users of EIS Gateway have access to their data and any National public releases • States may authorize tribes READ-access-only to their data • This allows you to download data for direct import into TEISS • General public has no access to data until data released to public website

7. Uses of the NEI • NEI is one of key inputs for • Modeling of national rules – NAAQS reviews, CSAPR, etc • Non-attainment designations • NATA Review – toxics risk modeling • Trends reports and analyses

8. National Emissions Inventory (NEI) • Created from S/L/T submitted data to Emissions Inventory System (EIS) • General Public Release (GPR) • Separate Public Website

9. Contact Sally Dombrowski (919) 541-3269 dombrowski.sally@epa.gov

10. Air Emissions Reporting Requirements (AERR) Rule

11. Reporting Requirement • Air Emissions Reporting Rule (AERR) http://www.epa.gov/ttn/chief/aerr/ • Complete criteria pollutant inventory every 3 years • All point sources (100 tpy potential to emit threshold) • Nonpoint sources • Onroad and Nonroad sources • Events (wildfires and prescribed fires) • 2011 emissions due 12/31/2012; EIS window opens 6/1/2012

12. Reporting Requirement (cont.) • Annual reporting for type A point source facilities • SO2, NOx, CO with potential to emit > 2,500 tpy • VOC, PM, NH3 with potential to emit > 250 tpy • Pb with potential to emit > 5 tpy (to be amended to agree with Lead NAAQS level of > 0.5 tpy) • HAPs submitted voluntarily by many S/L/Ts, encouraged as part of an integrated report

13. What is a Major Source?

14. Reporting Changes in AERR • 40 CFR 70 definition of major source now used for point source reporting • Potential to emit, not actual • AERR requires emission reports within 12 months from end of inventory • No biogenic emissions requirement

15. Reporting Changes in AERR (cont.) • Model inputs in lieu of emissions are preferred • Summer day emissions of VOC and NOx for ozone nonattainment areas only • Winter work weekday emissions of CO required for nonattainment areas and areas with maintenance plans

16. Reporting Changes in AERR (cont.) • Particulate Matter • Reporting of PM primary (sum of filterable and condensible components) required under CERR • Reporting of filterable and condensible components is a new requirement in AERR • We added component-reporting requirement to help us understand what was being reported as PM primary • New QA check • Report PM2.5; must report PM10

17. What are the Reporting Cycles? • Every-Year Cycle Reporting • Annual emissions from Type A (large) point sources. If one pollutant qualifies source as Type A, all pollutants must be reported • Ozone season and summer day emissions of NOx from sources controlled to meet TIP Call requirements

18. What are the Reporting Cycles? • Three-Year Cycle Reporting • Annual emissions of criteria pollutants from all sources • Ozone season and summer day emissions of NOx from all sources • Summer day emissions of NOx and VOC for ozone nonattainment areas • Winter work week day emissions of CO for nonattainment areas and attainment areas with maintenance plans

19. Which pollutants need to be reported? • Tribes should report emissions of the following pollutants • Volatile Organic Compounds (VOC) • PM2.5 (Filterable, Condensable and Primary) • PM10 (Filterable, Condensable and Primary) • Nitrogen Oxides (NOx) • Carbon Monoxide (CO) • Lead (7439921) • Sulfur Dioxide (SO2) • Ammonia (NH3)

20. Will point source reporting for lead be changed? • Lead NAAQS final rulemaking promulgated on October 15, 2008; changed Lead emission inventory point source threshold from 5 tons/year to 0.5 tons/year • We intend to revise 5 tons/year threshold for Lead point sources in AERR to help identify potential for Lead point-source problems in attainment/unclassifiable areas under Lead NAAQS

21. What About HAPs and GHGs? • Hazardous Air Pollutants (HAPs) reporting not required, but we encourage tribes to submit them on voluntary basis using requirements of AERR • Greenhouse Gases (GHGs) reporting not required under AERR • GHG pollutants accepted in EIS

22. Contact for AERR Marc Houyoux 919-541-3649 houyoux.marc@epa.gov

23. Overview of the Tribal New Source Review (NSR) Rule

24. New Source Review • Final effective August 30, 2011 • Establishes cost-effective preconstruction permitting program for • New or modified minor sources • Minor modifications at major sources • New major sources or major modifications in nonattainment areas • Permitting mechanism for major sources to limit emissions to become synthetic minors* • Allowing administration of program by tribes through delegation to EPA

25. Major NSR Rule • New major sources • Based on source’s PTE • Nonattainment areas – 100 tpy of any pollutant • Attainment areas – 100 or 250 tpy depending on source type • Modifications to existing major sources • Physical change in or change in method • Increase in net emissions resulting from change must be significant

26. Minor NSR Rule • Applies to • New and modified minor sources • Minor modifications at major sources • Must obtain permit prior to construction • Minor sources with potential to emit (PTE) equal to or greater than minor NSR thresholds • Modifications at minor sources with allowable emissions increase equal to or greater than minor NSR thresholds

27. Major/Minor NSR Rule • At discretion of reviewing authority • Must install and operate control technology • Required to submit air quality impact analyses as part of permit applications • Assess impacts on national parks & wilderness areas • Allow for opportunities for public involvement

28. Training • EPA training • http://epa.gov/air/tribal/tribalnsr.html

29. Contacts: Laura McKelvey Phone: 919-541-5497 mckelvey.laura@epa.gov Raj Rao Phone: 919-541-5344 rao.raj@epa.gov Jessica Montañez Phone: 919-541-3407 montanez.jessica@epa.gov

30. The Laypersons Guide to EPAese Presented by SJD, who works on the EIS/NEI in EIAG of OAQPS

31. What does it all mean? • AQS • EMC • EMCH • WebFIRE • FRS • TRI • EIS • NEI • CERR / CERs??

32. AQS - Air Quality Systemhttp://www.epa.gov/ttn/airs/airsaqs/ • Monitoring Data • Air Quality System (AQS) is EPA's repository of ambient air quality data • AQS stores data from over 10,000 monitors; 5000 currently active • State, local and tribal agencies collect the data and submit to AQS on periodic basis

34. EMC - Emissions Measurement Center http://www.epa.gov/ttn/chief/efpac/index.html • Test methods for measuring pollutants from smokestacks and other industrial sources • Assistance in use and application of these methods • Guidance on use of emission factors

36. Emission Modeling Clearinghousehttp://www.epa.gov/ttn/chief/emch/index.html • Database of platform data for modeling • Modeling software • Training courses

39. WebFIREhttp://cfpub.epa.gov/webfire/ • Depository of emission factors • List of emission factors may be downloaded in .csv format (opens in Excel) • SCCs not always up-to-date

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41. Federal Registry System http://www.epa.gov/enviro/html/fii/index.html • Database of facilities subject to environmental regulations • Contains S/L/T and EPA identifiers across all offices (air, water, waste)

43. TRI – Toxic Release Inventoryhttp://www.epa.gov/tri/ • HAP Data • Facility-reported • Provide communities with information about toxic chemical releases and waste management activities • Toxic Releases on Tribal Lands: EPA is hosting a TRI Webinar for tribal stakeholders to promote use and awareness of TRI in Indian Country and Alaska Native Villages http://www.chemicalright2know.org/

46. Training • Air Pollution Training Institute http://www.epa.gov/apti/course_topic.html

47. Air Pollution Training Institute

48. EIS-Emissions Inventory System • Secure website • Contains S/L/T submitted emission inventory • Used to develop the National Emissions Inventory (NEI) • Data used in modeling and the development of guidance and regulations • Contains multiple values • Annual reporting major sources • Tri-annual reporting of all sources