Model Clearinghouse - Documents

Model Clearinghouse Documents Page

• 2016 Model Clearinghouse Operational Plan (pdf) (1.06 MB, 12-19-2016, 454-B-16-008)
  2016 Model Clearinghouse Operational Plan
• Example MCH Response Memo (pdf) (160.82 KB, 11-13-1992)
  Example MCH Response Memo
• Example Regional Office Request Memo (pdf) (175.46 KB, 11-05-1992)
  Example Regional Office Request Memo
• Clarification on AERSCREEN as Recommended Screening Model (pdf) (261.65 KB, 04-11-2011)
  Clarification on AERSCREEN as Recommended Screening Model
• Clarification on the Use of ASOS Meteorological Data in AERMOD Dispersion Modeling (pdf) (1.29 MB, 03-08-2013)
  Clarification on the Use of ASOS Meteorological Data in AERMOD Dispersion Modeling
• Use of Photochemical Grid Models for Single-Source Ozone and secondary PM2.5 impacts for Permit Program Related Assessments and for NAAQS Attainment Demonstrations for Ozone, PM2.5 and Regional Haze (pdf) (513.56 KB, 08-04-2017)
  Use of Photochemical Grid Models for Single-Source Ozone and secondary PM2.5 impacts for Permit Program Related Assessments and for NAAQS Attainment Demonstrations for Ozone, PM2.5 and Regional Haze
• Additional Clarification Regarding Applicability of Appendix W Modeling Guidance for the 1-hour NO2 NAAQS (pdf) (442.65 KB, 03-01-2011)
  Additional Clarification Regarding Applicability of Appendix W Modeling Guidance for the 1-hour NO2 NAAQS
• Clarification on the Approval Process for Regulatory Application of the AERMOD Modeling System Beta Options (pdf) (442 KB, 12-10-2015)
  Clarification on the Approval Process for Regulatory Application of the AERMOD Modeling System Beta Options
• Clarification on EPA-FLM Recommended Settings for CALMET (pdf) (587.18 KB, 08-31-2009)
  Clarification on EPA-FLM Recommended Settings for CALMET
• Clarification on Regulatory Status of CALPUFF for Nearfield Applications (pdf) (315.54 KB, 08-13-2008)
  Clarification on Regulatory Status of CALPUFF for Nearfield Applications
• Clarification on Regulatory Status of Proprietary Versions of AERMOD (pdf) (140.33 KB, 12-11-2007)
  Clarification on Regulatory Status of Proprietary Versions of AERMOD
• Applicability of Appendix W Modeling Guidance for the 1-hour NO2 NAAQS (pdf) (277.88 KB, 06-28-2010)
  Applicability of Appendix W Modeling Guidance for the 1-hour NO2 NAAQS
• Applicability of Appendix W Modeling Guidance for the 1-hour SO2 NAAQS (pdf) (281.46 KB, 08-23-2010)
  Applicability of Appendix W Modeling Guidance for the 1-hour SO2 NAAQS
• Clarification on the Use of AERMOD Dispersion Modeling for Demonstrating Compliance with the NO2 National Ambient Air Quality Standard (pdf) (1.16 MB, 09-30-2014)
  Clarification on the Use of AERMOD Dispersion Modeling for Demonstrating Compliance with the NO2 National Ambient Air Quality Standard
• Modeling Procedures for Demonstrating Compliance with PM2.5 NAAQS (pdf) (642.03 KB, 03-23-2010)
  Modeling Procedures for Demonstrating Compliance with PM2.5 NAAQS
• Revised Policy to Address Reconsideration of Interpollutant Trading Provisions for Fine Particles (PM2.5) (pdf) (359.08 KB, 07-21-2011)
  Revised Policy to Address Reconsideration of Interpollutant Trading Provisions for Fine Particles (PM2.5)
• Clarification on the AERMOD Modeling System Version for Use in SO2 Implementation Efforts and Other Regulatory Actions (pdf) (357.47 KB, 03-08-2017)
  Clarification on the AERMOD Modeling System Version for Use in SO2 Implementation Efforts and Other Regulatory Actions