BEEST 11.12 is out

Posted by on Tuesday, June 12th, 2018 in Newsletters

What’s Happening Now

EPA News

2018 Regional, State, and Local Modelers’ Workshop – US EPA held its annual Regional, State, and Local (RSL) Modelers’ Workshop June 5-7 in Boston. As usual, the first day of the workshop (June 5) was open for public attendance. Some of the agenda items included:

  • EPA’s 12th Conference on Air Quality Models will probably occur in the autumn of 2019
  • The 2018 update to the AERMOD Model Development and Update Plan will be released this summer / autumn
  • The next major update to AERMOD will be sometime in 2019
  • The AERMOD update *may* include the RLINE line source algorithm (as a beta option), the NO2 modeling scheme from the ADMS model, and PRIME / PRIME2 downwash algorithm updates (as alpha options)
  • A detailed discussion of the downwash research conducted by EPA’s Office of Research and Development and the AWMA PRIME2 committee was presented. A substantial amount of information from the PRIME2 work is included as an appendix to the PRIME2 slides.
  • A new, draft version of AERSURFACE, to be called 18152_DRFT, will be released soon (this summer?) for testing by the user community, pending completion of documentation. EPA will accept comments from testers for 60 days.
  • Updated ozone and PM2.5 permit modeling guidance will be released as a draft this summer
  • Discussion of MERPs (Modeled Emission Rates for Precursors) as a Tier 1 demonstration tool for PSD permits
  • Discussion regarding the new approach (codified in 2017 Appendix W update) for conducting cumulative impacts modeling
  • New Source Review / PSD policy update issues, including possible redefinition of ambient air, a new inter-pollutant trading rule (due in August 2018), the Project Emissions Accounting (PEA) rule, and an update to the “once in, always in” rule
You may view PDFs of all the presentations here.
Conferences and Workshops

Air & Waste Management Association

2018 AWMA Annual Conference and Exhibition – It’s here – AWMA’s Annual Conference and Exhibition (ACE)! This year’s premier environmental event will be held in Hartford, CT from June 25-28, 2018. This year’s theme is “Charting the Future – Environment, Energy, and Health”. We’ll be there – will you?

Come check us out at booth #517. We will have some Go BEEST Mode t-shirts and other swag to give away!

**We have a new software product that will be released later this summer – come by our booth for a demonstration and see what it can do for you!**

For more information on agenda, registration, etc. go to

AWMA Dispersion Modeling Specialty Conference – It was announced at the recent EPA RSL workshop that the next of AWMA’s series of dispersion modeling specialty conferences will be held in the spring of 2019 (no firm date is set yet) in Research Triangle Park, NC. Look for a call for papers later this summer.

**New Source Review Workshop Manual** – If you do New Source Review air permitting (and/or modeling), please note that AWMA’s New Source Review Manual is now available! This is an update to EPA’s old 1990 New Source Review Workshop Manual (Draft). This new version is available online in an interactive, hyperlinked and searchable format. It covers all the big NSR-related topics, such as PSD / nonattainment applicability, BACT, air quality analysis, and modeling. Check here for details.

If your company, organization, agency, State, etc. has an upcoming modeling or air quality-related event and you’d like it publicized in Providence/Oris Notes, please send that information to us at, and we’ll be happy to include it.

Simply the Best!


BEEST 11.12 was released May 18, 2018. This new version includes:

  • BEEST now fully supports AERMOD version 18081
  • BEEST now fully supports AERMAP version 18081
  • Our AerMet interface fully supports AERMET version 18081

A webinar about the new features in BEEST 11.12 was presented on May 29, 2018. Click here to watch the recording of the webinar, in case you missed it.

As always, users in maintenance can download the most recent version of BEEST from | Support | Software Updates.

Beginning with BEEST 11.08, we no longer support Windows Vista.

“Go BEEST Mode!” — What? You still don’t have your own “Go BEEST Mode” t-shirt? We’ve got plenty left, so email your request to and receive your very own “Go BEEST Mode” T-shirt! You’ll be the envy of modelers everywhere!

AerScreen for Windows

Since AerScreen for Windows uses both AERMOD and AERMAP, we released AerScreen for Windows 3.06 on May 31, 2018. This new version fully supports AERMOD 18081 and AERMAP 18081.

Users in maintenance can download the most recent version of AerScreen for Windows from | Support | Software Updates.

Beginning with AerScreen for Windows 3.04, we no longer support Windows Vista.

Professional CalPuff

Our most recent version of Professional CalPuff (4.00) was released August 26, 2016 and is available to all registered users with current maintenance.

Users in maintenance can download the most recent version of Professional CalPuff from | Support | Software Updates.

If you have suggestions for an enhancement to any of our modeling software products, please let us know and we’ll do our best to incorporate it into the software ASAP!

“Our expertise is contagious. Catch it!”

AERMOD Modeling for Permits

Our next AERMOD Modeling for Permits class will be July 31-August 1. As usual, it will be at our training facility at our Austin, Texas office. Register today and plan to join us in the Live Music Capital of the World! Click here to register!

Advanced AERMOD

Our next Advanced AERMOD class is going to be August 2-3, also at our Austin office. This popular course covers those topics that are near and dear to modelers, such as:

  • NAAQS modeling for 1-hour NO2, 1-hour SO2 and 24-hour PM2.5 (including the new MaxDCont Viewer)
  • Meteorological data processing with AERMET / AERMINUTE / AERSURFACE
  • Changes related to the new Appendix W (Guideline on Air Quality Models)
  • MAXIFILE and ARRAY2 processing

So, get your “Keep Austin Weird” vibe on and join us by registering for Advanced AERMOD by going here.

2018 Class Schedule

Here’s the last of our AERMOD classes for 2018:

Class Dates Location
AERMOD Modeling for Permits November 13-14 Austin, TX
Advanced AERMOD November 15-16 Austin, TX

**Don’t forget, if our schedule of classes doesn’t mesh with your schedule, or if you have several people that need to be trained at once, contact us about setting up an on-site class. Have laptop, will travel!**


**BeestXpress has been upgraded to run AERMOD 18081**

In addition, BeestXpress users have some great system enhancements to work with:

  • The “Job Details” webpage now displays the pollutant being modeled;
  • The “Job Details” webpage now displays run progress for MAXDCONT calculations;
  • Modeling runs with multiple partitions now include a combined AERMOD input file (*.DTA) in the output .ZIP file;
  • Added an option to the “Submit Job” webpage that affects modeling runs with multiple partitions: the intermediate output files created by each partition can be omitted from the output .ZIP file
  • The “Job Search” webpage now includes the option to search by project number
  • Users have access to up to 50 partitions per AERMOD run

We’re also excited to note the BeestXpress has now processed over 300,000 AERMOD runs. Wow!

If you’ve never used BeestXpress, or it has been a while since you did, you may want to log on at to take advantage of our AERMOD “force multiplier”. That AERMOD run that might have taken a day to run on your desktop computer can finish in an hour or less on BeestXpress. When time is money, BeestXpress is the best modeling return on investment there is!

Meteorological Data Processing Services

Do you need AERMOD-ready or CalPuff-ready meteorological data? If so, we can help! Whether it’s running the AERMET / AERMINUTE system or a full CalMet run, Providence/Oris has the background, know-how, and experience to have your data processed and ready for you ASAP. Need on-site data processed? We do that, too! If you’d like more information, contact us at or

Consulting Solutions

One thing that we’re very proud of is the depth and range of our modeling experience and expertise. The last time we counted, it was somewhere in the neighborhood of 250 years’ worth of experience. The kinds of models we’ve used include all types, ranging from simple screening tools like SCREEN and AERSCREEN to plume models like ISC and AERMOD to CalPuff to CAMx. The types of analyses included basic Significant Impact Level, NAAQS, PSD increment consumption, Class I analyses, air toxics, and SIP attainment demonstrations. Most recently, we have begun conducting nonattainment permit inter-pollutant trading (NOx for VOC) modeling using CAMx. So, we’ve seen it all. To that end, should you or your clients need additional modeling assistance or just a second set of eyes to QA or peer review your modeling (ranging from initial protocol up to final submission), we stand ready to help. Feel free to contact us at (512) 258-8855 or


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June 25-28, 2018
AWMA 111th Annual Conference and Exhibition
Hartford, CT

July 31-August 1, 2018
AERMOD Modeling for Permits
Austin, TX

August 2-3, 2018
Advanced AERMOD
Austin, TX

October 9-11, 2018
TCEQ Advanced Air Permitting Seminar
Austin, TX

October 24-26, 2018
CAPCA Fall Conference
Myrtle Beach, SC