Lakes Environmental Software
Volume 6 - Issue 10 Monthly Newsletter - October 2005
News & Events
Upcoming Courses
Monthly Modeling Tip
This Month’s Articles
Conferences & Tradeshows
About this Newsletter
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News & Events

CALPUFF View Version 1.7 Released!

Lakes Environmental is proud to announce the release of CALPUFF View Version 1.7 on September 27, 2005.  This release includes new features such as the ability to import sources from Excel and additional parameter checks to verify the completeness of your project.  New tools have also been added to CALPOST reducing the time needed for data entry.  For an extensive list of the new options and improvements made to CALPUFF View, please see our Release Notes at
If you are currently in maintenance and did not receive an email regarding the update, please contact us at

If you are a user of CALPUFF View, and are no longer in maintenance, contact us for appropriate pricing information for your maintenance renewal.

2006 AERMOD & ISCST3 Course Dates Announced

Lakes Environmental, together with MACTEC and Russell Lee, have just announced the 2006 AERMOD and ISCST3 course schedule for 2006.  Limited spaces are available so be sure to register early to guarantee your spot and to take advantage of our early registration discount.

U.S. EPA Promulgates HHRAP!

The U.S. EPA has recently promulgated and released an updated guidance of the Human Health Risk Assessment Protocol for Hazardous Waste Combustion Facilities (HHRAP).  Lakes Environmental has begun implementing changes to the IRAP-h View software package, with a new version of IRAP-h View to be released in the near future.  Users who are currently under maintenance will receive an email notice when the updates to IRAP-h View are complete.  For more information on the revised protocol, or for a copy of the guidance documentation, visit

Upcoming Courses

We’ve set a number of training dates for 2005 and 2006, with additional courses to be announced.  Please contact us at for international or customized training needs.


Nov. 17-18, 2005 Tampa, Florida
Feb. 23-24, 2006 Houston, Texas
May 4-5, 2006 Charlotte, North Carolina
June 8-9, 2006 Los Angeles, California
Sep. 21-22, 2006 Denver, Colorado
Oct. 12-13, 2006 Boston, Massachusetts
Nov 16-17, 2006 Orlando, Florida


Dec. 7-9, 2005 Vancouver, British Columbia

Customized Courses

Lakes Environmental offers a variety of on-site, customized courses for all of your air dispersion modeling needs.  For information on pricing and availability, please email us at

For more information on these courses, such as registration information and course outlines, please visit our website:

Monthly Modeling Tip

Plotfile Limit in ISCST3

When running the U.S. EPA ISCST3 model, you should be aware that there is a limit to the number of plotfiles that can be generated by this model.  The current EPA-compiled version of ISCST3 allows for a maximum of 30 plotfiles to be created during any given run.

This limit is a result of how the model was compiled.  Compared to AERMOD and ISC-PRIME, ISCST3 was compiled with a 16-bit compiler (see chart below):




Date Compiled

ISCST3.EXE 02035 Lahey Fortran 16-bit Feb. 04, 2002
ISC3P.EXE 04269 Visual Fortran Win 32 Aug. 26, 2004
AERMOD.EXE 04300 Visual Fortran Win 32 Apr. 14, 2005

If you attempt to run an ISCST3 project with more than 30 plotfiles specified, you may encounter an error similar to the following:

“OU E500 5360 OUPLOT:Fatal Error Occurs Opening the Data File of PLTFL000”

where “PLTFL000” refers to the type of file and file unit number that is causing the error.  This fatal error will potentially occur for each plotfile that is in excess of the 30-plotfile limit.

ISC-AERMOD View users that are currently in maintenance can visit the update site at to download a recompiled version of ISCST3.EXE that is capable of generating a greater number of plotfiles.

Don’t Forget: Submit Your Modeling Tips Now!

We are currently accepting submissions for the Monthly Modeling Tip which appears in our newsletters.  If you have a modeling tip that may benefit a variety of people, please send it to us at   Your name and the name of your organization will appear below the tip providing you with greater exposure.

This Month's Articles

Great Lakes are Suffering
The U.S. EPA could do more to ensure that states protect the eight Great Lakes, the Government Accountability Office (GAO) notes in a new report.  At the request of several members of Congress, GAO analysts reviewed how successful the states bordering the lakes and EPA officials have been in implementing the Great Lakes Initiative (GLI), a federal program designed to control toxic releases and protect aquatic life and wildlife.
LA Study Highlights Pollution Postcode Lottery
A study based at the University of Southern California (USC) tracked the health of almost 23,000 people from 260 Los Angeles neighbourhoods and found huge variations while suggesting the overall picture was far bleaker than previously suspected.
Researchers Launch Biggest Study of U.S. Children
Researchers hoping to determine the causes of many common diseases like autism and diabetes will follow 100,000 U.S. children from birth through adulthood in the largest ever study of its kind.
Hong Kong Leader: Southern China Aims To Announce Air Quality Data Daily
Authorities aim to announce daily air quality data on southern mainland China -- a major source of air pollution in Hong Kong -- by the end of the year, Hong Kong's leader said.
Energy Alliance Turns Up the Heat on US Administration
An alliance of over 30 companies and energy sector organizations is demanding the US administration acknowledge man-made climate change in the wake of Hurricane Katrina - by committing real cash to solutions.
Criteria and Air-Toxic Emissions from In-Use Automobiles in the National Low-Emission Vehicle Program
The U.S. Environmental Protection Agency (EPA) implemented a program to identify tailpipe emissions of criteria and air-toxic contaminants from in-use, lightduty low-emission vehicles (LEVs).  EPA recruited 25 LEVs in 2002 and measured emissions on a chassis dynamometer using the cold-start urban dynamometer driving schedule of the Federal Test Procedure.

Conferences & Tradeshows

Here are a few Conferences and Tradeshows coming up in the next few months:
Oct 11-13, 2005 S-DEV Geneva 05
Geneva, Switzerland
Nov 29-30, 2005 Year in Review 2005 Environment Conference
Toronto, ON
Nov 29-Dec 2, 2005 Pollutec 2005
Paris, France
Jan 22-25, 2006 Visit us at:
EUEC Electric Utilities Environmental Conference
Tucson, AZ
Jan 25-27, 2006 ECO Canada Conference 2006
Toronto, Ontario

About This Newsletter

This newsletter contains information gleaned from various sources on the web, with complete links to the sources cited.  Organizations cited are in no way affiliated with Lakes Environmental Software.

Lakes Environmental Software is a leading environmental IT company which offers a complete line of air dispersion modeling, risk assessment, emissions inventory, and emergency release software as well as training and custom software services.  With satisfied users located around the globe, Lakes Environmental Software will continue to revolutionize the environmental software field.

For more information we invite you to visit our website at:

We are located at:

419 Phillip Street, Unit 3
Waterloo, Ontario N2L 3X2
Tel: (519) 746-5995

All comments and suggestions are welcome.  You can e-mail the editor at:


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