SEAM (Sewer Emission Assessment Model)

For estimating emissions of VOCs and HAPs from wastewater collection systems, SEAM is the most reliable and easy-to-use software available. Developed for the Chemical Manufacturers Association, SEAM is invaluable for responding to reporting requirements under regulations such as the Clean Air Act Amendments and SARA. No other software allows you to easily combine the complex, branched networks of a collection system. The software makes it easy to pinpoint locations of high emissions for further investigation or implementing control measures.

SEAM is a sub-component of software for predicting the fate of contaminants in wastewater collection and treatment systems.

SEAM Processes

Process Drain
Water Seal
Open Reach
Closed Reach
Open Drop Structure
Closed Drop Structure
Lift Station
Air Treatment Device


Save time: SEAM eliminates the need to develop spreadsheet calculations of complex mass transfer and mass balance equations in process units. The results is faster simulation and minimized risk of errors in formulae. Export results to spreadsheets for additional processing.

Save Money: Save by reducing the number of costly laboratory analyses for monitoring programs. And, your time is worth money, so use it wisely... with SEAM.

Technical Support: Free support on software issues and economical cost-effective process applications support.

No Annual Updates or license fees.

Training courses for SEAM are available. Contact us for details.

Main steps in SEAM:

  • Process Configuration: Drop process icons on the drawing area
  • Process Connection: Connect the process flows with recycles and multiple flow splits
  • Process Data Input: Specify the size and characteristics
  • Model Run: Produce the output on screen, in hard copy or electronic file

Here are some reasons you should be using SEAM now:

Easily configure and simulate emissions from a branched network


Identify locations where highest emission rates occur


Evaluate factors causing high emission rates


Readily available parameters characterize the sewer process components

Extensive database of chemical compounds