Eastern Technical Associates
is recognized as the authority in opacity consulting. Our experience and extensive knowledge of
opacity issues allows us to provide
a broad scope of services to satisfy
our clients' needs.

Please follow the links below for
more information on ETA's
consulting services:

• Training services
• Visible emission site plans and audits
• VEO form audits
• Visible emission observations (smoke readings)
• Visible emission certification program audits
• Opacity litigation support

MANY SOURCES DISCHARGE visible emissions into the atmosphere. ETA's trained observers employ EPA reference methods to determine the opacity of the emissions. ETA is nationally recognized as the prime source of opacity monitoring using visual and instrumental methods.

ETA's opacity monitoring services:
• Provide high quality visible emissions monitoring services for sources
• Determine source compliance status
• Support permitting and performance testing
• Detect problem sources
• Evaluate condensing and reacting plumes
• Evaluate sources and gather evidence for litigation
• Provide night scope data analysis and videotapes

ETA staff members have an unparalleled knowledge of VE observation techniques for varying sources and varying conditions, problem solving, and troubleshooting. In addition to being Method 9 certified, ETA's staff is trained in the use of state-of-the-art instrumentation and computer software that determines a correct reading position. This can mean substantial savings for the client.

In addition to instumental and human VE observations, ETA can provide a service that other firms do not: computer-digitized plume analysis. The utilization of high resolution video imagery allows ETA to perform analyses of plume condensation/reaction in real time. This helps clients resolve countless difficult plume observation and control scenarios.

Contact ETA

If your company, agency, or legal staff is interested in ETA's consulting support and services,
please contact Mike Lunsford or Jody Monk at (919) 878-3188.