From: Brian Thomas
      Printed Circuit Alliance (PCA)
      Sigma Circuits, Inc.
      408-727-9168 x 106
      408-727-8859 fax
      
Greetings:
Local area manufacrures in the San Jose, CA area are working on a 
cooperative effort with the Bay Area Air Quality Management District 
(BAAQMD) developing a permitting handbook and Chapter for the Printed 
Circuit Industry.  We would anticipate that it will eventually be 
adopted for the entire state of California.  We are collecting 
information regarding emissions from manufacturing processes.  Of 
particular interest are VOC emissions, either calculations, estimates 
or stack measurements.  We also need information on other emissions 
including acids, formaldehyde, and ammonia.

The most difficult area to resolve at this point are resist 
strippers.  Current BAAQMD methodology assumes that all of the 
organics will be emitted including monoethanolamine.  

We plan to include estimated emission rates in the permitting 
handbook.  

If you have any information that may be of assistance in this effort 
please e-mail me or give me a call.

Regards,
       Brian Thomas