From:       Richard Krock <rkrock@vinylinfo.org>                                                                             
                                                                                                                               
  To:         Jodi Howard/RTP/USEPA/US@EPA                                                                                     
                                                                                                                               
  Date:       09/16/2010 05:29 PM                                                                                              
                                                                                                                               
  Subject:    Vinyl Institute Concentration Data Base for EPA PVC MACT Rule                                                    
                                                                                                                               





Dear Ms. Howard,

During our August 24, 2010 meeting at your office, the Vinyl Institute
displayed a data base that utilized concentrations from submitted data
per the Section 114 Request.   EPA expressed an interest in obtaining
our data base.  Please accept our apologies for the late submission of
this information, but our members wanted to be sure the information was
properly vetted before it was submitted for your consideration and use.
The attached letter provides additional support explanation about the
data base as well.  We trust that EPA finds this information of
interest.  Please do not hesitate to contact me with any questions that
may arise.

Regards,



Richard Krock
Technical Director

The Vinyl Institute
1737 King Street Suite 390
Alexandria, VA 22314
Direct:  571.970.3392
Mobile:  571.216.4474
Fax:  571.970.3271
Email:  rkrock@vinylinfo.org
http://www.vinylinfo.org
http://www.vinylindesign.com(See attached file: VI Letter to EPA
Conveying PVC MACT Resin Test Concentrations 9 16 10.pdf)(See attached
file: Industry Wide Concentration Data Aggregation 09 16 10.xls)
