 From:       Richard Krock <rkrock@vinylinfo.org>                                                                             
                                                                                                                               
  To:         Jodi Howard/RTP/USEPA/US@EPA                                                                                     
                                                                                                                               
  Date:       09/28/2010 09:59 AM                                                                                              
                                                                                                                               
  Subject:    Vinyl Institute Updated Concentration Data Base for PVC Resin                                                    
                                                                                                                               





Dear Ms. Howard,

Late last week it came to my attention that I incorrectly used PolyOne’s
original resin test data submittal reported in pounds per day (dry) as
their concentration data for the Vinyl Institute’s September 16, 2010
submission of its Concentration Data Base.  I received PolyOne’s resin
concentration data for their two plants last Friday and I have replaced
the mass data with the correct concentration data  in ppm.  Please use
this version of the VI’s spreadsheets for any future estimations or
determinations in establishing the PVC MACT rule.  Please do not
hesitate to contact me with any questions.  Thank you for the
opportunity to submit this corrected information.

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 PVC Industry Resin
Concentration Data Aggregation for EPA 09-28-10.xls)