  SEQ CHAPTER \h \r 1 CONTACT REPORT

Persons Calling:	Keith Barnett and Steve Silverman

U.S. Environmental Protection Agency

OAQPS/SPPD and OGC

919-541-5605

Person Called:	Hector Ybanez

Holcim (US) Inc.

Date of Contact:	October 22, 2010.



Contact Summary:        

Steve and I called Hector to discuss the issue he and others had raised
about the weigh system calibration requirements in the Portland Cement
NESHAP.  Hector explained the clinker reconciliation procedures used at
Holcim plants, and the method used to determine the amount of feed
material.  From this conversation it appeared to the EPA preventatives
that this issue was mainly interpreting what was meant by calibration. 
We agreed to address this issue at a later date, but determined it was
not necessary to address it in the NESHAP clarification notice we were
currently preparing.

More information was provided by Hector Ybanez in a 9/17/2010 email that
has been separately docketed          

                                                                        
                        

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Confirmation: I confirm that the information above is __ correct ___
correct with the changes noted above.

Signature: ___________________________________

