MEMORANDUM

DATE:   August 6, 2010

FROM:  Keith Barnett, EPA/OAR/OAQPS/SPPD/MMG

TO: Portland Cement Docket EPA-HQ-OAR-2002-0051

SUBJECT:   Incorporation by reference of Docket EPA-HQ-OAR-2007-0877,
Standards of Performance for Portland Cement Plants  

Docket EPA-HQ-OAR-2007-0877 contains information that is relevant to the
Portland Cement NESHAP rulemaking and Docket EPA-HQ-OAR-2007-0877 is
incorporated by reference into this docket EPA-HQ-OAR-2002-0051.

