Document ID: EPA-HQ-OAR-2002-0051-1849
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2006-12-20T05:00Z

MEMORANDUM

SUBJECT:	Summary of Cement Kiln Permit Data for Mercury

FROM:	Mike Laney, RTI

		Keith Barnett, EPA

TO:		Docket Number OAR-2002-0051

DATE:		September 6, 2006 (Revised December 6, 2006)

State permit limits for mercury emissions for existing portland cement
kilns are summarized in Table 1. Permit limits on a pound of mercury per
ton of clinker production are presented in Table 2. Clinker production
in Table 2 represents reported 2004 kiln production capacity.

Based on contacts with the plants and State agencies listed here we
could find no situation where any facility was required to take specific
actions to reduce mercury emissions to meet these permit limits.  Note
that a lower permit limit for Lafarge in Alpena, MI, was overturned in
court (see docket entry of Michicgan Court opinion).