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Dept hent is bstancekontrol <br />Edwin F, Lowry, Director <br />400 P Street, 4th Floor, P.O. Box 806 <br />Avinston 9. Hit Sacramento, California 95B12-0806 <br />Gray Davis <br />Agency Secretary Go <br />California EnvironrnWal <br />Protection Agency <br />November 10, 1999 <br />Ms. J ane Martin <br />Area Environmental Compliance Coordinator <br />Pacific Area <br />United States Postal Service <br />499 Oyster Poiret Boulevard <br />South San Francisco, California 94099-0421 <br />RECYCLING OF METAL SHAVINGS FROM BRAKE REPAIR ACTIVITIES <br />Dear Ms. Martin: <br />Thank you for your October 22, 1999 letter requesting that the California Department of <br />Toxic Substances Control (D SC) comment on the recycling of metal shavings <br />generated from brake repair activities at vehicle maintenance facilities operated by the <br />United States postal Service (LISPS). <br />Background <br />According to your letter; USPS vehicle maintenance facilities, situated throughout the <br />State of Califomia, perform brake repair activities using brake lathes to machine brae <br />dfs, The cristal shavings from those operations are recycled by a Metal recycler. <br />Your leiter .states that, to your knowledge, 1he recycled brake shavings are free of <br />contaminants" and that the metal shavings pare larger [than] 109 micrometers and <br />therefore are not a fine powder," Curing an "audit$' performed by a Certified Unified <br />Program Agency l A), one of your facilities "was cited for the practice of recycling <br />the metal shavings,' The CUPA inspector required that the shavings be characterized, <br />and 'as would be expected," you said, "the shavings were found to be high in <br />chromium.' Your letter specifically requests that DTSC comment on the correct <br />disposal and recycling method for the aforementioned metal shavings. <br />Printed on Recycled Paper <br />