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Copper in Roof Runoff


I'm involved in a study of heavy metals contained in runoff from
buildings that have copper roofs, flashing, gutters, or downspouts.  The
effort is being done for the Palo Alto Regional Water Quality Control
Plant at the south end of San Francisco Bay.  

Have you seen published reports or do you know of unpublished studies
that have data on copper in runoff from buildings?  If so, can you send
us the internet address, author's contact info, or a literature cite?

Thanks in advance for your help.


Thomas Barron, PE
Professional Engineer
3351 Beechwood Drive
Lafayette, CA 94549
(925) 283-8121