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galvanized coatings

Hello All

We are currently working with a company that cleans galvanized steel 
parts prior to powder coating.  The cleaning line has alkaline 
clean, phosphoric acid, and polymer seal stages.  
The company has lead problems in their wastewater.  

Is anyone aware if the galvanized coating has lead as a minor 
constituent.  I have been unable to find out.

Thanks in advance

Greg Newman
NC Division of Pollution Prevention 
and Environmental Assistance
PO Box 29569
Raleigh, NC  27626-9569
Tel: (919) 715-6526
Fax: (919) 715-6794
Email: Greg_Newman@owr.ehnr.state.nc.us