Frequent Questions

The hazardous waste listing for F006 includes wastewater treatment sludge from electroplating operations.  What types of electroplating operations are included in this listing?

The F006 listing includes the wastewater treatment sludges from the following processes: (1) common and precious metals electroplating, except tin, zinc (segregated basis), aluminum and zinc-aluminum plating on carbon steel; (2) anodizing, except sulfuric anodizing of aluminum; (3) chemical etching and milling, except when performed on aluminum; and (4) cleaning and stripping, except when associated with tin, zinc, and aluminum plating on carbon steel. Accordingly, the following processes are not included under the F006 listing: chemical conversion coating, electroless plating and printed circuit board manufacturing. However, wastewater treatment sludges from printed circuit board manufacturing that include any of the processes which are within the scope of the F006 listing (e.g., chemical etching) would be regulated as a F006 waste.  Electroplating operations do not include electrowhinning and electrofinishing, electroless plating, chemical conversion coating, and printed circuit board manufacturing (51 FR 43350; December 2, 1986).  Also, wastewater treatment sludges from the chemical conversion coating of aluminum are listed as F019 hazardous waste. See FR 43350, 43551: December 2, 1986. 

Additional guidance regarding the applicability of the F006 listing is available in the following documents: 

Memo, Dellinger to Zirch; February 12, 2004 (RCRA Online #14691)
Memo, Bussard to Pucci; August 18, 1998 (RCRA Online #14482)
Monthly Call Center Report Questions; June 1997 (RCRA Online #14108
Memo, Bussard to Dufour, January 21; 1997 (RCRA Online #14017)
Memo, Shapiro to Rhodes; July 12, 1994 (RCRA Online #11851)
Memo, Lowrance to Duprey; January 15, 1992 (RCRA Online #11663)
Memo, Clay to Schafer; June 7, 1991 (RCRA Online #14322)
Memo, Lowrance to Hopkins; August 15, 1990 (RCRA Online #11551)
Memo, Barnes to Evans; August 21, 1989 (RCRA Online #11458)
Memo, Lowrance to Meeks; April 14, 1988 (RCRA Online #11340)
Memo, Williams to Lovgren; January 11, 1988 (RCRA Online #11315
Memo, Straus to Schiffman; July 28, 1987 (RCRA Online #11269)
Memo, Abrams to Duncan; May 5, 1987 (RCRA Online #11244

These documents are available at the following URL: https://yosemite.epa.gov/osw/rcra.nsf/how+to+use?OpenForm
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