Register October 2007 No. 622
APPENDIX XIII
MERCURY BEARING WASTES THAT MAY BE PROCESSED
IN EXEMPT MERCURY RECOVERY UNITS
These are exempt mercury-bearing materials with less than 500 ppm of ch. NR 661 Appendix VIII organic constituents when generated by manufacturers or users of mercury or mercury products. 1. Activated carbon
2. Decomposer graphite
3. Wood
4. Paper
5. Protective clothing
6. Sweepings
7. Respiratory cartridge filters
8. Cleanup articles
9. Plastic bags and other contaminated containers
10. Laboratory and process control samples
11. K106 and other wastewater treatment plant sludge and
filter cake
12. Mercury cell sump and tank sludge
13. Mercury cell process solids
14. Recoverable levels of mercury contained in soil
