recycle as silver. there are lots of companies that will take them since they are silver heavy. mark the container as "recycle" that will get you out of RCRA for a while. If you plan to "dispose" of them they are RCRA wastes, and you have a time limit on it, and need a EPA ID number and etc etc etc etc. RECYCLE or BE SORRY
Contact the state haz waste department.. they always fail TCLP on silver. Don't depend on someother department to tell you otherwise.