Chuck, Your best bet is to perform a TCLP (Toxic Chelate Leachate Procedure) of a representative sample at an Environmental Lab (check for EPA certification) to see if the regulated heavy metal concentration is in excess of the permissible limit. If you find that your boards , when ball milled and soaked in acetic acid, don't leach land-banned concentrations of regulated heavy metals, they would not be considered a hazardous waste. Alternately, If the quantities are sufficient and the gold metal thick enough, a metal refining house may take all your waste and return to you as credit the difference between the refining charge and the value of the gold. Ron VandenDolder Telaxis Communications SouthDeerfield, MA. -----Original Message----- From: Chuck Garth [mailto:[log in to unmask]] Sent: Thursday, June 28, 2001 2:13 PM To: [log in to unmask] Subject: [TN] Circuit Board Disposal I have to dispose a large quantify of circuit boards. Mostly FR2, some HASL,bare copper, gold flashing. Can any one give me the proper procedure for disposing of these boards. I understand that the dumpster may cause me problems with environmental people. Chuck Garth --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------