Bill, In the US it is still legal (but not encouraged) for an individual to remove & dispose of small quantities of hazardous materials from his own property without going through all of the permits & reporting that commercial remediation services do. I doubt that there is enough mercury to damage a water treatment or septic system in one MV lamp, but considering all of the lamps casually thrown away, it adds up. If you want to feel better, you might want to run all your water through high quality activated carbon and then place the carbon, gravel, & other solid wastes in multiple plastic bags. Tie off each bag separately and then place in a plastic bucket with a lid. Your waste will more than likely survive shipping and burial in a dump. Better yet would be to call your local sanitation department and ask what they recommend. If it costs over $10 for them to remove it, decide for yourself. I know what I would do. Now about all that rock wool (asbestos) in the attic that I covered with extra fiberglass insulation... Uh, let's not go there! Oh, for all those parent & grandparents out there, you all have seen those cute little shoes for kid that have flashing lights in the heels? Guess what the electrical switch is. Yep, a nice little bubble of mercury! Worn down heels can release it in a child's house. These shoes may be cute, but they aren't harmless! Mike Wise William Vannerson wrote: > Mike wrote: > >>>It looks like my professional degree from the Colorado School of Mines in Hazardous Materials Management might be useful after all. <<< > > Mike, some web sites mention special disposal requirements for broken thermometers and thermostats, both containing elemental mercury. Should special disposal consideration be taken with the water and/or the gravel in this situation? > > Bill Vannerson > > ------------------------------------------------------------------------- > This is the apistogramma mailing list, apisto@listbox.com. > For instructions on how to subscribe or unsubscribe or get help, > email apisto-request@listbox.com. > Search http://www.digital.com for "Apistogramma Mailing List Archives"! ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://www.digital.com for "Apistogramma Mailing List Archives"!