California environmental regulators are considering rolling back the state's hazardous waste disposal rules, potentially ...

This image shows the height of the Upland Disposal Facility, or toxic-waste landfill, planned for Lee. Courtesy of the ...

If the landfill is forced into a soft closure by ... Once excavation is complete for Cell 8, two feet of clay liner will be placed in six-inch lifts and compacted. A poly liner material will ...

Environmentalists: Water draining from beneath a lined landfill containing coal ash is nevertheless contaminated and threatens the Des Moines River ...

Landfill President Louis DeNaples signed a consent ... that it is installing liners and shallow collectors, that it added a product to a concentrate tank to reduce hydrogen sulfide emissions ...