In other areas, smaller sections of ceiling, several yards across, have caved in, dumping piles of debris, wire and ceiling tiles.
There is currently little year-round rain in this part of Egypt, but there are occasional flash floods that hit the valley, dumping tons of debris into the open tombs.
The town study showed that dumping of construction and demolition debris had far exceeded estimated amounts, reducing the lifetime of the 1996 expansion by 11 years.
The new rule ignores the finding of EPA's own scientists that the practice of mountaintop removal and subsequent dumping of mining sludge and debris suffocates rivers and streams, contaminating the drinking water of downstream communities and decimating fish populations.
Across the state, the hurricane generated an estimated 660,000 dump trucks of debris.
The decision came from the case of James Flagg, 62, a 29-year Newark sanitation employee fired after being convicted of illegally dumping constructing debris, something his supervisor instructed him to do.
An expeditious and disruptive form of surface mining, it involves blasting off the tops of mountains and dumping the debris in valleys and streams below.
Mountaintop removal, which provides a mere 7percentt of the nation's coal, is done by clear-cutting forests, blowing the tops off of mountains, and then dumping the debris into streambeds -- an undeniably catastrophic way of mining.
So Tennessee Sen. Lamar Alexander has introduced legislation in the Senate that would prevent coal companies from blasting the tops off of Appalachian Mountains and dumping the debris into mountain streams, a hideous mining method called "mountaintop removal" that is, unfortunately, widespread in West Virginia and eastern Kentucky.
At Altura, in the Highlands, a landslide dumped 200 tonnes of debris on the A82 between Spean Bridge and Invergarry.
