Broadpath Landfill: Difference between revisions
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==Description== | ==Description== | ||
The quarry is excavated into Triassic age Budleigh Salterton Pebble Beds. These constitute a major aquifer, although due to the morphology of the deposit, locally they are not water-bearing to any significant degree. The Pebble Beds are underlain by clays of the Keuper Marl. | |||
The landfill is constructed as a containment facility, utilising the underlying clay materials as the principal barrier. The lining system is augmented with a flexible membrane liner of HDPE on the base and the lower part of the sidewalls. The sidewalls are steeply graded and require buttressing to enable construction within the 30m deep quarry void. | The landfill is constructed as a containment facility, utilising the underlying clay materials as the principal barrier. The lining system is augmented with a flexible membrane liner of HDPE on the base and the lower part of the sidewalls. The sidewalls are steeply graded and require buttressing to enable construction within the 30m deep quarry void. | ||