Complex sentence: The area became notorious for its sinkholes and unstable ground conditions due to its high proliferation of Dolomite rock formations which eroded with the lowering of the water table by extensive underground mining and its continuous pumping operations.
Split into simpler sentences: The area became notorious for its sinkholes and unstable ground conditions. This is as a result of a high proliferation of Dolomite rock formations which eroded with the lowering of the water table by extensive underground mining and its continuous pumping operations.