If given the go-ahead, the application will see the construction of a slurry analyser, which the company say will help make better use of raw materials and improve efficiency.
Westbury Works manager Jim Cross said: "Following our successful application to extend our chalk quarry the new analyser will help us to make the most of our resources.
"This is part of our on-going investment programme at Westbury which is improving the efficiency of our operations and reducing our impact on the environment."
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