The interlinked public water system has abstraction boreholes at Westbury (the Wellhead), Upton Scudamore and Warminster.   The source protection zones for Westbury Wellhead and part of Upton Scudamore are here:

1997 WCC diagram showing how the water source protection zones are threatened

In 1993, Wiltshire County Council had a main road constructed over the Upton Scudamore groundwater zone. It can be seen on the lower left side of this map.   This new section of the A350 is on a high embankment.

No particular precautions were taken against the risks of water pollution.   An accident is waiting to happen.

This demonstrates the fundamentally indifferent attitude of Wilts CC towards environmental protection.

Wiltshire County Council is the local highway authority and, simultaneously, also the local planning authority, but WCC is also acting as though it is a developer, with our overall environment way down its list of priorities.

By wanting to build an embanked main road over Westbury Wellhead, the County Council is doubling the risk.

It is against the Environment Agency's overall policy of opposition to development within a ground-water zone which serves a public drinking water source.

There are no large reservoirs in this area.   The water supply relies on the source under Westbury Escarpment. When it's gone, it's gone.