CAMBBA the consortium constructing the new M6 Tool Project, has worked closely with the Environment Agency and the management team at the Belfry Golf Club to ensure that the construction activities for the new road have a minimal impact on the golf course.

One such issue was the protection of the watercourses within the golf course. CAMBBA identified that during peak rainfalls the watercourses became contaminated by silt from local farmlands and that construction works could contribute to the silt loading in the streams. Consequently in agreement with the Belfry Management a number of measures were put in place to minimise the impact.

For example,

	Worst case scenario calculations were made relating to the amount of run-off from the site
	Lagoons were constructed to contain and treat this volume of water.
	Flocculent treatment plants were set up at the lagoons to cause fine particles to settle out during flow through a series of spillways and weirs prior to discharge to the watercourse.
	Treatment plants were set up in the Belfry grounds next to the inlets to the main lakes and the clarity of the water improved dramatically.
	Daily monitoring of the watercourses at various locations was undertaken and the results recorded to establish the performance of the measures put in place.

Details of these and other siltation control measures used throughout the M6 Toll are to be the subject of a FASTTRACK project for the Department of the Environment Fisheries and Rural Affairs (previously the DETR) which will be published to the parent companies of the CAMBBA group in spring 2002 and may become industry guidelines.

Belfry Brook between the M6 Toll and the A446

The temporary weir system from Balancing Pond 416, outlet into Belfry Brook and Balancing Pond 420