Lafarge Aggregates Ltd has permission to extend its existing quarry at Knobbs Farm, Somersham. The site is located to the north-west of the village of Somersham, Cambridgeshire, centred on TL 365 790. The permitted area is situated immediately to the west of the existing quarry. The land in the present evaluation represents Phases 2 and 3 of the seven proposed phases of work and comprised a total area of 1995 square metres of trial trenches. Phases 2 and 3 are located within one large field covering approximately 8.5 hectares of former arable land. This was carried out between the 28th August and 4th September 2001.