Proposed Reservoir in Disused Clay Quarry
South West Water had proposed to turn a disused clay quarry in Cornwall into a public supply reservoir and required an accurate volume estimate and bathmetric profile of a resource to determine its suitability. We assessed the waterbody using a combination of boat-based sonar and land-based levelling survey. Integrating these data with GPS, we produced contour plots and wire frame 3D models. Surface mapping software and volume drawdown curves quantified the resource at any height above Ordnance Datum, giving accurate predictions of resource availability at various drawdown levels. This allowed the company to accurately assess the value and viability of the resource.
