GWP Consultants - Surveying. GWP offers a complete in-house surveying capability fully integrated with projects in site investigation, planning and design, using GPS, robotic and targetless surveying equipment. All surveys are processed using three-dimensional data in McCarthy-Taylor's Land Survey System (LSS). GWP has many years of experience in producing three-dimensional Digital Terrain Models (DTMs). Surveying and related services: topographical surveying and setting out of quarry excavations, plant, tips and lagoons, stockpiles, borehole and piezometer locations and restoration levels; setting out and surveying for engineered clay liners and caps in landfill cells and producing Construction Quality Assurance (CQA) drawings; surveying geological and geotechnical features such as faults, bedding planes, discontinuities, joint inclinations, weathering surfaces and base of overburden and rock block sizes; setting up control targets for face profiling, blast monitoring and for photogrammetry; computation of volumes of mineral, overburden, total excavation, tips and stockpiles; computation of placed waste volumes and available void space with modelled pre-settlement waste levels in landfill cells. Survey management services: single point of contact for the procurement of surveying services using a pool of contractors meeting our high standards; standardisation of survey models, drawings and presentation styles to avoid inconsistencies between surveys; customised database system for maintaining a central record of all surveys and survey products for any site. Accurate record keeping prevents unnecessary repeat surveys and allows any survey model, drawing or file to be instantly accessed; three-dimensional models, visualisations and plans of high data integrity with all topographical features defined. A single up-dated model is maintained for each site.