NEI can provide complete professional services for all our clients' surveying requirements, including topographical data collection, boundary surveying, project layout and as-built verification. Our experienced personnel can assist in all phases of field surveying, from initial planning and property line location/establishment, field staking of proposed improvements and final measurement of completed projects. Our staff can provide assistance in the following specific areas:

Boundary Surveying

• Commercial and industrial tracts, including both urbanized and rural areas
• Highway and roadway layout, right-of-ways, easements
• Drainage, building line and property setback lines
• Map, deed and property record research
• Property surveys and plats for land transactions and their proper recording
• Oil & gas well locations and elevations
• Survey calculations and lot layout

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Topographic Surveying

• topographic surveys for computer aided plotting
• Exterior and interior topographic surveys
• Shoreline and coastline surveys consistent with the requirements of the US Army Corps of Engineers (USACOE), the Texas General land Office (GLO) and the Texas Parks and Wildlife Department (TPWD)
• Municipal and County mapping, including streets and roadway rights-of-way, utility systems, drainage ways
• and property ownership
• Stockpile and pit surveys for soil volume calculations

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Construction Surveying

• Equipment, piping, construction leveling, dimension control and verification
• Staking building foundations, column lines, refinery construction, curb and gutter, highway work, fences, water and sanitary utility lines, drainage improve
• improvements, telephone and power conduits, pipelines and other construction and improvements
• Excavation and capping of waste containment cells

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Additional Surveying Capabilities

• Location and documentation of benchmarks and triangulation monuments from data of the U.S. Geological Survey (USGS), National Geodetic Survey (NGS), National Oceanic and Atmospheric Administration (NOAA), Texas Department of Transportation (TXDOT) and U.S. Coast and Geodetic Survey (USC&GS)
• Establishment of horizontal and vertical control networks utilizing State Plane Coordinate System or Universal Transverse Mercator Grid
• Determination of true bearings utilizing solar and Polaris observations
• Elevation verification and certification for the National Flood Insurance Program
• GIS/LIS Control System.

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Personnel and Equipment
Services of a two, three, or four person crew with technical support and assistance can be provided as required. Necessary equipment, supplies and transportation can also be furnished. All field vehicles are equipped with cellular phones.

NEI utilizes the most advanced equipment and procedures for field data collection and reduction. "Topcon" electronic total station instruments are used consisting of an infrared distance meter and a one second electronic theodolite. Each total station is equipped with a field data computer. The data collectors interface with IBM compatible computers to transfer information to either AutoCAD or Intergraph Microstation drawing files to establish a network for horizontal and vertical control. The process is used for collection of topographic data for base mapping, development of design drawings, construction staking and as-built verification.

NEI utilizes the most advanced leveling equipment, Wild-Heerbrugg NA2002 Electronic Level, used for vertical control with near second-order precision consistent with National Oceanic and Atmospheric Administration (NOAA) standards. This instrument obtains precise electronic readings from a bar-coded rod and downloads the information to an IBM compatible computer. Automatic levels with optical micrometers are also used for localized elevation measurements