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TERRADON Corporation offers a wealth of engineering expertise that benefits the energy industry. The company maintains a multi-disciplined team of professionals who are backed up by experienced support personnel.

In addition to primary engineering tasks such as pad and impoundment design, TERRADON engineers and surveyors are experienced in: haul road design, bridge and culvert crossing design, water and wastewater treatment, hydraulic engineering, geotechnical investigations, landslide and slip correction design and future development planning.

Service Offerings

  • Wetland Assessments/Delineation
  • Emergency Response Plans
  • Environmental Site Assessments/Audits
  • Environmental Remediation
  • NEPA Compliance
  • Storage Tanks/AST & UST
  • Impoundment Stabilization and Closure
  • SPCC Planning/BMP Planning
  • OLS Permits
  • USACE Permitting - 401/404/ANS
  • NPDES Permitting for Pipeline - New Routes/Existing Modified
  • Storm Design for Resized Culvert Permit Modifications
  • Test Borings/Test Pit Excavations
  • Monitoring Well/ Piezometer Installation
  • Soil and Rock Logging/Sampling/Testing
  • Landslide Analysis/Remedial Design
  • Stability Analysis
  • Retaining Structure Design
  • Earthen Dams
  • Foundation Design
  • Deed Research
  • GPS Control Surveys
  • Boundary Surveys
  • Topographic Mapping
  • Well Plats
  • Construction Stakeout
  • As-built Surveys
  • Permitting Experience

    TERRADON has assisted numerous clients with wetland and stream assessments, wetland delineations and obtaining the necessary wetland permits from regional authorities and U.S. Army Corps of Engineers (401/404). If necessary, TERRADON can also prepare mitigation plans to address mitigation that may be required due to impacts to streams or wetlands.

    TERRADON also obtains the necessary National Pollutant Discharge Elimination System (NPDES) permit required for projects. This could include preparation of a Stormwater Pollution Prevention Plan (SWPPP), preparation of a Groundwater Protection Plan (GPP), stormwater sampling and reporting along with regular inspections.

    Environmental Specialists from TERRADON are experienced in obtaining NPDES permitting for pipelines for both new routes and modifying existing permits, and with storm design for re-sized culverts permit modifications.

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