At EST, we are responsible for helping municipalities provide effective production, filtration and quality control for community water systems, starting at the source and extending throughout the treatment process. Our team has extensive experience in the design and rehabilitation of water and wastewater facilities and water and sewer line design. From designing new facilities to modernizing existing ones, our team can partner with clients to provide clean, safe water and sewer services to our clients.


  • Master Drainage Plans
  • Hydraulic/Hydrologic Modeling
  • Flood Plain Management
  • Flood Plain/Floodway Mapping
  • Flood Plain Mitigation Evaluations
  • Subdivision/Land Development
  • Detention Pond Designs
  • FEMA Submittals
  • Watershed Modeling
  • ODEQ Permitting
  • Flood Plain Development Impact Analysis
  • Community Watershed Integration
  • Storm Sewer/Road Culvert/ Open Channel Design
  • Wetlands/Riparian

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