Ecological Sciences

Finding balance… Between business objectives and environmental impact

Our ecological sciences practice delivers comprehensive services that address the wide range of ecological issues that may confront your project, backed by extensive experience working with regulatory agencies.

Our multidisciplinary team includes terrestrial and aquatic ecologists, threatened and endangered species experts, and agency-approved surveyors of federally and state-listed plants and animals. Working together, we can determine the presence or absence of protected species, offer measures to provide mitigation solutions and work with regulators to resolve conflicts.

The ecological expertise to advance your project

Our wetland scientists and permitting specialists can recommend an effective permitting strategy based on the results of a wetland or stream delineation, regulatory requirements, and your objectives.

Our in-house ecosystem restoration specialists employ a multidisciplinary approach to producing ecological uplift and improvements in aquatic life use. Our experience shows a strong emphasis on natural channel stream design, watershed-based restoration, and on-site mitigation projects.

Our aquatic ecology services can help you meet regulatory requirements pertaining to Section 401 and 404 permits, functional assessments, stream and wetland mitigation, NPDES permits, alternatives analysis, impact studies, and ecological risk assessments. These services can lead to variances to permit requirements that may help reduce costs.

Your CEC Expert:

Ray Ewing

Ray Ewing

Ecological Sciences Lead

(412) 249-2363

Read Bio

Ray Ewing

Mr. Ewing is an ecologist and principal at CEC. He has more than 15 years of experience in managing and conducting ecological surveys. As CEC’s corporate ecological practice lead, Mr. Ewing is responsible for assisting and coordinating the firm’s technical capabilities, maintaining consistency and quality of work product, and identifying, acquiring and developing necessary personnel across the company. Mr. Ewing has been with CEC since 2010.

Areas of Expertise

  • Wetland and Stream Delineations
  • 401/404 Permitting for Wetland and Stream Encroachments
  • Jurisdictional Determination (JD) Meetings with Regulators
  • Wetland and Stream Functional Assessments
  • Alternatives Analysis
  • Cumulative Impact Assessments
  • Mitigation Design, Construction Oversight, and Success Monitoring
  • Mitigation Construction Bid Documents
  • Design of Wetland Treatment Systems
  • NEPA Environmental Impact Statements & Assessments

  • Stream and Wetland Restoration Design
  • Site Selection and Evaluation
  • Fluvial Geomorphic Assessments
  • Natural Channel Design
  • Wetland Water Budgets
  • Riparian and Wetland Planting Specifications
  • Mitigation Planning
  • Landscape Restoration
  • Geomorphic Restoration
  • Agronomic Evaluations
  • Revegetation of Disturbed Landscapes
  • Invasive Plant Management
  • Watershed Planning
  • Regulatory Permitting
  • Aquatic Biological Monitoring (Fish and Benthic Macroinvertebrates)
  • Geographic Information and Database Management Systems
  • Technical Assistance to Mitigation Bankers
  • Erosion Prevention and Sediment Control Specifications
  • Design-Build Services
  • Construction Specifications and Bid Packages
  • Construction Management and Quality Assurance
  • As-Built Drawings and Certification Reports

  • Surveys for Plants, Bats, Birds, Fish, and Mussels
  • Rare Plant Surveys, Mitigation, and Agency Coordination
  • Habitat Assessments
  • Conservation and Mitigation Plans
  • Bat Habitat Assessments
  • Bat Mist-net and Harp-trap Surveys
  • Mine/Cave Portal Surveys
  • Radio Telemetry and Tracking
  • Acoustic Detection and Analysis
  • Federal and State Agency Consultation
  • Habitat Mitigation
  • Habitat Conservation Plans (Section 10)
  • Biological Assessments (Section 7)

  • Fisheries Surveys
  • Benthic Macroinvertebrate Surveys
  • In-House Benthic Laboratory for Benthic Processing and Identification
  • Aquatic Functional Assessment
  • Water and Sediment Sampling
  • Bathymetric and Hydrographic Surveys
  • Side- and Sector-Scan Sonar
  • Freshwater Mussel Surveys
  • Rare Aquatic and Wetland Plant Surveys
  • Passive Treatment Systems (Including Wetland Treatment, AMD Treatment)
  • Bioaccumulation Studies
  • Biofouling Organism Monitoring
  • Chemical Sampling & Analysis
  • Clean Water Act Section 316 (a) (b)
  • Dye & Flow Studies
  • Environmental Impact Studies
  • Habitat Evaluations
  • Pond & Lake Management
  • Search & Recovery
  • Sediment Core Sampling
  • Sub-Bottom Profiling
  • Thermal Studies

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Ecological Sciences overview.

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Who We Serve

Multi-disciplined Market Groups are derived from our practices to strategically focus on the challenges and drivers of the manufacturing, mining, oil & gas, power, public sector, real estate, and solid waste markets.


We provide a comprehensive array of engineering and environmental services to assist you…

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For decades, we’ve helped operators solve challenges and keep their focus on continuing operations…

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Oil & Gas

Our clients rely on our expertise to navigate ever-evolving federal, state, and local regulations and design on challenging sites…

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For more than 20 years, our team has supported electric utilities throughout the full project lifecycle…

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Public Sector

Public officials and agencies rely on our diverse scope of services to deliver positive results for their local communities…

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Real Estate

We provide comprehensive services for the full lifecycle of real estate…

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Solid Waste

We bring unrivaled resources and expertise to help you handle the most complex waste management challenges…

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Ecological Sciences In Action