Nuclear & Fossil Fuels

Environmental Permitting Services

Site Selection Analysis and Due Diligence

Critical Constraints Analysis and Issues Identification

Permit, Application Development and Technical Support

Agency Consultation and Coordination

Expert Testimony and Technical Support

Environmental Regulatory Expertise

Clean Water Act Sections 316(a) and 316(b)

CWA Sections 401, 402, 404 and 408

National Pollution Discharge Elimination System Permits

Nuclear Regulatory Commission Regulatory Guidelines

Endangered Species Act

Coastal Zone Management Act

Rivers and Harbors Act

Bald and Golden Eagle Protection Act

NEPA Process and Documentation

Categorical Exclusion Documentation

Environmental Impact Statements

Environmental Assessments/Finding of No Significant Impact

Agency Consultation and Public Outreach

Mitigation Planning and Monitoring

Environmental Documentation

Third Party Technical Reviews

Environmental Permit Compliance

CWA 316(b) Impingement and Entrainment Surveys

CWA 316(a) Thermal Plume Studies

Fish Identification Stomach and Tissue Sampling and Analysis

Monitoring Designated Critical Habitat (Wildlife Species or Plant Communities)

Freshwater Mussel Monitoring

Mark-Recapture and Survivorship Studies

To see a complete list of our Environmental Permitting & Regulatory Compliance services, click here.

Freshwater and Marine Fisheries Surveys

Fish Collection and characterization

Fisheries Acoustic Studies

Fish Population Studies and Modeling

CWA 316(b) Impingement and Entrainment Surveys



Freshwater Mussel Survey and Mitigation Services

Freshwater Mussel Population Survey and Species Identification

USFWS Qualified Mussel Surveyors

Survey Plan Negotiation and Development

State Approved Mussel Surveyors

Biological Assessments

Salvage, Relocation and Long-Term Monitoring

Scientific Diving Management and Oversight

Navigable Waters Surveys

CWA 316(b) Freshwater Mussel Studies

Section 7 Consultations

Pipeline, Bridge, and Railroad Crossings

Construction Monitoring

Water Withdrawal

Outfall Evaluations

Expert Testimony

Marine and Freshwater Habitat Assessments

Essential Fish Habitat Biological Studies

Submerged Aquatic Vegetation Surveys

Habitat mapping, modeling and hydrologic alteration sutides

Stream rapid Bioassessments

Scientific Diving

Benthic Surveys of Organisms and Sediments

Water Quality Assessments and Monitoring

CWA 316(a) Thermal Plume Studies

Acoustic Hydrology Using Acoustic Doppler Technology

Benthic Surveys

Groundwater Monitoring

Sediment Sampling & Testing

Water Supply Planning And Studies (Quantity And Availability)

Sediment/Dredge Materials Characterization

Contaminated Sediment Assessments

Vibracore Sampling

Section 404 Permitting

Contaminated Sediment Assessments

Dredge Plume Monitoring

Erosion and Sediment Transport Evaluations

Sediment Profile Camera Benthic Surveys

Sediment Sampling, Testing, and Analysis

Dredging and Disposal Analysis and Permitting

Scientific Diving Program

SCUBA Certified Divers

Advanced Diver, Rescue Diver, and Certified Dive Masters

U.S. Coast Guard Licensed Boat Captains

Transportation Worker Identification Credential Security Clearance

Conformance with OSHA 29 CFR 1910.401 Subpart T

Biological Lab Services

Entrainment Sample Identification

CWA 316(a) Thermal Plume Studies

Fish Identification Stomach and Tissue Sampling and Analysis

Freshwater, Estuarine, and Marine Benthic Macroinvertebrates, Algae, and Periphyton, Identification and Analysis

Ichthyoplankton, Zooplankton, and Phytoplankton Identification

Benthic Invertebrates, Algae, and Periphyton Identification

Laboratory Processing, Data Capture and Analysis, Project Reporting and Mapping

Long Term Environmental Monitoring Database Management

Quality Assurance Program

To see a complete list of our Marine & Freshwater Sciences services, click here.

Plant Community Surveys

Botanical and Aquatic Plant Surveys

Plant Community Evaluation and Mapping

Rare, Threatened and Endangered Species

Wetlands Resource Services

Wetland Delineation

Functions and Values Assessments

Stream and Riparian Habitat Assessment and Mitigation

Watershed Evaluation

Plant Community Surveys

Acoustic tools – ARIS/DIDSON, bathymetric surveys, mobile and fixed hydroacoustic monitoring

Hydroacoustic Remote Sensing

Acoustic Doppler Current Profiling



Data Visualization

Complex Database Design, Data Management, and Statistical Analyses

Database QA/QC

To see a complete list of our Remote Sensing & Data Visualization services, click here.

Plant Community Surveys

Over 45 years’ experience with permitting and compliance monitoring for nuclear power stations, fossil fuel plants and industrial facilities throughout the US.

More than 500 major intake and discharge studies for over 40 utility companies and industrial facilities throughout the US including:

CWA 316(a) Thermal and dilution plume surveys of cooling water discharges.

CWA 316(b) Impingement and entrainment surveys for cooling water intake structures.

Biological studies in almost every major watershed in the US including most of the nation’s coastlines, major rivers and estuaries, and long-term

Senior regulatory specialists include a former EPA Region Administrator and two former US Army Corps of Engineers District Commanders, experienced in successfully navigating complex state and federal permit processes.


Our highly qualified scientists have worked together for longer than 25 years, providing high-caliber technical capabilities.

Extensive in-house staff expertise with rare, threatened and endangered species including freshwater mussels, sturgeon, and other species.

The largest specialized biological laboratory facilities for processing freshwater and marine entrainment samples.

Innovative and state-of-the art sampling methods and laboratory procedures provide accurate impact data on proposed Best Technology Available (BTA), and recognized industry leadership in QA/QC provides utilities and industry with accurate data for demonstrating BTA with reductions in impingement mortality and entrainment abundance.

Expert witnesses and peer reviewers for utilities, and public and private developers.