Environmental Permitting Services

Site Selection Analysis and Due Diligence

Critical Constraints Analysis and Issues Identification

Avoidance, Minimization, Mitigation Strategies

Permit, Application Development and Technical Support

Agency Consultation and Coordination

Expert Testimony and Technical Support

Environmental Regulatory Expertise

Bald And Golden Eagle Protection Act

Clean Water Act Sections 401, 402, 404 & 408

Coastal Zone Management Act

Endangered Species Act

Fish & Wildlife Coordination Act

Marine Mammal Protection Act

Magnuson-Stevens Fisheries Conservation and Management Act

Migratory Bird Treaty Act

National Pollution Discharge Elimination System Permits

Rivers and Harbors Act

Wild and Scenic Rivers Act

State and Local Natural Resource Related Regulations

National Environmental Policy Act

US Forest Service Special Use Permits

NEPA Process and Documentation

Categorical Exclusion Documentation

Environmental Assessments/Finding of No Significant Impact

Agency Consultation and Public Outreach

Mitigation Planning and Monitoring

Environmental Documentation

Third Party Technical Reviews

FERC Licensing and Compliance

Support for Recreational/Historic and Archeological Studies

FERC Resource Report Development

Development of Comprehensive Plans

Rare, Threatened and Endangered Species Study Plans and Biological Assessments

Critical Review of Comprehensive Plans, Biological Opinions, and Study Reports

FERC License Compliance Management

Expert Witness Testimony

Instream Flow Assessments

Environmental Permit Compliance

Wetland Mitigation Monitoring

Fisheries Mitigation

Fish and Amphibian Salvage and Relocation

Fish Distribution and Abundance Evaluations

Construction and Post-Construction Monitoring

Erosion and Sedimentation Control Monitoring

Endangered Species Monitoring

Freshwater Mussel Monitoring

Mark-Recapture and Survivorship Studies

Fish Identification, Stomach and Tissue Sampling and Analysis

Quality Assurance Programs

Monitoring For Water Quantity/Quality Concerns

Monitoring Designated Critical Habitat Wildlife Species or Plant Communities

Mitigation Planning and Monitoring

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

Migratory Fish Biology, Behavior, and Restoration

Fish Population Studies and Modeling

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

Section 7 Consultations

Construction Monitoring

Water Withdrawal

Outfall Evaluations

Expert Testimony

Freshwater and Marine Habitat Assessments

Essential Fish Habitat Biological Studies

Benthic Surveys of Organisms and Sediments

Instream Flow Assessments

Aquatic Ecology Assessment

High Resolution Bathymetry

Submerged Aquatic Vegetation Surveys

Stream Redesign (Culvert, Open For Fish Passage)

Habitat Suitability Index Modeling

Habitat Mapping, Modeling and Hydrologic Alteration Studies

Marine Mammal and Sea Turtle Habitat Analysis

Coastal, Estuarine and Marine Ecosystem Surveys

Coastal And Marine Habitat Restoration Planning and Design

Stream Rapid Bioassessments

Scientific Diving

Water Quality Assessments and Monitoring

Acoustic Hydrology using Acoustic Doppler Technology

Benthic Surveys

Water Quality Sampling and Monitoring

Hydrokinetic Energy Site Assessments

Stormwater Sampling

Water Quality Assessment and Modeling

Sediment Sampling & Testing

Sediment/Dredge Materials Characterization

Vibracor Sampling

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

Fish Identification, Stomach and Tissue Sampling and Analysis

Credentialed Taxonomists

Freshwater, Estuarine, and Marine Benthic Macroinvertebrates, Algae, and Periphyton, and 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.

Wetlands Resource Services

Wetland Delineation

Functions and Values Assessments

Stream and Riparian Habitat Assessment and Mitigation

Aerial Photointerpretation and Mapping

Vernal Pool Identification and Documentation

Rapid Bioassessments

Wetland Impact Assessment

Impact Mitigation

Stream and Riparian Habitat Assessment and Mitigation

Watersheds Evaluation

To see a complete list of our Wetlands & Landscape Ecological services, click here.

Habitat Assessment and Wildlife Survey

Habitat Suitability Assessment

Habitat Use Surveys

Presence/Absence and Abundance Surveys for all Taxonomic Groups, including;

Breeding Bird Surveys

Raptor Surveys – Migration, Breeding, and Overwintering

Remote Survey of Marine Species though Aerial Thermographic Imaging

Reptile and Amphibian Surveys

Impact Assessment and Mitigation Planning

Impact Assessment following Permit-specific Requirements

Project-specific Natural Heritage Database Review and Agency Consultation

Risk Assessments

Habitat Restoration Planning

Adaptive Management Plans

Permitting and Regulatory Compliance

Bald and Golden Eagle Management Plans

Impact Mitigation Plans

Rare, Threatened and Endangered Species

Direct Experience Conducting Surveys for a Wide Range of State and Federally Listed Species

Qualified Surveyors for a Variety of Federally Listed Species

Federal ESA Section 7 and Section 10 Consultation

State ESA Consultation and Compliance

Habitat Conservation Plans (HCPs)

Safe Harbor Agreements

To see a complete list of our Wildlife Sciences services, click here.

Remote Sensing and Monitoring

Aerial High Resolution Imaging Surveys (Consensus on Aerial High Res vs. High Definition Digital Aerial Wildlife Surveys)

Acoustic Tools – ARIS/DIDSON, Bathymetric Surveys, Mobile & Fixed Hydroacoustic Monitoring

High Resolution Bathymetry

Hydroacoustic Remote Sensing

Side Scan Sonar Surveys

Acoustic Doppler Technology


Database Design and Management

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.


Over 45 years’ experience providing natural resource surveys, permitting, and comprehensive monitoring services in the marine and freshwater environments.

Development of environmental permit strategies for complex marine and freshwater projects from desktop and field studies through NEPA process and post-construction monitoring.

Recognized by the National Marine Fisheries Service for the outstanding quality of Essential Fish Habitat (EFH) impact assessments and Biological Assessments, including expertise in assessments for Sturgeon.

Conduct biological surveys and assessment of resources on the Atlantic Outer Continental Shelf for potential offshore development utilizing ultra-high-resolution aerial imagery to record the locations of marine birds, mammals, turtles, cartilaginous fish, and other taxa, as well as boats and structures.

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.

Highly qualified personnel and a full suite of field sampling equipment, including vessels, vibracores, gravity cores and grab samplers; Acoustic Doppler Current Profilers (ADCP); global positioning system (GPS) technology and GIS services; and biological sample analysis.

Sediment survey equipment for analytical testing, pre- and post-dredge surveys, beneficial use studies, including barge-mounted and portable vibracores, Peterson and Ponar® grabs, gravity corers, hand corers and augers, capable of sampling in deep or shallow water, lakes, rivers, or bays, lagoons/impoundments, wetlands, and tidal flats.

Capacity to quickly mobilize and deploy multiple field crews to fit the needs of the project.

Extensive in-house staff expertise with rare, threatened and endangered species including freshwater mussels, bats, wildlife, fish, plants and other species.

Expert witnesses and peer reviewers for utility companies, large manufacturers, port authorities and others.