Normandeau Associates is experienced in environmental permitting and regulatory compliance and has developed relationships with federal, state and local regulatory agencies helping our clients navigate challenging issues. We understand the processes needed for successful permitting and our engineers stay on top of the ever-changing regulatory landscape.

Services offered within environmental permitting and regulatory compliance:

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

Bald and Golden Eagle Protection Act

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

Clean Water Act Sections 401, 402 and 408

Comprehensive Environmental Response, Compensation, and Liability Act

Coastal Zone Management Act

Endangered Species Act

Federal Power Act

Fish and Wildlife Coordination Act

Marine Mammal Protection Act

Magnuson-Stevens Fisheries Conservation and Management Act

Migratory Bird Treaty Act

National Environmental Policy Act

National Historic Preservation Act

National Pollution Discharge Elimination System Permits

Nuclear Regulatory Commission Regulatory Guidelines

Rivers and Harbors Act

Resource Conservation and Recovery Act

US Forest Service Special Use Permits

Wild and Scenic Rivers Act

DOE Presidential Permits

State and Local Natural Resource Related Regulations

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

FERC Licensing Strategy and Process Management

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

Environmental Permit Compliance Tracking

Document Preparation and Management

Settlement Negotiation

Expert Witness Testimony

Construction Compliance with Permit Conditions

Support for Recreational/Historic and Archeological Studies

Instream Flow Assessments

Environmental Due Diligence for Facility Sale/Acquisition

Fisheries Mitigation

Fish and Amphibian Salvage and Relocation

Fish Distribution and Abundance Evaluations

CWA 316(b) Impingement and Entrainment Surveys

Construction and Post-construction Monitoring

Erosion and Sedimentation Control Monitoring

Endangered Species Monitoring

Avian/Bat Monitoring

Freshwater Mussel Monitoring

Mark-Recapture and Survivorship Studies

Radiological Environmental Monitoring Program

CWA 316(a) Thermal Plume Studies

Fish Identification Stomach and Tissue Sampling and Analysis

Quality Assurance Programs

Monitoring Designated Critical Habitat (Wildlife Species or Plant Communities)

Turbine/Spillway Passage Survival, Injury, and Entrainment

Turbine Operational Modifications

Fish Passage Evaluation

Monitoring of Habitat Identified as Critical Habitat for Wildlife Species or Plant Communities

Wetland Mitigation Monitoring


Normandeau’s fisheries biologists are experienced with marine and freshwater fish species.  We are experienced with diadromous (anadromous and catadromous) fish populations including both American eel and river herring.  Our sturgeon expertise includes anadromous species indigenous to the East Coast, such as the Atlantic and shortnose sturgeon and potadromous species found in the Great Lakes and Mississippi drainages, such as the lake and shovelnose sturgeon.

Normandeau’s expert fisheries biologists conduct Essential Fish Habitat (EFH) and Biological Assessments, sophisticated mark/recapture and hydroacoustic studies, agency negotiation, and mitigation development.  We conduct field studies, compile biological assessments and Habitat Conservation Plans, and represent clients in Endangered Species Act (ESA) Section 7 and Section 10 consultations.

Our fish passage operation projects range from the basic passing of American Eel elvers above a low-head dam on an East Coast stream to the monitoring of millions of Pacific salmon on the largest rivers of the Pacific Northwest.  To reliably estimate the survival rate of fish as they travel through various passage routes, Normandeau developed the HI-Z Turb’N Tag® a unique fish recovery technique.

We are Instream Flow Incremental Methodology (IFIM) certified, and our expertise includes USFWS Habitat Evaluation Procedures (HEP), and we often provide training to federal and state agencies.  Our aquatic specialists adhere to the EPA’s Rapid Bioassessment Protocols (RBP) to evaluate stream/river habitat for macroinvertebrates and fish, supported by a full array of technology and equipment, boats, trailers, and sampling instruments.



Normandeau conducts habitat assessments and field surveys for terrestrial mammals, from boreal forests that provide habitat for Canada lynx, to scrub-shrub habitat associated with transmission lines and New England cottontail populations. With the survey results and habitat data Normandeau evaluates a project’s potential impacts and designs proactive impact avoidance and mitigation strategies. Normandeau has assisted numerous clients with navigating the regulatory process to maximize positive outcomes for both the project and the species of interest.


Our scientists are experienced in characterizing, identifying, and evaluating potential issues associated with offshore development and maintenance activities. Normandeau uses state-of-the-art ultra-high resolution aerial imagery to record and identify the locations of marine mammals including turtles, whales and sea lions. Our scientists are experienced in characterizing and evaluating potential issues associated with undersea cables, such as electromagnetic fields and thermal plumes. Normandeau develops Biological Assessments for federally threatened and endangered species in support of Section 7 Endangered Species Act consultation with the US Fish and Wildlife Service and National Marine Fisheries Service.

Amphibian and Reptiles

Normandeau conducts surveys and research on a wide variety of amphibian and reptile species, from the northern black racer in New Hampshire to indigo snake in Florida. Our experience includes call surveys for frogs and toads, active searching surveys for presence/absence of a wide variety of snakes and turtles, trapping and telemetry studies for turtles, and habitat assessments for all species. Normandeau’s biologists have the qualifications to receive state handling permits as required to survey for and handle a wide variety of state-listed amphibian and reptiles, including well-qualified FWC Authorized Agents to perform all aspects of gopher tortoise permitting and relocation in Florida. Additionally, Normandeau’s biologists and wetland scientists have extensive experience conducting vernal pool assessments and identifying the amphibian egg masses present, including blue spotted salamander and wood frog.


Normandeau scientists understand that bats live throughout the United States and play a major role in all terrestrial ecosystems. Therefore, proper planning will minimize potential impacts to species at risk including the federally endangered Indiana bat, the federally threatened northern long-eared bat, grey bat, and other protected species such as the Florida Bonneted Bat. Development and tree removal can impact roosting and foraging habitat, thereby triggering Endangered Species Act permit requirements.

Normandeau’s dedicated bat team is staffed with biologists who have advanced degrees in bat ecology, decades of experience, and maintain the necessary permits to capture and tag protected bat species. Our team possesses a unique skill set and deploys innovative technologies to address bat issues, such as ReBAT and TIMR.


Normandeau ornithologists are highly skilled in designing and managing bird field studies. We routinely coordinate our projects in an ever changing regulatory landscape. We are familiar with the requirements of the Migratory Bird Treaty Act, Bald and Golden Eagle Protection Act as they relate to project execution. We conduct bird pre-construction point count surveys, raptor counts, and nocturnal bird surveys at wind facilities throughout the United States. Data from our field studies provide species composition, relative abundance, and frequency of bird use. We perform post-construction monitoring carcass counts and fatality estimation studies using the Huso Estimator or Evidence of Absence approaches. Normandeau conducts winter raptor surveys, monitoring for eagles as part of shoreland requirements, nest surveys for bald eagle and ospreys, breeding bird surveys for numerous other rare, threatened or endangered species presence.

Normandeau developed the Remote Condor Observation Network (ReCON™) as an early detection system that provides energy facility operations centers with real-time alerts of an approaching condor.

Our unique understanding of avian/power line interactions has resulted in our work with the Avian Power Line Interaction Committee (APLIC) and subcommittee to update Reducing Avian Collisions with Power Lines with federal review by the USFWS.

Normandeau's Acoustic-Thermographic Offshore Monitoring system (ATOM™) is a bird and bat detection system that provides day and night monitoring in the offshore environment.

Freshwater Mussels

Normandeau has experience with over 67 mussel species from the Interior Basin and Atlantic Slope including numerous state or federal listed species. We hold federal and state collection permits throughout New England, the Upper Mid-west, and Mid-Atlantic regions. Normandeau’s recognized USFWS Qualified Surveyors are approved to handle thirteen federally endangered mussel species, throughout USFWS Regions 3 (Midwest) and 5 (Northeast; 17 states), including but not limited to, the Upper Mississippi, Ohio, Allegheny, Potomac, Susquehanna, Delaware, Hudson, Connecticut, Merrimack and Lake Erie drainages. Our fully integrated Qualified Surveyor and dive team routinely supports transportation, pipeline, hydropower and infrastructure projects. Our Qualified Surveyors are experienced in species identification, population surveys, tagging, relocation, and survivorship studies. From concept to completion, we are adept with numerous mussel survey protocols, programmatic agreements, project coordination, and formal Section 7 Endangered Species Act consultation.


Normandeau botanists have extensive experience surveying rare plants, including state and federal-listed species and their habitats, such as the northeastern bulrush. Coordination and surveys may be required to successfully obtain state and federal permits for energy, transportation and land development projects s. Our botanists work closely with agencies to develop comprehensive survey protocols designed to maximize detection of known and undocumented rare plant populations. Our nationwide staff are well versed in the various regional flora, and botanical surveys are always performed to comply with state and federal methodologies. Surveys are performed during the specific survey windows for target species, and habitat surveys can be performed throughout most of the year. Field documentation includes a description of the type, condition, and dominant vegetation cover for all habitats within the project area, and plant populations are mapped with a Trimble® global positioning system (GPS) unit capable of sub-meter accuracy.