Division of Environmental Analysis (DEA)

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DEA Offices

Jennifer Gillies, Office Chief
The Biological Studies Branch (Headquarters) provides the following services related to wildlife biology, botany, ecology, wetlands and aquatic biology:

  • biological and natural resource studies in support of district projects;
  • procedural guidance on compliance with state and federal natural resource laws;
  • guidance in natural resources management through preparation of the Environmental Handbook, Volume III and Guidance for Consultants;
  • training in natural resource issues;

Jody Brown, Office Chief

The Cultural Studies Office provides services related to cultural resources (archaeological, architectural and historical) issues, including:

  • direct project support to the districts by assisting with technical studies;
  • procedural guidance on compliance with state and federal cultural resources laws;
  • Department policy and guidance through preparation of the Environmental Handbook, Volumes II (Cultural Resources) and various other publications;
  • training on cultural resources issues to the Department and other agencies;
  • conducts cultural resources surveys for the built environment, including buildings, bridges, structures, objects, complexes, linear features, districts, and landscapes;
  • prepares Findings of Effect, Memoranda of Agreement; and assists in developing mitigation measures for historic properties and resources; and
  • reviews cultural resources study documents, Findings of Effect, Memoranda of Agreement, and other environmental documents for adequacy of identification, evaluation, and treatment.

Jennifer Heichel, Office Chief

The Environmental Management Office develops and monitors compliance of policies and procedures; develops, reviews and comments on proposed legislation; is responsible for preparation of departmental environmental reports and action items for the California Transportation Commission (CTC); addresses permit streamlining and environmental productivity; and maintains the Standard Environmental Reference, a compilation of all handbooks, guidance, manuals and policy documents pertaining to environmental compliance at Caltrans. The Office Chief is the primary environmental liaison with the FHWA District Operations Chiefs.


District Coordinators

Interagency Relations Contacts

DEA Offices manage various interagency agreements that provide staff to resource and regulatory agencies for enhanced services including the development of environmental initiatives and procedures to streamline environmental and permit processes.

  • California Department of Fish & Wildlife (CDFW))
  • United States Army Corps of Engineers (USACE)
  • United States Fish and Wildlife Services (USFWS)
  • United States Department of Commerce, National Oceanic and Atmospheric Administration's National Marine Fisheries Services (NOAA)
    Contact: Jim Henke
  • California Coastal Commission (CCC)
    Contact: Scott Williams
  • United States Environmental Protection Agency (EPA)
    Contact: Jennifer Heichel
  • California Department of Parks & Recreation, Office of Historic Preservation (DPR)
    Contact: Jody Brown



Tammy Massengale, Office Chief

Consists of the following offices/subjects:


  • Geographic Information Systems (GIS) - The mission of the GIS component of GNEIS is to provide GIS support to the DEA users to assist with the sharing of environmental spatial information with other stakeholders. 
  • GIS support includes intranet and internet applications that allow stakeholders to access DEA spatial- based information. The GNEIS’ GIS group strives to create and maintain a collaborative environment between DEA users and their customers.

NEPA Assignment (NEPA) 
The Division of Environmental Analysis NEPA Assignment Office was created in 2007 to support implementation of the following programs:

  • Surface Transportation Project Delivery Program under 23 CFR 327 and the NEPA Assignment Memorandum of Understanding (MOU). The Project Delivery Program began as the Surface Transportation Project Delivery Pilot Program, a 5-year program that began on July 1, 2007 and ended on September 30, 2012.
  • CE Assignment under 23 CFR 326 and the CE Assignment MOU.
  • NEPA Assignment 326 and 327 MOU Program

The activities performed collectively under both MOUs are referred to as “NEPA Assignment”.

Environmental Collaborative Services (ECS) - The Division of Environmental Analysis (DEA) is pursuing an integrated information system with management and metrics tools that can efficiently process and deliver "product" information to stakeholders and decision makers while contributing to, and drawing upon, corporate knowledge. This integrated system manages information at four levels in concert with other systems:

  • Product Information Flow
  • Project Management Tracking
  • Process Metrics and Feedback
  • Corporate Knowledge
  • Information Management
  • Web Development and Support
  • Technical Assistance
Interagency Relations California Coastal Commission (IA Relations-CCC)

The Caltrans Coastal Program (CP) trains, educates and coordinates with Caltrans staff working on projects in the California coastal zone that must comply with the California Coastal Act. The California Coastal Commission, which implements the California Coastal Act, has a rigorous and complex process of reviewing and approving projects in the coastal zone. The CP serves as a link between Districts and the Coastal Commission, and assists Districts in navigating and understanding coastal policies and requirements through trainings, workload coordination meetings, communication tools and coordination assistance.

environmental Staff Development (eSD)

We develop and deliver training to environmental staff, statewide. Our classes include the Environmental Academy, as well as specialized training courses for Caltrans biologists, archaeologists, architectural historians, generalists/coordinators and environmental engineers. We are a part of the Capital Project Skill Development Program (CPSD), within the Division of Environmental Analysis. CPSD develops, conducts, and manages training courses to improve the skills of employees engaged in the delivery of capital improvement projects.


Hazardous Waste, Air, Noise, Paleontology, and Stormwater

Doug Coleman, Hazardous Waste, Air, Noise & Paleontology, Acting Office Chief

Hazardous Waste

The Hazardous Waste program provides policy direction, technical and regulatory information, guidance documents, training, specifications, and funding information to assist Caltrans Districts with contaminated sites and materials that may be encountered during highway projects. This includes:

  • Contaminants and Waste (Aerially Deposited Lead, Naturally Occurring Asbestos, Treated Wood Waste, asphalt and concrete grindings)
  • Contaminated Properties (Acquisition of Contaminated Property Policy)
  • Guidance for technical waste and regulatory topics and procedures most frequently encountered during highway project delivery (health and safety, remediation, site closure, environmental reporting, etc)


The Air program provides technical support for project-level air quality, mobile source air toxics and climate change studies, analysis and modeling.

  • Green house gas analysis protocol
  • PM2.5/10 hot spot analysis protocol
  • Air quality model support for CT-EMFAC and CALINE4


The Noise program provides policy direction, technical and regulatory information, research, guidance documents and training to assist Caltrans Districts with both long-term and short-term impacts due to construction and traffic noise, traffic induced vibration and bioacoustics. This includes:

  • Caltrans Traffic Noise Analysis Protocol and the Technical Noise Supplement
  • Caltrans GIS Soundwall Inventory, a listing of soundwalls built on the State Highway System
  • Noise abatement research, quieter pavements, truck noise mapping, noise measurement
  • Noise modeling support
  • Bioacoustics, pile driving noise and effects on fish and birds


The Paleontology program develops policy and provides technical and statutory information, guidance documents, and specifications to assist the Districts/Regions with the identification, evaluation, and mitigation of paleontological resources.


Shaila Chowdhury - Environmental Engineering, Office Chief

Gilbert Ogaz - Office of Stormwater Program Implementation, Office Chief

Bhaskar Joshi - Office of Stormwater Program Develeopment, Office Chief

Marian Boyle - Office of Stormwater Fiscal Analysis, Office Chief

Stormwater Program staff provide quidance on CEQA/NEPA compliance for transportation-related water quality, erosion and sedimentation issues, Regional Water Quality Control Board Basin Plans and 401 and NPDES permits, State Water Resources Control Board Policies, and California water quality legislation. The Office develops Stormwater Best Management Practices, procedures, methods, and tools for the Department's Stormwater Program; and, manages the Stormwater budget and contract/procurement process.

Statewide Alerts and Other Information

Contact Information

General Information:

General Information Line: (916) 654-2852

Media Inquiries:
Find your local Caltrans media contact on our
Public Information Officers page
or call our
Media Line: (916) 657-5060.

You can also call
for current highway conditions or find more information about roads, traffic and travel on
Caltrans' Travel page.

Physical Address:

California Department of Transportation
1120 N Street
Sacramento, CA 95814

Mailing Address:

California Department of Transportation
1120 N Street
MS 49
Sacramento, CA 95814

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