Navajo Area Abandoned Uranium Mines Response, Assessment, and Evaluation Services

About the RAES Contract

The purpose of the Navajo Area Uranium Mines Response, Assessment, and Evaluation Services (RAES) contract is to provide nationally consistent services to the U.S. Environmental Protection Agency (USEPA) Remedial Project Managers (RPMs), On-Scene Coordinators (OSCs) and other federal officials implementing USEPA’s responsibilities for response site activities where the release, or threatened release, of hazardous substances, pollutants or contaminants poses a risk to human or environmental health under the Comprehensive Environmental Response Compensation and Liability Act of 1980 (CERCLA), as amended by the Superfund Amendments and Reauthorization Act of 1986 (SARA). Services performed under RAES may include response, assessment, technical support, data management, logistics, and training activities and will primarily be performed at uranium mining-related sites that may have an impact on or within the Navajo Nation (within USEPA Regions 9 in Arizona and New Mexico) and within the Grants Mining District (located in USEPA Region 6 New Mexico). Under RAES, Tetra Tech, Inc. will provide scientific/technical support for USEPA activities in furtherance of the agency’s primary mission: the protection of human health and the environment.

More information regarding clean-up activities can be found at the USEPA website below.

Map of Abandoned Uranium Mines on and Near Navajo Nation (click to enlarge)

Join Us

Check out all the latest vacancies for this RAES contract on the Tetra Tech Job Board.

Tetra Tech is an equal opportunity employer. We invite resumes from all interested parties including women, minorities, veterans and persons with disabilities.

If you are disabled and need assistance with your job application process, please send the position you are applying for to or send a fax to 626-628-1976.

Doing Business With Us

The following links provide opportunities to become part of the RAES team and provide services to support this important program.

Doing Business With USEPA

More information regarding USEPA contracting opportunities can be found at the website below.

Vendor Registration

Registering as a vendor enables companies to participate in the bid process for project-related proposals.

The first step in getting involved with the RAES contract requires that each company register with Tetra Tech, Inc. This is a straight forward process that requires entering basic company information. By registering, a company can provide background information and technical expertise that can be used to request RAES services or products from the registered company. Registration does not guarantee a contract. All bids will be competitive as per requirements by the USEPA.

For help email us at:

Requests for Proposals

Registered vendors can download requests for proposals (RFPs) for services offered by the RAES team here.

Proposal Name Proposal Due Date

Request for Geotechnical Laboratories  


General Description: Request for Proposal for Geotechnical Analytical Services, RFP #RAES-BOA-GEOTECH-2018. We anticipating awarding a Basic Ordering Agreement to last through October 2022 (the end of RAES EPA Prime Contract). We anticipate making more than one award. Attached are the following documents: RFP #RAES_BOA_GEOTECH_2018 1. Cover letter and instructions 2. Attachment A – Summary Lab Specifications 3 Attachment B – Statement of Work 4 Attachment C – Pricing Summary (Excel Tables) 5 Attachment D – Representation and Certification of Offeror form 6 Attachment E – Sample Subcontract including Terms & Conditions, Insurance requirements, and flowdown clauses Questions must be submitted in writing not later than July 23, 2018. Email questions to me at PROPOSAL DUE DATE: Proposals are due by close of business (5:00 PM Pacific Time) on Monday, July 30, 2018. Submit all proposal documents to the following individuals and

RAES Request for Information from Drillers  


General Description: The Drilling RFP is still impending. Tetra Tech is seeking drilling firms interested in being added to the bidders list when the solicitation package ready to distribute. Please respond with your interest, statement of qualifications, capabilities, and list of equipment. Generally, we are seeking companies that can provide drilling services in support of the determination of vertical extent of mine related contamination from the historical uranium mining operations primarily located on and near the Navajo Nation. In general, the access roads require limited access rigs to reach the sites. The drilling rigs should be capable of varying degrees of accessibility based on the site (i.e. some sites are easier to reach than others). The drilling system should be capable of collecting environmental samples to a depth of 20 feet or more (usually much less) and to allow for downhole gamma probe. In most cases, Jeep/Tacoma access to the site is possible but in some cases UTV or foot access is required.

Request for Rental of Portable Toilets and Washing Stations  


General Description: Request for Portable Toilets and Washing Stations with weekly services/cleaning located at the Navajo site, Cove, Arizona
More Information: Please provide monthly rental rates inclusive of weekly services/cleaning.

Request to Rent ATV or UTV  


General Description: We are trying to find a company that will rent a 4-wheel drive truck that will fit a 2-person ATV in the back. We need an ATV vehicle that will get two people into a remote area so our engineer/scientist can conduct surveys in remote areas on the back side of the Chuska/Lukachukai Mountains. We need weekly and monthly rates.

Rugged Field Tablet with GPS Equipment Rental  


General Description: Juniper Mesa 2 Geo Equipment Rental

RAES Request for Qualifications – Wilderness First Aid Training  


General Description: Develop and teach 1-Day course on Wilderness First Aid in and surrounding the Navajo Nation.
More Information: The course must provide instruction as well as exercises that incorporate practice using wilderness first aid techniques specific to injuries likely to occur while working on Navajo Area Uranium Mines (NAUM). Please provide a brief description of your capabilities and contact information.

Request for Qualifications – UTV/ATV Safety Training  


General Description: Develop and teach 1-Day course in the field on Utility Task Vehicle (UTV) and All-Terrain Vehicle (ATV) Safety
More Information: UTV/ATV Safety course must include hands-on practice and it must focus on the driving conditions and hazards associated with using off-highway vehicles on the Navajo Nation and surrounding areas. Please provide a brief description of your capabilities and contact information.

Proposal Download and Submittal:

Registered vendors can download available RFPs and submit their proposals to the RAES contract here. The following steps are outlined to help vendors complete this process:

  1. Download the RFP by clicking on the information button. ()
    Files in PDF format may be viewed using Adobe Acrobat.
    Adobe Acrobat Reader DC software is the free global standard for reliably viewing, printing, and commenting on PDF documents. Get Adobe Reader
  2. Prepare a proposal and cost estimate to provide services as per the RFP.
  3. Email your proposal to the RAES team as one document in PDF format.

For help email us at:

Selection Process:

Your proposal will be reviewed through a competitive process with all other proposals submitted for each RFP. You will then be notified upon the decision of the selected vendor.

Tetra Tech, Inc. Outreach

Science Technology Engineering and Math (STEM)

Tetra Tech is reaching out to local educational institutions to foster the education of Navajo students into STEM fields of study.

Interested educators may contact the STEM team at:

(Be sure to indicate STEM in the email subject line.)

STEM Events

March 29, 2018 - Monument Valley High School, Arizona

(More events are currently being scheduled. Be sure to check back for the latest schedule)

Tetra Tech is committed to fostering the education of Navajo students into the professional fields of science, technology, engineering, and math. Our STEM outreach program is designed to share with students the opportunities that can be pursued by students who venture into these exciting areas of studies. We are proud to highlight the success and accomplishments of our Navajo staff during these events, where students can meet role models who have successfully entered the STEM fields as professionals, and are part of our RAES Team. We are currently working with school administrators to schedule STEM events across the Nation. If you are a school administrator interested in finding out more about this opportunity, please contact us at the following email address:

Participation in Navajo Events

Tetra Tech continues to support the Navajo Nation by attending the following events:


The following business partners are assisting us in performing RAES work across the Navajo Nation. We look forward to working with many more partners.

Contact Us

Program Information

Kenyon Larsen, PMP
RAES Contract Program Manager
1999 Harrison Street, Ste. 500
Oakland, CA 94612
(510) 302-6359
Pacific Time

Business Opportunities

Maricar Cabera
Procurement Specialist
1999 Harrison Street, Ste. 500
Oakland, CA 94612
(510) 302-6260
Pacific Time