Thomas Gray & Associates, Inc. (TGA)

In today's confusing regulatory environment, maintaining compliance can be a constant headache and a fiscal drain for businesses that use radioactive materials. You can count on Thomas Gray & Associates, Inc. (TGA) to guide you through the maze and ensure your radioactive materials license, management, and disposal programs are designed and conducted in a responsible, professional, and fully-compliant manner.

Founded in 1970, TGA provides radioactive, hazardous, and mixed waste packaging, brokerage, processing, transportation and disposal services nationwide. We have successfully managed our customers’ service and waste disposal needs for over 50 years, maintaining contracts with private, public, and government institutions nationwide. Our clients include educational institutions, hospitals, research facilities, radiopharmaceutical firms, and other industry generators.

Fully permitted and licensed to operate in the United States, TGA offers complete logistics management with strict compliance of local, state, and federal laws and regulations. Our regulatory compliance record is exemplary, and we will help you ensure that your liability and exposure is limited.

​We understand how difficult it can be to understand, and be in compliance with, all local and federal laws. That's why, at TGA, we strive to make things as simple as possible for our customers. TGA, along with our two wholly owned subsidiaries, offer many services for our clients. On-site Health Physics services, radioactive source leak testing, regulatory permit acquisition, transportation and disposal services, and many more!

Radioactive Waste

At Thomas Gray & Associates (TGA), we provide nationwide radioactive waste management and disposal services for hospitals, universities, government agencies, research labs, and private industry.

We understand that handling radioactive waste is complex and highly regulated. That’s why we offer turnkey solutions—making the process safe, compliant, and stress-free for our customers across the United States.

What sets us apart:

TGA owns and operates the only licensed radioactive waste processing facility in California, one of the few in the entire Nation! This unique capability allows us to directly process materials in-house, while also leveraging our nationwide network of disposal partners to provide cost-effective and compliant solutions anywhere in the country.

​Whether you need assistance with sealed source disposal, contaminated trash, biological material, or transportation and packaging, TGA has the experience and infrastructure to manage it all.

​Some of our Radioactive Waste Management Services include:

• Sealed Source Disposal – Safe, compliant management of sealed radioactive sources.

• Contaminated Waste Processing – Disposal of contaminated trash, tools, filters, and equipment.

• Biological and Medical Waste Disposal – Secure handling of radioactive biological and medical materials.

• Transportation and Packaging – DOT-compliant packaging, labeling, manifesting, and shipment.

• Regulatory Support – Guidance and documentation for state and federal compliance.