NSSI
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The five fundamental areas of our organization are Tritium Recycling, Sealed Sources, RCRA Waste, Mixed Waste, and Low Level Radioactive Waste.
NSSI offers services and products including chemical and radioactive decontamination, leak testing, radiation instrument calibration, radiation safety training, and waste disposal. NSSI continues to strive on an upward trajectory toward success with a vigorous emphasis on recycling, waste minimization, clean treatment/disposal options and waste management methods incorporating a strong value on being eco-friendly by providing our services in a clean, safe, and environmentally friendly approach. NSSI has been permitted and licensed for the manufacture, use, collection, treatment, disposal, storage, transfer, servicing of radioactive sealed sources, radioactive materials, hazardous mixed waste, and hazardous/non-hazardous chemicals. NSSI currently holds Texas Radioactive Materials Licenses LO-2991 and RO-1811. The company obtained its final part B permit # HW-50269 by the Texas Commission of Environmental Quality in 1990 and its EPA TXD982560294 to receive a broad spectrum of waste. Our extensive licenses afford us the ability to provide a wide range of services to our customers that otherwise may be hard to perform within the constraints of their existing licenses.
09/23/2026
Non-hazardous waste still needs a well-managed plan.
NSSI helps generators and brokers manage Class 1 and Class 2 industrial waste, including liquids, solids, and heavy sludges. Our services also include containerized waste management, used oil recycling, and vacuum services.
Whether you’re planning a cleanup or managing an ongoing waste stream, our team is ready to help.
Explore our services: nssihouston.com/non-hazardous-waste
09/18/2026
Every waste stream starts with understanding what’s in it.
NSSI supports hazardous waste projects with waste profiling, lab pack services, packaging, transportation, and treatment options. Our Houston facility manages liquids, solids, and sludges in containers ranging from small pails to bulk tankers.
Have a waste stream that needs a management plan? Let’s discuss your materials and available options.
Learn more: nssihouston.com/hazardous-waste
09/11/2026
Today, we pause to remember the lives lost, honor the heroes who answered the call, and recognize the strength and unity that followed.
We will never forget.
09/09/2026
Football season is officially underway tonight — and at NSSI, we know every successful season starts with a strong game plan.
From kickoff to final whistle, we’re ready to tackle your waste management needs safely, efficiently, and responsibly.
Here’s to a great season!
www.NSSIHouston.com
09/07/2026
This Labor Day, NSSI proudly recognizes the hardworking men and women whose dedication, skill, and commitment keep our industries—and our country—moving forward.
Today, we celebrate the people behind the work. Thank you for all that you do.
Happy Labor Day from all of us at NSSI. 🇺🇸
🚨 Monthly Reminder! 🚨
NSSI is your go-to partner for all things waste management, not just radiological solutions.
We handle:
• Hazardous Waste
• Non-Hazardous Waste
• Universal Waste
• Containerized Waste
• Lab Pack Services
• Field Services
• Low Level Radioactive Waste
• Mixed Waste
• Sealed Sources
• NORM Waste
• Tritium Research & Recovery
In the lab or out in the field, we’re ready to help!
Reach out and let’s collaborate!
www.NSSIHouston.com
08/31/2026
Reliable solutions for your industrial and non-hazardous waste.
From Class 1 & Class 2 industrial waste to containerized waste, universal waste, used oil recycling and transportation, NSSI provides comprehensive waste management solutions designed around safety, compliance and efficiency. (nssihouston.com)
Learn more: nssihouston.com/non-hazardous-waste
08/28/2026
With 25+ years of experience, NSSI provides specialized tritium recovery solutions for challenging tritiated waste streams.
Discover our Tritium Research & Recovery capabilities at nssihouston.com/tritium
08/26/2026
Low-Level Radioactive Waste. Cradle-to-Grave Solutions.
Since 1971, NSSI has provided comprehensive radioactive waste services to industries nationwide—from removal, packaging and transportation to treatment and proper disposal.
Our experienced team is equipped to manage challenging LLRW and mixed waste streams safely, efficiently and in compliance with regulatory requirements.
Learn more about our LLRW capabilities:
nssihouston.com/llrw
08/21/2026
NSSI provides experienced, reliable solutions for NORM/TENORM waste management—from surveys and characterization to decontamination, transportation, and treatment.
Our team is equipped to help you manage your NORM/TENORM waste safely and efficiently.
Learn more: nssihouston.com/norm-tenorm
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Contact the business
Telephone
Website
Address
5711 Etheridge Street
Houston, TX
77087
Opening Hours
| Monday | 8am - 5pm |
| Tuesday | 8am - 5pm |
| Wednesday | 8am - 5pm |
| Thursday | 8am - 5pm |
| Friday | 8am - 5pm |