Analytics & Disposal PROCESS


DWJC opens the doors to a brand-new training facility, providing cost-effective technical training for:

- Integrated Shipping & Inventory Program (ISIP) Usage

- 49 CFR Compliance

- Advanced Waste Characterization Training to Reduce Disposal Costs

Sending staff to these trainings is beneficial to aiding a utility in reducing overall disposal costs by reducing commonly over classified waste all while having more defendable regulatory paperwork. You can trust our knowledge on these topics since we wrote most of the original research on these industry topics (you may have seen some of our work published with EPRI and the NRC).

Click here to learn more about training dates and descriptions.

Latest Research Paper: Managing Resin Wastes from the Inside Out

written by: Jon Bohnsack & David James 

The most important factor underlying optimal waste management is developing a clear picture of the radioactivity content of the waste and its impact on waste disposal cost. For almost 35 years since the publishing of 10CFR61, waste characterization has relied on sampling the final waste product after formation. In the days following 10CFR61, the cost of final disposal was marginal with only a small impact on the overall costs. Constraints were added by provisions of 10CFR61 leading to increasingly limited access to those disposal sites that remained available. Disposal costs inevitably went up. Despite this, time went by and monitoring of waste generation for activity content continued to follow the same dated practice of sampling the product after it was collected and accepting the disposal classification on the basis of that sample. It would be unexpected if that sample were actually representative of anything more than itself. This paper discusses viable options for developing the basis for characterization through process monitoring accumulation of activity at the point of generation in lieu of use of a single sample from the final waste product.

As a minimum effort, a formalized sampling program of a fixed grouping of waste streams can be implemented that could account for more than 95% of all of the activity carried in solid waste products. The sample results for each radionuclide could then be trended as time passes to develop reasonable scaling factors for difficult to measure radionuclides. This process, identified in NRC guidance, has been rigorously followed by a relatively small number of facilities. The trended scaling factors serve to avoid the use of anomalous results that would that could result in unacceptable variability.

Direct monitoring of the accumulation of activity in process streams generating solid radwaste, including demineralizers and filter streams, is a more precise approach. Nearly all of these streams are monitored by plant chemistry on a regular schedule to maintain water quality. The discussion in this paper will focus on resin bed tracking and how process knowledge of these streams can be brought together to form a consistent and precise solid waste radioactivity inventory. Some of the specific points covered in the paper include application and expansion of the fission product release computer program 3R-STAT, the importance of the spent fuel pool in radioactivity generation and its influence on the overall source term, and results from sample measurements collected over several years to corroborate using direct process measurements for the primary characterization basis.

To read the full paper please email to get a copy.

About Us: DW James Consulting specializes in simplifying the radwaste characteization and disposal process, saving our clients money and time. We specialize in characterization without over classification, MCNP shielding analyses for transportation, radwaste package plans, and software. We also have a training center in Shoreview, MN providing cost-effective training for:
- Integrated Shipping & Inventory Program (ISIP) Usage
- 49 CFR Compliance
- Advanced Waste Characterization Training to Reduce Disposal Costs

If you have a complex radwaste issue, we are the team to help you solve it.

Let's scehdule a time to talk about your unique radwaste needs. Email us at or call us at (651) 482-7556.