Tank Farm Borehole Geophysical Logging Data
Single- and double-shell, steel-lined concrete tanks were constructed at Hanford for underground storage of this liquid waste that resulted from the processing of plutonium. The term "tank farm" refers to the areas on the Hanford Site where groups of these subsurface tanks are located. Sixty-seven single-shell tanks have been identified as leaking and have released an estimated 1 million gallons of high-level mixed waste into the vadose (unsaturated) zone sediments surrounding the tanks.
DOE collected a baseline log of each of 760 existing dry wells, or boreholes, located around the single-shell tanks using two truck-mounted passive spectral gamma-ray logging systems.
Scope of Project
- Determine the nature and extent of the contamination by quantifying the distribution and concentration of contaminants.
- Identify likely sources of man-made gamma-emitting contamination.
- Provide site-specific lithologic correlation based on variations in naturally occurring potassium (K-40), uranium (U-238), and thorium (Th-232).
- Prepare a series of reports for individual tanks and tank farms that incorporate spectral gamma logging system data and historical data for use by Hanford personnel.
Project Objectives
- Provide data of known and defensible quality.
- Develop a baseline of the contamination distribution that will permit future data comparisons.
- Develop new technologies for enhanced vadose zone characterization.
Log/Data Reports
Data are organized by tank farm. Each section includes the log data, log plots, and reports associated with the baseline characterization and monitoring activities for a particular tank farm.
Project Plans
| Title |
Document No. |
Rev. No. |
Date |
| Spectral Gamma-Ray Borehole Geophysical Logging Characterization and Baseline Monitoring Plan for the Hanford Single-Shell Tanks |
P-GJPO-1786 |
n/a |
7/96 |
| Calibration Plan |
MAC-VZCP 1.7.3 |
1 |
7/97 |
| High-Resolution Passive Spectral Gamma-Ray Logging Procedures |
MAC-VZCP 1.7.10-1 |
2 |
10/97 |
| Preventive Maintenance Procedure for the Spectral Gamma Logging System |
MAC-VZCP 1.7.10-2 |
2 |
11/97 |
| Health and Safety Plan |
MAC-VZCP 1.7.4 |
2 |
12/97 |
| Project Management Plan |
MAC-VZCP 1.7.2 |
2 |
12/97 |
| Data Analysis Manual |
MAC-VZCP 1.7.9 |
2 |
6/00 |
| Document/Data Turnover Plan |
n/a |
n/a |
6/00 |
| High-Resolution Passive Spectral Gamma-Ray Logging Procedures |
MAC-VZCP 1.7.10-1 |
3 |
6/00 |
Calibration Reports
Other Reports
|
