skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: K Basins Groundwater Monitoring Task, K Basins Closure Project: Report for January, February, and March 2007

Abstract

This report describes the results of groundwater monitoring near the K Basins for the period January, February, and March 2007.

Authors:
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
969185
Report Number(s):
PNNL-16556
830403000; TRN: US1000173
DOE Contract Number:
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 54 ENVIRONMENTAL SCIENCES; CHROMIUM; CONTAMINATION; MONITORING; GROUND WATER; HANFORD RESERVATION; FUEL STORAGE POOLS; WATER WELLS; INSTALLATION; Groundwater; K Basins; Hanford Site

Citation Formats

Peterson, Robert E. K Basins Groundwater Monitoring Task, K Basins Closure Project: Report for January, February, and March 2007. United States: N. p., 2007. Web. doi:10.2172/969185.
Peterson, Robert E. K Basins Groundwater Monitoring Task, K Basins Closure Project: Report for January, February, and March 2007. United States. doi:10.2172/969185.
Peterson, Robert E. Sun . "K Basins Groundwater Monitoring Task, K Basins Closure Project: Report for January, February, and March 2007". United States. doi:10.2172/969185. https://www.osti.gov/servlets/purl/969185.
@article{osti_969185,
title = {K Basins Groundwater Monitoring Task, K Basins Closure Project: Report for January, February, and March 2007},
author = {Peterson, Robert E.},
abstractNote = {This report describes the results of groundwater monitoring near the K Basins for the period January, February, and March 2007.},
doi = {10.2172/969185},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}

Technical Report:

Save / Share:
  • This report provides information on groundwater monitoring near the K Basins during April, May, and June 2007. Conditions remained similar to those reported in the previous quarter’s report, with no evidence in monitoring results to suggest groundwater impact from current loss of shielding water from either basin to the ground. During the current quarter, the first results from two new wells installed between KE Basin and the river became available. Groundwater conditions at each new well are reasonably consistent with adjacent wells and expectations, with the exception of anomalously high chromium concentrations at one of the new wells. The Kmore » Basins monitoring network will be modified for FY 2008 to take advantage of new wells recently installed near KW Basin as part of a pump-and-treat system for chromium contamination, and also the new wells recently installed between the KE Basin and the river, which augment long-term monitoring capability in that area.« less
  • This report provides information on groundwater monitoring at the K Basins during October, November, and December 2006. Conditions remained very similar to those reported in the previous quarterly report, with no evidence in monitoring results to suggest groundwater impact from current loss of basin water to the ground. The K Basins monitoring network will be modified in the coming months as a consequence of new wells having been installed near KW Basin as part of a pump-and-treat system for chromium contamination, and new wells installed between the KE Basin and the river to augment long-term monitoring in that area.
  • This report provides information on groundwater monitoring at the K Basins during July, August, and September 2006. Conditions remain very similar to those reported in the previous quarterly report, with no evidence in monitoring results to suggest groundwater impact from current loss of basin water to the ground. The K Basins monitoring network will be modified in the coming quarters as a consequence of remedial action at KE Basin, i.e., removal of sludge and basin demolition.
  • This report provides a summary of groundwater monitoring at the K Basins during April, May, and June 2006
  • Fuel storage basins associated with the 105-KE and 105-KW reactor buildings are currently being used to store irradiated fuel rods from past operations. Each reactor building contains a basin that holds approximately 1.3 million gal of water. The water provides a radiation shield, as well as a thermal sink for heat generated by the stored fuel. Some of the fuel rods stored in the K-East basin have damaged cladding and are stored in open canisters, allowing contact between the metallic uranium fuel and basin water. The interaction results in radionuclides being released to the basin water. Various exchange columns andmore » filters associated with a closed-circuit circulation system are in place to reduce radionuclide concentrations in basin water. Tritium cannot be removed by these methods and is present in K-East basin water at a concentration of several million pCi/L. In contrast, K-West basin, where only fully encapsulated, undamaged fuel is stored, exhibits tritium concentrations at much lower levels--several hundred thousand pCi/L. The water budget for the basins includes water losses resulting from evaporation and possibly leakage, and the addition of make-up water to maintain a specific level. Water loss calculations are based on water level decreases during time intervals when no make-up water is added. A calculated loss rate beyond what is expected due to evaporation and uncertainty in the calculations, is assumed to be leakage to the soil column. Given sufficiently high leakage rates, and/or a preferential pathway for downward migration through the soil column, basin water may contaminate groundwater flowing beneath the basins.« less