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Title: High-level waste leakage from the 241-T-106 tank at Hanford

Abstract

The history, status, fate, and impact of the 4.34 x 10/sup 5/-liter (115,000-gal) radioactive waste tank leak from the 241-T-106 tank have been studied since 1973. As of May 1978, the maximum detected depth of the 1-microcurie per liter (..mu..Ci/l) concentration of /sup 106/Ru penetration was 33 meters (108 ft) below the ground surface or 29 meters (95 ft) above the regional water table. This maximum depth of penetration was detected in two of the dry wells in the 241-T tank farm. In no other well has radioactivity greater than 1.0-..mu..Ci/l been found deeper than 29 meters (95 ft). This is approximately 43% of the distance from the bottom of the tank to the water table. The maximum horizontal movement of the 1-..mu..Ci/l /sup 106/Ru concentration front from the tank was approximately 23 meters (75 ft) at a depth of 25 meters (82 ft). This distance is approximately equal to the diameter of the tank. The rate of frontal movement of radioactivity was qualitatively estimated. A large portion of the movement occurred in 1973, prior to the publication of an initial tank leak status report. From 1973 to 1974, detectable lateral movement occurred in at least some sediment layers. Frommore » 1974 to 1978, movement could not generally be detected. However, migration in wells near the leak perimeter was detected in 1978, and the probable cause defined. Calculations on vadose zone moisture and wetting frontal movement were found to be essentially in qualitative agreement in their assessed lack of movement of any waste above concentration guidelines to the Hanford ground water. Thus, during the hazardous lifetime of the fission products, there will likely be no amount of radioactivity enter the Hanford ground water. Therefore, there appears to be no impact of the leak on the Columbia River (the nearest point of uncontrolled access).« less

Authors:
; ; ;
Publication Date:
Research Org.:
Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
OSTI Identifier:
6086413
Report Number(s):
RHO-ST-14
TRN: 79-019168
DOE Contract Number:  
EY-77-C-06-1030
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; RADIOACTIVE WASTE STORAGE; TANKS; UNDERGROUND STORAGE; LEAKS; HANFORD RESERVATION; HIGH-LEVEL RADIOACTIVE WASTES; CONTAINERS; MANAGEMENT; NATIONAL ORGANIZATIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; STORAGE; US DOE; US ERDA; US ORGANIZATIONS; WASTE MANAGEMENT; WASTE STORAGE; WASTES; 052002* - Nuclear Fuels- Waste Disposal & Storage; 054000 - Nuclear Fuels- Health & Safety

Citation Formats

Routson, R.C., Price, W.H., Brown, D.J., and Fecht, K.R. High-level waste leakage from the 241-T-106 tank at Hanford. United States: N. p., 1979. Web.
Routson, R.C., Price, W.H., Brown, D.J., & Fecht, K.R. High-level waste leakage from the 241-T-106 tank at Hanford. United States.
Routson, R.C., Price, W.H., Brown, D.J., and Fecht, K.R. Thu . "High-level waste leakage from the 241-T-106 tank at Hanford". United States.
@article{osti_6086413,
title = {High-level waste leakage from the 241-T-106 tank at Hanford},
author = {Routson, R.C. and Price, W.H. and Brown, D.J. and Fecht, K.R.},
abstractNote = {The history, status, fate, and impact of the 4.34 x 10/sup 5/-liter (115,000-gal) radioactive waste tank leak from the 241-T-106 tank have been studied since 1973. As of May 1978, the maximum detected depth of the 1-microcurie per liter (..mu..Ci/l) concentration of /sup 106/Ru penetration was 33 meters (108 ft) below the ground surface or 29 meters (95 ft) above the regional water table. This maximum depth of penetration was detected in two of the dry wells in the 241-T tank farm. In no other well has radioactivity greater than 1.0-..mu..Ci/l been found deeper than 29 meters (95 ft). This is approximately 43% of the distance from the bottom of the tank to the water table. The maximum horizontal movement of the 1-..mu..Ci/l /sup 106/Ru concentration front from the tank was approximately 23 meters (75 ft) at a depth of 25 meters (82 ft). This distance is approximately equal to the diameter of the tank. The rate of frontal movement of radioactivity was qualitatively estimated. A large portion of the movement occurred in 1973, prior to the publication of an initial tank leak status report. From 1973 to 1974, detectable lateral movement occurred in at least some sediment layers. From 1974 to 1978, movement could not generally be detected. However, migration in wells near the leak perimeter was detected in 1978, and the probable cause defined. Calculations on vadose zone moisture and wetting frontal movement were found to be essentially in qualitative agreement in their assessed lack of movement of any waste above concentration guidelines to the Hanford ground water. Thus, during the hazardous lifetime of the fission products, there will likely be no amount of radioactivity enter the Hanford ground water. Therefore, there appears to be no impact of the leak on the Columbia River (the nearest point of uncontrolled access).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}

Technical Report:
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