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Title: Characterization of the Old Hydrofracture Facility (OHF) impoundment

Abstract

A characterization study was conducted on the Old Hydrofracture Facility Pond, at Oak Ridge National Laboratory to provide information necessary for its proper disposition. This impoundment was constructed in 1963 to provide a containment basin for radioactive grout in the event of an emergency spill from the Hydrofracture Facility. The impoundment is rectangular and measures about 30 by 6 m at the bottom. Water in the impoundment overlies about 0.3 m of sediment waste. The pond sediment was sampled and analyzed to determine whether it would classify as a hazardous waste under regulatory definitions promulgated in accordance with the Resource Conservation and Recovery Act (RCRA). Chemical analyses indicate that the sediment/waste does not contain hazardous chemical constituents above levels permitted by RCRA regulations. The sediment was found to contain an estimated radioactivity inventory of about 260 Ci, consisting primarily of /sup 137/Cs (60 Ci), /sup 90/Sr (190 Ci), /sup 60/Co (0.3 Ci), and /sup 238/U (0.3 Ci). The impoundment is excavated in clay soil and weathered sedimentary rock of the Conasauga Group. Four wells for monitoring the groundwater were constructed around the perimeter of the impoundment to depths ranging from 5.8 to 7.9 m. Sampling and analyses of the groundwatermore » have been completed for the winter and spring seasons (1985) and will be continued for at least two more quarters to account for possible natural seasonal variation in groundwater quality. At the end of that time, a determination as to the effect of the impoundment on the groundwater quality will be made. Analyses from the first two quarters indicate that radioactivity (gross beta resulting from /sup 90/Sr and tritium) of the groundwater exceeds limits allowed by RCRA regulations. Low levels (0.0001 mg/L) of polychlorinated biphenyls were also detected in the groundwater.« less

Authors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA). Environmental Sciences Div.
OSTI Identifier:
5262189
Report Number(s):
ORNL/TM-9990
ON: DE86015975
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted. Environmental Sciences Division Publication No. 2688
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 54 ENVIRONMENTAL SCIENCES; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; GROUND WATER; RADIOACTIVITY; RADIONUCLIDE MIGRATION; WATER QUALITY; SEDIMENTS; LOW-LEVEL RADIOACTIVE WASTES; PONDS; RADIOACTIVE WASTE STORAGE; ENVIRONMENTAL QUALITY; ENVIRONMENTAL TRANSPORT; HYDROGEN COMPOUNDS; MANAGEMENT; MASS TRANSFER; MATERIALS; OXYGEN COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; STORAGE; SURFACE WATERS; WASTE MANAGEMENT; WASTE STORAGE; WASTES; WATER; 053000* - Nuclear Fuels- Environmental Aspects; 520301 - Environment, Aquatic- Radioactive Materials Monitoring & Transport- Water- (1987); 052002 - Nuclear Fuels- Waste Disposal & Storage

Citation Formats

Stansfield, R. G., and Francis, C. W. Characterization of the Old Hydrofracture Facility (OHF) impoundment. United States: N. p., 1986. Web. doi:10.2172/5262189.
Stansfield, R. G., & Francis, C. W. Characterization of the Old Hydrofracture Facility (OHF) impoundment. United States. https://doi.org/10.2172/5262189
Stansfield, R. G., and Francis, C. W. Mon . "Characterization of the Old Hydrofracture Facility (OHF) impoundment". United States. https://doi.org/10.2172/5262189. https://www.osti.gov/servlets/purl/5262189.
@article{osti_5262189,
title = {Characterization of the Old Hydrofracture Facility (OHF) impoundment},
author = {Stansfield, R. G. and Francis, C. W.},
abstractNote = {A characterization study was conducted on the Old Hydrofracture Facility Pond, at Oak Ridge National Laboratory to provide information necessary for its proper disposition. This impoundment was constructed in 1963 to provide a containment basin for radioactive grout in the event of an emergency spill from the Hydrofracture Facility. The impoundment is rectangular and measures about 30 by 6 m at the bottom. Water in the impoundment overlies about 0.3 m of sediment waste. The pond sediment was sampled and analyzed to determine whether it would classify as a hazardous waste under regulatory definitions promulgated in accordance with the Resource Conservation and Recovery Act (RCRA). Chemical analyses indicate that the sediment/waste does not contain hazardous chemical constituents above levels permitted by RCRA regulations. The sediment was found to contain an estimated radioactivity inventory of about 260 Ci, consisting primarily of /sup 137/Cs (60 Ci), /sup 90/Sr (190 Ci), /sup 60/Co (0.3 Ci), and /sup 238/U (0.3 Ci). The impoundment is excavated in clay soil and weathered sedimentary rock of the Conasauga Group. Four wells for monitoring the groundwater were constructed around the perimeter of the impoundment to depths ranging from 5.8 to 7.9 m. Sampling and analyses of the groundwater have been completed for the winter and spring seasons (1985) and will be continued for at least two more quarters to account for possible natural seasonal variation in groundwater quality. At the end of that time, a determination as to the effect of the impoundment on the groundwater quality will be made. Analyses from the first two quarters indicate that radioactivity (gross beta resulting from /sup 90/Sr and tritium) of the groundwater exceeds limits allowed by RCRA regulations. Low levels (0.0001 mg/L) of polychlorinated biphenyls were also detected in the groundwater.},
doi = {10.2172/5262189},
url = {https://www.osti.gov/biblio/5262189}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {9}
}