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Title: Limited field investigation report for the 100-BC-5 Operable Unit

Abstract

This limited field investigation (LFI) was conducted to assess the applicability of interim remedial measures (IRM) for reducing human health and environmental risks within the 100-BC-5 Groundwater Operable Unit. The 100-BC-5 Operable Unit is one of three operable units associated with the 100 B/C Area. Operable units 1 and 2 address contaminant sources while 100-BC-5 addresses contamination present in the underlying groundwater. The primary method of investigation used during this LFI was the installation of monitoring wells. Samples were collected from the groundwater and soils and submitted for laboratory analysis. Boreholes were surveyed for radiological contamination using downhole geophysical techniques to further delineate the locations and levels of contaminants. All samples were screened to ascertain the presence of volatile organic compounds and radionuclides. Analytical data were subjected to validation; all first round and 10% of the subsequent rounds of data associated with the LFI were validated. The screening method was used to identify contaminants of potential concern (COPC). This screening method eliminated from further consideration constituents that were below background. Constituents considered nontoxic to humans were eliminated from the human health evaluation. Inconsistency and blank contamination were also evaluated in the screening process. These COPC were evaluated further in themore » qualitative risk assessment (QRA). Tritium and strontium-90 were identified as contaminants of concern at 100-BC-5 because the concentrations exceeded potential applicable or relevant and appropriate requirements. The QRA determined that the risk is low for all of the site contaminants.« less

Publication Date:
Research Org.:
USDOE Richland Operations Office, WA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10167543
Report Number(s):
DOE/RL-93-37
ON: DE94015330; NC: NONE; TRN: 94:014682
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jul 1994
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 54 ENVIRONMENTAL SCIENCES; HANFORD RESERVATION; WATER POLLUTION; GROUND WATER; CONTAMINATION; TRITIUM; RISK ASSESSMENT; STRONTIUM 90; REMEDIAL ACTION; RADIOECOLOGICAL CONCENTRATION; EXPERIMENTAL DATA; 053002; 054000; 540250; RADIOACTIVE EFFLUENTS; HEALTH AND SAFETY; SITE RESOURCE AND USE STUDIES

Citation Formats

. Limited field investigation report for the 100-BC-5 Operable Unit. United States: N. p., 1994. Web. doi:10.2172/10167543.
. Limited field investigation report for the 100-BC-5 Operable Unit. United States. https://doi.org/10.2172/10167543
. 1994. "Limited field investigation report for the 100-BC-5 Operable Unit". United States. https://doi.org/10.2172/10167543. https://www.osti.gov/servlets/purl/10167543.
@article{osti_10167543,
title = {Limited field investigation report for the 100-BC-5 Operable Unit},
author = {},
abstractNote = {This limited field investigation (LFI) was conducted to assess the applicability of interim remedial measures (IRM) for reducing human health and environmental risks within the 100-BC-5 Groundwater Operable Unit. The 100-BC-5 Operable Unit is one of three operable units associated with the 100 B/C Area. Operable units 1 and 2 address contaminant sources while 100-BC-5 addresses contamination present in the underlying groundwater. The primary method of investigation used during this LFI was the installation of monitoring wells. Samples were collected from the groundwater and soils and submitted for laboratory analysis. Boreholes were surveyed for radiological contamination using downhole geophysical techniques to further delineate the locations and levels of contaminants. All samples were screened to ascertain the presence of volatile organic compounds and radionuclides. Analytical data were subjected to validation; all first round and 10% of the subsequent rounds of data associated with the LFI were validated. The screening method was used to identify contaminants of potential concern (COPC). This screening method eliminated from further consideration constituents that were below background. Constituents considered nontoxic to humans were eliminated from the human health evaluation. Inconsistency and blank contamination were also evaluated in the screening process. These COPC were evaluated further in the qualitative risk assessment (QRA). Tritium and strontium-90 were identified as contaminants of concern at 100-BC-5 because the concentrations exceeded potential applicable or relevant and appropriate requirements. The QRA determined that the risk is low for all of the site contaminants.},
doi = {10.2172/10167543},
url = {https://www.osti.gov/biblio/10167543}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 1994},
month = {Fri Jul 01 00:00:00 EDT 1994}
}