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Title: Remedial investigation work plan for Bear Creek Valley Operable Unit 4 (shallow groundwater in Bear Creek Valley) at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

To effectively evaluate the cumulative impact of releases from multiple sources of contamination, a structured approach has been adopted for Oak Ridge Reservation (ORR) based on studies of the groundwater and surface water separate from studies of the sources. Based on the realization of the complexity of the hydrogeologic regime of the ORR, together with the fact that there are numerous sources contributing to groundwater contamination within a geographical area, it was agreed that more timely investigations, at perhaps less cost, could be achieved by separating the sources of contamination from the groundwater and surface water for investigation and remediation. The result will be more immediate attention [Records of Decision (RODs) for interim measures or removal actions] for the source Operable Units (OUs) while longer-term remediation investigations continue for the hydrogeologic regimes, which are labeled as integrator OUs. This remedial investigation work plan contains summaries of geographical, historical, operational, geological, and hydrological information specific to the unit. Taking advantage of the historical data base and ongoing monitoring activities and applying the observational approach to focus data gathering activities will allow the feasibility study to evaluate all probable or likely alternatives.
Publication Date:
OSTI Identifier:
10191598
Report Number(s):
DOE/OR--01-1115-D2; Y/ER--56-D2
ON: DE94001950; TRN: 93:025605
DOE Contract Number:
AC05-84OS21400
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jul 1993
Research Org:
Oak Ridge Y-12 Plant, TN (United States); Science Applications International Corp., Oak Ridge, TN (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 54 ENVIRONMENTAL SCIENCES; GROUND WATER; CONTAMINATION; SURFACE WATERS; Y-12 PLANT; REMEDIAL ACTION; OAK RIDGE RESERVATION; SAMPLING; CHEMICAL ANALYSIS; PUBLIC HEALTH; HEALTH HAZARDS; SAFETY; RESOURCE RECOVERY ACTS; US SUPERFUND; COMPLIANCE; MONITORING; HYDROLOGY; GEOLOGY; HAZARDOUS MATERIALS 054000; 540250; HEALTH AND SAFETY; SITE RESOURCE AND USE STUDIES