Water Diversion at Low‐Level Waste Disposal Sites

Davis, E.C.; Stansfield, R.G.; Melroy, L.A.; Huff, D.D.

doi:10.1061/(asce)0733-9372(1985)111:5(714)

Cited by 6 publications

(5 citation statements)

References 10 publications

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“…16b). Th ._ource of this tritium is believed to be the old outfall from the French drain that drains the 49-trench area (Davis et al 1985). Ali other radionuclide p,'u'ameters reported to date are below minimum detectable concentrations.…”

Section: Resultsmentioning

confidence: 98%

Active Sites Environmental Monitoring Program: Mid-FY 1991 report

Ashwood¹,

Wickliff²,

Morrissey³

1991

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Section: Resultsmentioning

confidence: 98%

Active Sites Environmental Monitoring Program: Mid-FY 1991 report

Ashwood¹,

Wickliff²,

Morrissey³

1991

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“…Figure A.12 presents the history of 3H concentrations in th_,se two wells since the beginning of the tumulus project. The source of this 3H is belie, cd to be the ouffall of a French drain that drains the 49-trench area (see Davis et al 1985) that is along strike with Tumulus I. Solid Waste Operations personnel have taken corrective action within the last year to extend this outfall to a surface drainage area so that the water from the ouffall will not seep into the ground and travel to the tumulus area.…”

Section: Radiological and Chemical Resultsmentioning

confidence: 99%

Active Sites Environmental Monitoring Program: FY 1990 annual report

Wickliff¹,

Morrissey²,

Ashwood³

1991

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This report was prepared as an account of work sponsored by an agency of the United States Governrr.ent.Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completenesa, or usefulness of any information,apparatus, product, or proceedsdieclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer,or otherwise, does not necessarily constitute or imply its endorsement, recommendation,or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

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“…Because the influent groundwater is up-gradient from the source it is uncontaminated and can be disposed at any convenient point. Case Study 3-3 illustrates an example at WAG 6 at ORNL where a french drain was used successfully to manipulate the shape of the potentiometric surface (Davis et al, 1985;Davis and Marshall, 1988). However, a companion measure taken at this site to control infiltration was installation of a clay cap.…”

Section: Modifying the Hydraulic Gradient With Drainage Structuresmentioning

confidence: 99%

Enhanced Attenuation: A Reference Guide On Approaches To Increase The Natural Treatment Capacity Of A System

Vangelas¹

2006

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an alternative project at the Savannah River Site designed to develop cost effective and environmentally protective technical solutions for the challenge of large and complex plumes of chlorinated volatile organic compounds (cVOCs) at DOE sites. The project builds upon the current U.S. Environmental Protection Agency (EPA) protocol and directive (EPA, 1998(EPA, , 1999 for monitored natural attenuation (MNA). The DOE effort focuses on three major technical thrust areas: mass balance, enhanced attenuation (EA), and innovations in characterization/monitoring. Each of these three topics is supported by a broad-based group of recognized technical experts and each group currently is developing an interim report related to the topic area. By introducing the concepts of mass balance and EA, along with the technical basis and documentation for these concepts, the project is working toward a goal of providing new and powerful tools for transitioning from active remediation to a protective long term monitoring state. This project is a departure from classical MNA in that its central theme is to take an active part, as needed, to achieve a favorable balance between the release of contaminants from sources (source loading) and processes that destroy or retard migration of contaminants in resultant plumes (attenuation capacity of the system). OBJECTIVESThe objective of this document is to explore the realm of enhancements to natural attenuation processes for cVOCs and review examples that have been proposed, modeled, and implemented. We will identify lessons learned from these case studies to confirm that enhancements are technically feasible and have the potential to achieve a favorable, costeffective contaminant mass balance. Furthermore, we hope to determine if opportunities for further improvement of the enhancements exist and suggest areas where new and innovative types of enhancements might be possible. TARGET AUDIENCEThe intended audience for this reference guide includes state and federal regulators, stakeholders, and environmental managers, as well as environmental technology professionals. Although this diverse group is technically astute, not all users of the document will be subject-area experts for the various technologies discussed. This fact poses a significant challenge to achieve an appropriate level of technical detail. To the extent possible, enhancement technologies are covered succinctly in the main body of the document. However, supplemental information on many enhancements has been included in Appendix A so that readers seeking additional information and references can find them easily. WSRC-STI-2006-00083, Rev ORGANIZATION OF THE REPORTAn overview of the purpose of the document is presented in Section 1. The conceptual framework and organizing principles of enhancements to natural attenuation of cVOCs in the subsurface are presented in Section 2. This section contains a summary discussion of different classes of enhancements and the concept of enhancement zones is introduced. The objective of Sectio...

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Water Diversion at Low‐Level Waste Disposal Sites

Cited by 6 publications

References 10 publications

Active Sites Environmental Monitoring Program: Mid-FY 1991 report

Active Sites Environmental Monitoring Program: Mid-FY 1991 report

Active Sites Environmental Monitoring Program: FY 1990 annual report

Enhanced Attenuation: A Reference Guide On Approaches To Increase The Natural Treatment Capacity Of A System

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