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Title: Reaching Site Closure for Groundwater under Multiple Regulatory Agencies

Abstract

Groundwater at the Connecticut Yankee Atomic Power Company (CYAPCO) Haddam Neck Plant (HNP) requires investigation of both radionuclides and chemical constituents in order to achieve closure. Cleanup criteria for groundwater are regulated both by federal and state agencies. These requirements vary in both numerical values as well as the duration of post remediation monitoring. The only consistent requirement is the development of a site conceptual model and an understanding of the hydrogeologic conditions that will govern contaminant transport and identify potential receptors. To successfully reach closure under each agency, it is paramount to understand the different requirements during the planning stages of the investigation. Therefore, the conceptual site model, groundwater transport mechanisms, and potential receptors must be defined. Once the hydrogeology is understood, a long term groundwater program can then be coordinated to meet each regulatory agency requirement to both terminate the NRC license and reach site closure under RCRA. Based on the different criteria, the CTDEP-LR (or RSR criteria) are not only bounding, but also requires the longest duration. As with most decommissioning efforts, regulatory attention is focused on the NRC, however, with the recent industry initiatives based on concern of tritium releases to groundwater at other plants, itmore » is likely that the USEPA and state agencies may continue to drive site investigations. By recognizing these differences, data quality objectives can include all agency requirements, thus minimizing rework or duplicative efforts. CYAPCO intends to complete groundwater monitoring for the NRC and CTDEP-RD by July 2007. However, because shallow remediations are still being conducted, site closure under USEPA and CTDEP-LR is projected to be late 2011.« less

Authors:
; ;  [1];  [2]
  1. MACTEC, Engineering and Consulting, Inc., 511 Congress Street, Portland, ME 04112 and 107 Audubon Road Suite 301, Wakefield MA 01880 (United States)
  2. Connecticut Yankee Atomic Power Company, 362 Injun Hollow Road, East Hampton, CT 06424 (United States)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, Illinois 60526 (United States)
OSTI Identifier:
21144211
Resource Type:
Conference
Resource Relation:
Conference: DD and R 2007: ANS Topical Meeting on Decommissioning, Decontamination, and Reutilization 2007, Chattanooga, TN (United States), 16-19 Sep 2007; Other Information: Country of input: France; Related Information: In: Proceedings of the 2007 ANS Topical Meeting on Decommissioning, Decontamination, and Reutilization - DD and R 2007, 336 pages.
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CLOSURES; CONNECTICUT; DECOMMISSIONING; GROUND WATER; LICENSES; MONITORING; NUCLEAR FACILITIES; PLANNING; REMEDIAL ACTION; TRITIUM

Citation Formats

Glucksberg, N, Shephard, Gene, Peters, Jay, and Couture, B. Reaching Site Closure for Groundwater under Multiple Regulatory Agencies. United States: N. p., 2008. Web.
Glucksberg, N, Shephard, Gene, Peters, Jay, & Couture, B. Reaching Site Closure for Groundwater under Multiple Regulatory Agencies. United States.
Glucksberg, N, Shephard, Gene, Peters, Jay, and Couture, B. 2008. "Reaching Site Closure for Groundwater under Multiple Regulatory Agencies". United States.
@article{osti_21144211,
title = {Reaching Site Closure for Groundwater under Multiple Regulatory Agencies},
author = {Glucksberg, N and Shephard, Gene and Peters, Jay and Couture, B},
abstractNote = {Groundwater at the Connecticut Yankee Atomic Power Company (CYAPCO) Haddam Neck Plant (HNP) requires investigation of both radionuclides and chemical constituents in order to achieve closure. Cleanup criteria for groundwater are regulated both by federal and state agencies. These requirements vary in both numerical values as well as the duration of post remediation monitoring. The only consistent requirement is the development of a site conceptual model and an understanding of the hydrogeologic conditions that will govern contaminant transport and identify potential receptors. To successfully reach closure under each agency, it is paramount to understand the different requirements during the planning stages of the investigation. Therefore, the conceptual site model, groundwater transport mechanisms, and potential receptors must be defined. Once the hydrogeology is understood, a long term groundwater program can then be coordinated to meet each regulatory agency requirement to both terminate the NRC license and reach site closure under RCRA. Based on the different criteria, the CTDEP-LR (or RSR criteria) are not only bounding, but also requires the longest duration. As with most decommissioning efforts, regulatory attention is focused on the NRC, however, with the recent industry initiatives based on concern of tritium releases to groundwater at other plants, it is likely that the USEPA and state agencies may continue to drive site investigations. By recognizing these differences, data quality objectives can include all agency requirements, thus minimizing rework or duplicative efforts. CYAPCO intends to complete groundwater monitoring for the NRC and CTDEP-RD by July 2007. However, because shallow remediations are still being conducted, site closure under USEPA and CTDEP-LR is projected to be late 2011.},
doi = {},
url = {https://www.osti.gov/biblio/21144211}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 15 00:00:00 EST 2008},
month = {Tue Jan 15 00:00:00 EST 2008}
}

Conference:
Other availability
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