Plans and Practices for Groundwater Protection at the Los Alamos National Laboratory Final Report (2007) / Chapter Skim
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6 Findings and Recommendations
6 Findings and Recommendations
Pages 63-70
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From page 63... ...
. While the groundwater protection program began under mandate from thickness of the vadose zone and the depth of the regional the New Mexico Environment Department (NMED)
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From page 64... ...
Specifically this means knowing the site's inventory of contaminants and where they are.2 FiNdiNgs aNd recommeNdaTioNs To address Most contaminants are evidently still in or near their sources; The Task sTaTemeNT a sizeable fraction of some have migrated into the vadose zone; and a small fraction are in the regional aquifer. This This section gives the detailed findings and recommeninformation needs to be quantified and presented succinctly.
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From page 65... ...
Selected sites should be transport pathway. characterized by field analysis when historical infor mation is insufficient to determine quantities of major LANL should continue to develop surface water and contaminants disposed and to confirm the degree of sediment monitoring programs.
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From page 66... ...
LANL carried out its Hydrogeologic Workplan from 1998 Recommendation: LANL should add a sitewide perthrough 2004 to better characterize the site's hydrogeology and the potential pathways for contaminant transport. The spective to its future groundwater monitoring plans.
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From page 67... ...
taminant pathways through the vadose zone and into the LANL's efforts to understand the role of geochemistry in regional aquifer, as follows: • Mathematical models that incorporate the uncer- contaminant migration have not kept pace with efforts to understand hydrology. The committee found a lack of tainties from alternative conceptual models should basic, site-specific geochemical data to support LANL's underpin plans for design and operation of the assumptions about the relative immobility of important sitewide monitoring system.
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From page 68... ...
LANL's future plans for sitewide monitoring, this work The committee's statement of task posed two questions would include: • Determining the nature of interactions among regarding the reliability of data produced in LANL's current monitoring program: materials proposed for use in constructing moni toring wells and the types of geological media that 1. Is the laboratory following established scientific LANL intends to monitor, • Quantitative measurement of sorption of con practices in assessing the quality of its groundwater monitoring data?
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From page 69... ...
regional groundwater monitoring wells and water Drilling under specific conditions and sampling require- supply wells routinely to improve the statistical basis for ments can lead to exceptions to the above, and adapting to reporting any increases above background. circumstances will be necessary.
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From page 70... ...
0 PLANS AND PRACTICES FOR GROUNDWATER PROTECTION AT THE LOS ALAMOS NATIONAL LABORATORY coNclUdiNg remarks LANL's Quality Assurance Project Plan should enforce the documentation of any and all instances where it is LANL's groundwater protection program is at about its believed that chemicals or radionuclides detected in temporal midpoint, continuing for another eight years until groundwater are not the result of LANL operations, e.g., 2015. The Consent Order establishes an enforceable process naturally occurring or anthropogenic contaminants or and schedule for the program.
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