Ground Water Monitoring and Remediation最新文献

{"title":"State of the Practice Worldwide: Developing Approaches to Transition from Active Remediation to Monitored Natural Attenuation","authors":"David T. Adamson,&nbsp;Hiroko Hort,&nbsp;John T. Wilson,&nbsp;Charles J. Newell,&nbsp;Thomas E. McHugh","doi":"10.1111/gwmr.12702","DOIUrl":"10.1111/gwmr.12702","url":null,"abstract":"<p>A landmark National Research Council report from 2013 emphasized the need to transition to passive or less resource-intensive management strategies like monitored natural attenuation (MNA) at sites where pump-and-treat and active remedies are providing diminishing returns. While this report is now more than a decade old, the process for implementing this type of transition assessment is still not well understood by practitioners. The objective of this study was to help address this gap by developing a software tool (TA² Tool) that aids in gathering and analyzing data that are relevant for a site-specific transition assessment. The implications of site complexities on achieving remedial objectives are a key component of transition assessment. This free web-based tool has modules that perform quantitative assessment of concentration trends and project the remediation timeframe based on the current remedial approach. It has modules that predict how remediation timeframes are influenced by matrix diffusion to assess if additional remediation is warranted. Crucially, it includes modules that evaluate MNA as a transition technology, specifically by looking at plume stability, natural attenuation rates, and projections of plume concentrations at a downgradient point of compliance in the absence of further active treatment. This new tool complements existing resources on technology optimization and transitions, including ITRC guidance. The value of performing these types of assessments is highlighted through empirical data and case studies that show that it is not necessary to operate pump-and-treat systems in perpetuity and that many sites with these systems have either transitioned to other technologies or been closed.</p>","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"45 2","pages":"65-80"},"PeriodicalIF":1.3,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Managed Aquifer Recharge Questions Answered for Virginia's Potomac Aquifer: Response of the Sustainable Water Initiative for Tomorrow (SWIFT) Research Center, Suffolk, Virginia","authors":"Charles Job","doi":"10.1111/gwmr.12698","DOIUrl":"10.1111/gwmr.12698","url":null,"abstract":"","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"45 1","pages":"19-22"},"PeriodicalIF":1.3,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Global and Local Sensitivity Analysis of Heat Transport in Fractured Rock Using a Modified Implementation of the LH-OAT Method","authors":"Xiao-long Wu,&nbsp;Bernard H. Kueper,&nbsp;Kent Novakowski","doi":"10.1111/gwmr.12696","DOIUrl":"10.1111/gwmr.12696","url":null,"abstract":"<p>Thermal remediation of contaminated sites in fractured bedrock is complicated by the characterization and identification of heat transfer between fractures and matrix, and the complex interactions between the hydrogeological and thermodynamic parameters. A three-dimensional numerical model was applied to investigate these issues using global and local sensitivity analyses for the significance of six variables that potentially influence the heating performance in fractured rock. These variables include the radius and energy delivery strength of the heat source (which were used to study the scale effect and heating processes), the fracture aperture, fracture spacing, groundwater flow velocity, and the thermal conductivity of the rock matrix. A discrete Latin Hypercube-One-at-A-Time (LH-OAT) scheme is proposed and utilized as an experimental design and data analysis method for the discrete variables that apply to this case. The results show that at all four monitoring points within the heating area, the radius of the source and energy delivery strength are the most sensitive parameters. To minimize heat dissipation, additional heating wells are demonstrated to be effective for a small or pilot scale site (5 &lt; <i>r</i> &lt; 10 m), while the increase of energy delivery strength is more applicable for larger sites. Extra efforts should be invested to minimize heat dissipation when large fractures (2<i>b</i>&gt; 1600 μm) are identified in the heating area. Re-samplings and re-evaluations with one-way perturbation in both positive and negative directions are thus suggested to avoid biased results caused by perturbations that occur in only positive or negative directions.</p>","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"45 1","pages":"55-67"},"PeriodicalIF":1.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gwmr.12696","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Modeling and Evaluation of PFOS Retention in the Unsaturated Zone above the Water Table”","authors":"","doi":"10.1111/gwmr.12697","DOIUrl":"10.1111/gwmr.12697","url":null,"abstract":"<p>Hort, H.M., E.B. Stockwell, C.J. Newell, J. Scalia IV, and S. Panday. 2024. Modeling and evaluation of PFOS retention in the unsaturated zone above the water table. <i>Groundwater Monitoring &amp; Remediation</i> 44: 38–48. https://doi.org/10.1111/gwmr.12662</p><p>In page 3 of the “<i>Based on Newell et al. (2020), a retardation factor of 6.0 (at density = 2.6 g/cm³ and solid-liquid partition coefficient = 0.077 L/kg) was employed to account for PFOS sorption to the sand</i>.”, retardation factor of 6.0 was not implemented here but instead, we used retardation factor of 2.0 in saturated zone. The text should appear as follows:</p><p>“<i>Saturated zone retardation factor of 2.0 was used in the model to account for PFOS hydrophobic sorption. In unsaturated soils the retardation factor varies depending on the soil moisture</i>.”</p><p>We apologize for this error.</p>","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"45 2","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gwmr.12697","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Issue Information - ISSN page","authors":"","doi":"10.1111/gwmr.12530","DOIUrl":"10.1111/gwmr.12530","url":null,"abstract":"","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"44 4","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gwmr.12530","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Featured Products","authors":"","doi":"10.1111/gwmr.12691","DOIUrl":"10.1111/gwmr.12691","url":null,"abstract":"","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"44 4","pages":"109-110"},"PeriodicalIF":1.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing UV/SGM Photocatalytic PFAS Destruction Using a Lines of Evidence Approach","authors":"Hannah McIntyre,&nbsp;Thomas Wanzek,&nbsp;Elisabeth Hawley,&nbsp;John Merrill,&nbsp;Rula Deeb,&nbsp;Megan Hart","doi":"10.1111/gwmr.12695","DOIUrl":"10.1111/gwmr.12695","url":null,"abstract":"<p>A recent research article described a multiple lines of evidence approach to demonstrate the effectiveness of per- and polyfluoroalkyl substances (PFAS) remediation technologies. These lines of evidence were developed by an interdisciplinary group including academic researchers, practitioners, and vendors. This article provides a brief overview of the lines of evidence approach and presents a practical application to a validated PFAS treatment technology that utilizes ultraviolet-activated photocatalytic silica-based granular media (UV/SGM) to filter concentrated PFAS-containing liquids and achieve PFAS destruction. This case study illustrates the application of the lines of evidence approach and summarizes work done to validate an innovative PFAS treatment technology.</p>","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"45 1","pages":"23-29"},"PeriodicalIF":1.3,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic Storage, Release, and Enrichment of some Per- and Polyfluoroalkyl Substances in the Groundwater Table Fluctuation Zone: Transport Processes Requiring Further Consideration","authors":"Craig Divine,&nbsp;Kristen Hasbrouck,&nbsp;Bo Guo,&nbsp;Mark Brusseau,&nbsp;Jicai Zeng,&nbsp;Jesse Wright,&nbsp;Everett Fortner III,&nbsp;Steven Chapman,&nbsp;Jonathan Munn,&nbsp;Beth Parker,&nbsp;Bonnie Packer","doi":"10.1111/gwmr.12694","DOIUrl":"10.1111/gwmr.12694","url":null,"abstract":"&lt;p&gt;Per- and polyfluoroalkyl substances (PFAS) are a diverse group of contaminants that exhibit complex transport and fate behaviors that are becoming better understood (see McGarr et al. &lt;span&gt;2023&lt;/span&gt; for a recent literature review). For example, it has been shown that some PFAS sorb to sediments (e.g., Schaefer et al. &lt;span&gt;2021&lt;/span&gt;) and microplastics (e.g., Pramanik et al. &lt;span&gt;2020&lt;/span&gt;; Cheng et al. &lt;span&gt;2021&lt;/span&gt;; Scott et al. &lt;span&gt;2021&lt;/span&gt;), exhibit self-assembly behavior (e.g., Dong et al. &lt;span&gt;2021&lt;/span&gt;), and partition into non-aqueous phase liquids (e.g., McKenzie et al. &lt;span&gt;2016&lt;/span&gt;; Van Glubt and Brusseau &lt;span&gt;2021&lt;/span&gt;; Liao et al. &lt;span&gt;2022&lt;/span&gt;). Further, while many PFAS are resistant to biological degradation processes, others can act as precursors and transform into other terminal PFAS (Harding-Marjanovic et al. &lt;span&gt;2015&lt;/span&gt;; Mejia-Avendaño et al. &lt;span&gt;2016&lt;/span&gt;; LaFond et al. 2023; Holly et al. &lt;span&gt;2024&lt;/span&gt;). Recent research has highlighted that the behavior of PFAS in the unsaturated zone is particularly complex. One of the unique characteristics of many PFAS is their surfactant properties and affinity to air-water interfaces (e.g., Brusseau &lt;span&gt;2020&lt;/span&gt;; Brusseau and Guo &lt;span&gt;2022&lt;/span&gt;; Stults et al. &lt;span&gt;2022&lt;/span&gt;). As a consequence, PFAS adsorption at air-water interfaces strongly influences PFAS leaching from shallow source areas (such as fire-training areas [FTAs] where aqueous film-forming foams [AFFF] were applied) through the vadose zone, and associated mass discharge to the saturated groundwater zone (Guo et al. &lt;span&gt;2020&lt;/span&gt;; Schaefer et al. &lt;span&gt;2021&lt;/span&gt;; Zeng et al. &lt;span&gt;2021&lt;/span&gt;; Anderson et al. &lt;span&gt;2022&lt;/span&gt;; Brusseau and Guo &lt;span&gt;2022&lt;/span&gt;; Gnesda et al. &lt;span&gt;2022&lt;/span&gt;; Schaefer et al. &lt;span&gt;2022&lt;/span&gt;; Hort et al. &lt;span&gt;2024&lt;/span&gt;; Stults et al. &lt;span&gt;2024&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;Most of the understanding of PFAS transport behavior has been developed through controlled laboratory experiments and modeling evaluations and as more field data become available, this knowledge must be validated by the observed behavior of these contaminants in real world systems. In some cases, recent field data have illuminated important remaining knowledge gaps, highlighting the need for further study. In particular, we are unaware of any field investigations specifically designed to better understand how these compounds behave within the groundwater table (GWT) fluctuation zone (roughly defined as the zone between the seasonal high and low water table elevations). Because some PFAS preferentially accumulate at the air-water interface, it is expected that changes in moisture content and air-water interfacial area as a consequence of groundwater elevation changes will result in dynamic PFAS storage and release in the GWT fluctuation zone. This, in turn, may drive complex temporal changes in groundwater PFAS concentrations measured in monitoring wells and influence l","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"44 4","pages":"11-20"},"PeriodicalIF":1.3,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gwmr.12694","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SERDP and ESTCP Corner: Headlines from the Environmental Restoration Program Area","authors":"Sarah Mass","doi":"10.1111/gwmr.12693","DOIUrl":"10.1111/gwmr.12693","url":null,"abstract":"","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"44 4","pages":"104-106"},"PeriodicalIF":1.3,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highlight","authors":"","doi":"10.1111/gwmr.12692","DOIUrl":"10.1111/gwmr.12692","url":null,"abstract":"","PeriodicalId":55081,"journal":{"name":"Ground Water Monitoring and Remediation","volume":"44 4","pages":"107-108"},"PeriodicalIF":1.3,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}