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Borehole Logging Articles & Analysis
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The Groundwater Modeling Problem Nobody Talks About There are roughly 60,000 leaking underground storage tank (LUST) releases in the EPA's active remediation backlog, and over 1,343 active Superfund sites on the National Priorities List.(1,2) The average remediation timeline for both exceeds 10 years.(3) Most of these sites share one thing: either no numerical groundwater model at all, or a ...
ByLiORA
Modern land development, infrastructure, and remediation projects rely on two distinct but connected streams of information: engineering-focused ground data and environmental condition data. While both come from the same physical site, they serve very different decision-making purposes. Engineering datasets focus on whether land can safely support structures, roads, foundations, and earthworks. ...
Environmental programs today generate more data than ever: groundwater and surface-water monitoring, lab results, emissions testing, borehole logs, and field observations across multiple sites. Many organisations still manage this through spreadsheets, PDFs, and legacy systems — and it’s becoming a serious operational risk. ...
The site is associated with a very shallow water table and a network of actively maintained dikes. NMR borehole logging measurements were performed using Vista Clara’s Dart™ DP140N (Numax) and DP140J (JMax) direct push probes. ...
When your environmental data is handled by multiple team members, labs, and stakeholders, it can be easy to feel unsure about its quality. On top of that, you need to cross-check against regulatory requirements. Reviewing and editing your data takes time, leading to project delays and compromising efficiency. To improve your data confidence, here are some steps you can keep in mind: Automation: ...
As an environmental data expert, can you share your perspective on the remediation field and how your technology can be leveraged to improve the way in which the industry works? One of the biggest challenges we see across our industry is the retention of environmental monitoring data and access to it. For instance, contractors often share data with multiple stakeholders, whether as part of a ...
The textbook approach to new or legacy spills is to ensure that you have a vertical and horizontal delineation of the pollutants. This understanding of how deep and wide your pollutant has travelled is essential before you can begin any remediation, restoration, or reclamation process. The rationale for this approach is that we should not begin a remediation process until we have enough ...
ByLiORA
When your environmental data is handled by multiple team members, labs, and stakeholders, it can be easy to feel unsure about your data quality. On top of that, there's the need to cross-check against regulatory requirements. Manually reviewing and editing your database takes time, leading to project delays and compromising your efficiency. To improve your environmental data confidence here's ...
Vista Clara is pleased to play a key role in the comprehensive East River Experimental Watershed study conducted near Crested Butte, Colorado by providing advanced NMR geophysical investigation capabilities, including GMR™ non-invasive NMR surface measurement, along with both Javelin® and Dart™ portable NMR borehole logging. The study, which ...
Previously, GWAII used dedicated borehole logging software to create borehole logs (a record of each test pit/borehole, including data about soil types, strata depths, samples collected, and other observations). ...
The United States has a long and proud history of environmentalism. From the first laws protecting land and rivers in the 19th century to more recent initiatives like the Clean Air Act and Clean Water Act, the US has been a leader in developing legislation to protect the environment. Today, the US leads the world in terms of total environmental spending, with an estimated $9 trillion spent on ...
With a 1.75 inch (44mm) diameter, Javelin Micro is the world’s first wireline NMR logging tool capable of logging 2 inch ID PVC boreholes. Field testing was conducted at the Moab Uranium Mill Tailings Remedial Action (UMTRA) site in Moab, UT, in conjunction with a project that used the Javelin Slim 2.38 inch logging tool. ...
The Moab Uranium Mill Tailings Remedial Action (UMTRA) site is a former uranium ore-processing facility managed by the U.S. Department of Energy (DOE) in collaboration with Lawrence Berkeley National Lab (LBNL). The highest remediation priority for the site is hauling and disposal of mill tailings. Additional efforts of the site are focused on remediation of a uranium plume on the edge of ...
The Water Framework Directive advocates for the protection and improvement of water quality to achieve good ecological status. The UKTAG Water Framework Directive on Groundwater Hazardous Substances aims to provide guidelines and directions regarding the methods and procedures applied in the assessment, monitoring and control of risks associated with groundwater. It helps improve water quality ...
The Water Framework Directive (WFD) and other European Union directions play a significant role in formulating the United Kingdom’s environmental quality standards for freshwaters. The WFD is key to protecting groundwaters, lakes, rivers, estuaries and coastal areas. The Environment Agency is the body that develops, maintains and reviews freshwater standards in the United Kingdom. The UK ...
Regional Screening Levels (RSL) refers to risk-based concentrations developed by the United States Environmental Protection Agency using standardized equations which integrate exposure information assumptions with EPA’s toxicity data. RSLs aim to protect human health by assessing the risk the contaminants and other stressors pose on humans and ecological receptors. RSL tables are generic, ...
British Columbia Protocol 10 allows for developing water quality standards for cadmium and zinc and is applied in specific sites to protect freshwater aquatic life. The protocol provides a table containing precalculated and preapproved water quality standards for water hardness up to 500mg/L. The Canadian Council of Ministers of the Environment (CCME) provides cadmium and zinc standards, while ...
A bore log refers to a record detailing the in-situ conditions and aspects of geotechnical exploration activities such as drilling boreholes and mining. ...
A chemical quality assurance report refers to documentation that consist of planned and systematic actions focused on providing information about the accuracy, reliability, usability and comparability of analysis done on chemicals in a particular setting, for instance, those found in underground water in a site. It is generated based on the findings of research or analyses performed in an ...
Default Guidelines Values (DGVs) are developed according to risk assessment principles by using data derived from laboratory tests in clean water. The species sensitivity distribution (SSD) method is used in deriving DGVs for toxicants during water quality assessment. In circumstances where SSD is not applicable, the assessment-factor approach is used. It provides the best estimate of toxicant ...