Groundwater Data Articles
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BOS 100 Takes on Carbon Tetrachloride at Oregon Site - Case Study
The subject property formerly operated as the Retail and Commercial Farm facility. The facility formerly stored and sold feed, farm equipment, and various farming chemicals (fertilizers, herbicides, and pesticides, etc.). In 2015, prior to the potential sale of the property, a Phase I Environmental Site Assessment (ESA) and subsequent Phase II ESA were undertaken. The Phase II ESA identified ...
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BOS 200, Hydrocarbons Application at an Active Gas Station - Case Study
Abstract: Trap and Treat® BOS 200® was applied at an active gas station in Europe with elevated dissolved phase contamination and NAPL impacts to protect the primary aquifer and cut off the dissolved phase plume from migrating off-site. Over the course of 4.5 years of monitoring, 92.4-99.9% reductions in Benzene were achieved in the treatment area (replaced) monitoring wells. Validation ...
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Using a Ternary Diagram or Ternary Plot in Geochemistry?
A ternary diagram, also known as a ternary plot or triangle plot, is a three-variable graph used to represent the composition of a mixture or system composed of three components. These ternary diagrams are typically displayed as equilateral triangles, with each apex representing one of the three components. The interior of the triangle represents all possible combinations of these components, and ...
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Project - Environmental Due Diligence in Ohio
Environmental Due Diligence and Risk Management Phase I Environmental Site Assessment Phase Ii Environmental Site Assessment Vapor Intrusion and Indoor Air Quality Issue(s): Former Drycleaners, Environmental Due Diligence (EDD), No Further Action (NFA), Rescinded NFA/Covenant Not to Sue (CNS) BLDI was retained by a national consulting firm in 2019 to assist with EDD work for a site at ...
By BLDI
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Managed aquifer recharge: A reliable solution to manage droughts?
Enhancing groundwater availability through MAR India, as the largest user of groundwater globally, has been promoting managed aquifer recharge (MAR) over the past two decades to mitigate the negative impacts of extensive groundwater use. Multiple states have been implementing MAR programs. Among them, Gujarat has been a frontrunner where MAR emerged as a grassroots initiative led by farmers and ...
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Geospatial Technology in Peatland Habitat Restoration – Part 2
In the second part of this series, we focus on: How Geospatial Technology can be used to aid peatland restoration; A detailed description of the GIS expertise and technologies offered by WKC’s team, with a particular focus on Unmanned Aerial Vehicles (UAVs) and how data captured using drone technology can be used for analysis. UAV’s – A realm of possibilities In order to ...
By WKC Group
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Discharge Measurement on Small Channels - Cases Study
To monitor water discharge on a small stream, Geolux has installed HydroStation - highly integrated hydrological monitoring station that consists of radar-based water level sensor, surface velocity radar, Lithium battery pack, solar panel, Geolux HydroCam camera and GPRS datalogger. The station is installed on a bridge above the channel, to measure water level and total discharge. The measurement ...
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WRD Secures Sustainable Water Independence with Continuous Groundwater Monitoring
Overview A Southern California groundwater management agency is capitalizing on the latest remote water monitoring technology to simplify and expand access to continuous groundwater data used to ensure a sustainable water future for its service area. Challenge The Water Replenishment District (WRD) is responsible for monitoring and testing groundwater throughout a 420-square-mile region of ...
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What is a bore log?
A bore log refers to a record detailing the in-situ conditions and aspects of geotechnical exploration activities such as drilling boreholes and mining. The log information needed to create a bore log is obtained through visual inspection of samples obtained from the geotechnical process. It is also obtained through geophysical measurements made along the borehole axis by using special logging ...
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Project - Southeast Collector Sewer Environmental Assessments
Client: Tom Guoth, GHD Ltd. (formerly Conestoga-Rovers & Associates) Ultimate Client: Regional Municipality of York Key Personnel: D. Kassenaar, E.J. Wexler, J. Ford, M. Takeda Earthfx developed a 3-dimensional groundwater flow model to analyze the impacts of construction dewatering for the Southeast Collector (SEC) Trunk Sewer on groundwater and stream baseflow. The work was done in support ...
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El Guapo Dam (Venezuela, 1999) - Case Study
Construction of El Guapo Dam began in 1975 and was completed in 1980. The dam is 197 feet tall and stores 114,000 acre-feet of drinking and irrigation water for the Barlovento Region in the state of Miranda, Venezuela. Because bedrock is deep (approximately 65 feet below the original ground surface), the embankment was built on a sandy gravel soil foundation. An elastoplastic cutoff wall extends ...
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BC Protocol 9 Background Concentrations in Groundwater
The British Columbia Protocol 9 for contaminated sites is used in the establishment of groundwater local background concentration. The concentrations are utilized for investigating and remediating contaminated sites in circumstances whereby the concentrations of substances that occur naturally exceeds the general numerical water standards of the CSR. The protocol was developed in pursuance of ...
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Hyd / Met Station in Tupras Izmit Refinery, Turkey - Case Study
The delivered system consists of meteorological and hydrological sensors and data logging equipment for measuring parameters that are of importance for operations in the harbour. Meteorological sensors (wind speed, direction and air temperature) are mounted on a Sensor Cross Arm with a short mast that is placed on the roof of a nearby building (ATEX zone 2). A single cable connects all the ...
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Hyd/Met Station at Gothenburg Harbour, Sweden - Case Study
This delivered system consists of meteorological and hydrologic sensors and data logging equipment for measuring parameters that are of importance for operations in the harbour. Meteorological sensors are mounted on a Sensor Cross-Arm with a short mast that is mounted on an existing structure. A single cable connects all the sensors on the cross-arm to a data logger. The meteorological sensors ...
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How do you test for data trends?
Introduction A data trend denotes a correlation that exists between concentration and time or spatial location. It can also refer to a variation in the characteristics of a population with another variable in a predictable fashion. Data trends can either take an increasing, decreasing or cyclic format—this article address how to test for data trends with particular emphasis on Linear ...
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Reduce site visits and save costs with the OTT ecoLog 1000
Groundwater measurements on site are time-consuming and cause easily avoidable costs. The same applies to maintenance visits to the device. When developing our new OTT ecoLog 1000 groundwater data logger, Product Manager Peter Schaeffeler and his team had a clear goal: To make measurement, data transmission and maintenance as efficient, convenient, safe and cost-saving as possible. Based on the ...
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Groundwater data essential for nature development in Cortenoever - Case Study
Client Province of Gelderland Performed by Eijkelkamp Soil & Water Country The Netherlands The Province of Gelderland is working with the Directorate-General for Public Works and Water Management (Rijkswaterstaat), the Forestry Commission (Staatsbosbeheer), and the municipality of Brummen on a nature development plan for the Cortenoever hamlet. The current area will be designed in such a ...
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What is a CAS Registry Number?
The Chemical Abstract Service (CAS) is part of the American Chemical Society, and it is used to maintain a database of chemical compounds, substances, and alloys. The CAS database contains over 100 million different chemical compounds. Each CAS entry is identified by a specific number called CAS Registry Number (Cas.org, 2018). CAS Registry Number refers to a maximum of ten digits which are ...
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Karowe Mine Groundwater Flow Model and Predictive Dewatering Simulations - Case Study
Project Description Karowe Mine, located approximately 16 kilometers (km) southwest of the town of Letlhakane, is a diamond mine where the second largest diamond ever found on record, with a weight of 1,111 carats, was discovered. This project involved simulating mine dewatering and excavation to evaluate future dewatering requirements, as well as providing guidance for future monitoring borehole ...
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Future of mobile data communication in Europe, Quo vadis?
Recently, there have been many reports in the media about changes in the mobile communications landscape. It is to be assumed that mobile phone providers will soon or in some cases dismantle or shut down their 3G network – also known as UMTS – today already. Many countries discontinue this service completely and some reduce availability, e.g. in Switzerland 3G it will remain, but ...
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