Groundwater Testing Articles
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Continuous Water Quality Data Brings New Perspective to Pumping Tests
Continuous Water Quality Data Brings New Perspective to Pumping Tests Overview Looking for a more efficient and reliable method of collecting, transmitting and analyzing data, A&H Well Services designed a custom system using several technologies to expand their capabilities and give customers real-time access to step test and pumping test data. Challenge When Andrew Peters left the oil ...
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Testing of Concrete Pipe Sewer Lines
American Society for Testing and Materials is an international standard. ASTM standards are applicable by individual, companies and other institutions around the world. This standard is not mandatory but it can be supported by law of the government. This voluntary standard is applicable for materials, products, system and services. However, ASTM can serve for infiltration and exfiltration ...
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WA Assessment levels for Soil & Sediment
Assessment levels for Soil and Sediment in Western Australia were adopted by the Department of Environment and Conservation (DEC) to provide measures which are used in determining whether sites are contaminated. The assessment covers substances which threaten human health and the environment. It is therefore risky if the level of such substances exceeds the assessment levels, implying that it has ...
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Risk Assessment and Brownfields: Determining Exposure to Site Contaminants
The USEPA’s Brownfields Program USEPA’s Brownfields Program was established to facilitate the rehabilitation of contaminated property for redevelopment. EPA has set forth criteria that must be met before a revitalized property can be used for residential, commercial or industrial purposes. The focus of these criteria is the long-term protection of residents, employees or visitors of ...
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Quantifying the Effect of Localized Depressurization on a Deep Underground Ore Body at the Mcarthur River Mine through Cross Hole Hydraulic Testing and Groundwater Modeling
Abstract: The McArthur River mine in northern Saskatchewan is the largest single producer of uranium in the world. Most of the ore is extracted by raisebore mining methods at depths of 530 to 600 m below ground surface where pore pressures in the fractured host sandstone and gneiss are on the order of 5 MPa. Currently, ground freezing is used to isolate the ore from ground-water sources. ...
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New City Development in Atlanta - Case Study
Location: 725 Ponce De Leon, Atlanta, GA GC: Brasfield & Gorrie Revenue: $450,000.00 Project Dates: 2017-2018 SUMMARY: Demolition of the infrastructure followed by construction of a new 3-level below grade parking garage as part of construction of a multi-use office and shopping development. CHALLENGE: An excavation exceeding 20 feet deep which is at, or in some areas below, ...
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Risk Assessment and Contaminated Properties: Determining Exposure to Site Contaminants
USEPA’s Brownfields Program was established to facilitate the rehabilitation of contaminated property for redevelopment. EPA has set forth criteria that must be met before a revitalized property can be used for residential, commercial or industrial purposes. The focus of these criteria is the long-term protection of residents, employees or visitors of a new facility. There are numerous ...
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How to set up a groundwater monitoring test site
When it comes to groundwater monitoring, testing the water often requires the creation of a borehole at the test site to reach the water below. The process of creating a safe and secure site for everyone involved can sometimes be a lengthy process. The size of the borehole, which drill to use and the response zone are just a few of the considerations that will need to be taken into account ...
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From black past to green future - Case Study
Project Why monitoring groundwater is vital for the municipality of Heerlen. Client Municipality of Heerlen Country The Netherlands Background to installing the monitoring network ‘It’s become steadily busier here underground. It’s essential to plan well. And that’s what occupies us daily in Heerlen municipality’s Spatial and Economic Development department. ...
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Realizing Petroleum Hydrocarbon Destruction via Biostimulation Alone; Importance and Benefits of Biofilm Development
Proof-of-Concept study to evaluate efficacy of biostimulation additive TPHenhanced to enhance native heterotrophic bacteria populations ability to degrade petroleum hydrocarbon contaminants (PHCs) under anaerobic conditions. State Agency wish low-impact low-cost strategy to sustainably remediate remote/legacy PHC impacted sites without Oxygen (O2) and/or aboveground support equipment. Site former ...
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Oldcastle Helps Clean-Up Santa Monica with Panel Vault Cistern - Case study
Project Overview Surf’s up and clean in Southern California thanks to Oldcastle and the Santa Monica “Clean Beaches” stormwater cistern. Located at the base of the world-famous Santa Monica Pier, the Deauville basin will be used to harvest up to 1.6 million gallons of stormwater runoff from the pier’s downtown drainage basin. The harvested runoff will then be diverted ...
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Application of ferrates for Arsenic removal from groundwater
Ferrates are a general name for compounds of iron in a high oxidation state - Fe(IV), Fe(V) and Fe(VI), which show highly oxidizing effects and form non-toxic ferrous oxides and oxohydroxides that can act as coagulants. Laboratory tests have confirmed an interesting application potential for these compounds in the area of water treatment technologies. In 2014 an affordable technology for ...
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Air sampling/testing at Construction sites
Hazardous Materials at Construction Sites Hazardous materials such as silica, lead, metals, pesticides, chemicals, and gases are often found on construction sites. Where ground or groundwater testing identified hazardous materials that may be carried off-site during excavation or just routine construction activities where dust or fumes may be generated, air sampling is necessary to protect ...
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Health Hazards at Construction Sites
When we think of construction sites, especially those involving infrastructures like bridges, tunnels, and highways, we usually picture heavy equipment like bulldozers, excavators, steamrollers and heavy-duty dump trucks. These visible signs of construction activity tend to make us think more about safety problems than of health hazards. But the reality is that there can be just as many, if not ...
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Why You Should Monitor Groundwater?
What is groundwater? Groundwater is water that is stored below the earth’s surface. When rain or other sources of water come into contact with the ground, the majority of it travels below the surface. Though much of this moisture is then absorbed by plants or returned to the atmosphere (through infiltration), some water will travel deeper beneath the surface – where it reaches and ...
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Water quality testing: solutions from catchment to waste
Globally, over 80% of the wastewater generated by society flows back into the environment without being treated or reused.1Clean water is an essential part of daily life, from catchment all the way through to wastewater treatment, therefore analysis throughout the whole cycle is crucial. Whether in lakes, pipes, or bottles, we can accompany you with our range of instruments, test kits and ...
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Preparation of slow-releasing oxygen materials and study on their properties
Slow-releasing oxygen materials were prepared to overcome some limitations regarding the low dissolved oxygen (DO) concentration and the low efficiency of in-situ purification in groundwater. Tests on slow-releasing oxygen materials that could be used to change the reductive environment in groundwater by slowly releasing oxygen were carried out. Oxygen-releasing laboratory experiments were ...
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Treatment of arsenic-contaminated water using in-line electrolysis, co-precipitation and filtration in Costa Rica
A novel treatment was tested with groundwater to investigate its arsenic removal under natural conditions. The system utilised in-line electrochlorination to oxidise water constituents without the need for external chemical supply. The oxidised arsenic and iron co-precipitated and were filtered via Greensand Plus™. The filter was catalytically active and provided an emergency oxidant. The ...
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Sustainability of decentralized wastewater treatment technologies
In many Countries, small communities are required to treat wastewater discharges to increasing standards of lesser environmental impacts, but must achieve that goal at locally sustainable costs. While biological membrane treatment (membrane bio-reactors (MBRs)) is quickly becoming the industry standard for centralized wastewater treatment plants, and would also be ideally suited also for ...
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Meeting Melbourne's future demand for water using aquifer storage and recovery
Melbourne is one of the fastest growing cities in Australia. City West Water (CWW) has developed an Integrated Water Cycle Management (IWCM) Strategy which includes the development of aquifer storage and recovery (ASR) schemes to store recycled water and storm water to assist with meeting future growth, where these schemes can be demonstrated to be viable and cost effective. The investigation ...
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