subsurface contamination News
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Is oxygen overrated when it comes to in-situ hydrocarbon remediation? Let`s take a look at a few of the facts.
Fact: Many millions of dollars are spent annually to artificially add oxygen to the subsurface of fuel contaminated sites by either chemical or mechanical means. Most fuel-contaminated sites are naturally anaerobic, so oxygen is often added to stimulate the indigenous bacteria to “eat” the contamination. When the added oxygen is inevitably depleted again, the indigenous bacteria quit eating ...
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Tersus secures five patents for in-situ surfactant and chemical oxidant flushing
Advancing their strategic vision encompassing in-situ remediation, Tersus Environmental today announced a significant expansion of its global patent portfolio. Tersus has acquired the entire interest in five U.S. Patents. The patents relate to methods for remediating subsurface contaminants through the use of in-situ surfactant and chemical oxidant flushing for complete remediation of ...
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The importance of groundwater monitoring
Groundwater monitoring is an essential element in any environmental information system. Based upon validated groundwater monitoring data, information is derived on which decisions can be made. Constant monitoring provides the necessary data input for your smart environment and is basically the basis of the decision making process concerning spatial planning and climate change adaptation. As in ...
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Soil clean up underway at New England site
EPA has been working closely with the Rhode Island Dept. of Environmental Management (RI DEM) and local officials during the removal of potentially hazardous materials at the Providence Barrel Site in Smithfield, R.I. Excavation of contaminated soils began in May, 2008. Last week, the transportation and disposal of the contaminated soil from the immediate Site began to take place. This week EPA ...
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Vapor Intrusion Update
Vapor intrusion (VI) is a process by which chemicals in soil or groundwater migrate to indoor air above a contaminated site. VI first hit the regulatory scene in 1993 when people began to first realize that this was a primary pathway to be exposed to suburface contamination. As a result, requirements were initally established governing assessment and cleanup requirements for contaminated sites. ...
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Redevelopment of Brownfield Sites Gives Life to Wastelands
Last week, the U.S. Environmental Protection Agency (EPA) announced additional Brownfield grants to communities across the country. This money is coming from more than $76 million in EPA Brownfield investments recently announced by EPA Administrator Lisa Jackson. According the Environmental Protection Agency, “Brownfields are real property, the expansion, redevelopment, or reuse of ...
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EPA leads effort to contain jet fuel spill on Sand Island
Today, the U.S. Environmental Protection Agency issued a federal Clean Water Act order to ensure the continued cleanup of spilled jet fuel at a tank farm facility on the Sand Island Access Road in Honolulu. The order requires Airport Service Group International (ASIG), the facility operator, and Hawaii Fueling Facilities Corp., the facility owner, to proceed with cleanup work that will prevent ...
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New framework to assess brownfield development potential
Researchers have proposed a new framework to assess the potential for redeveloping large contaminated brownfield sites. The framework applies a range of spatial assessment methods to analyse remediation costs, economic value and the sustainability of different land-use types, and to recommend suitably mixed land-use options for redevelopment. Redeveloping brownfields can address health, ...
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News Brief: U.S. EPA Accepting Public Comments on Cleanup Plan for National Fireworks OU2 Superfund Site
The U.S. Environmental Protection Agency (EPA) and the Tennessee Department of Environment and Conservation (TDEC) will host a public meeting and begin accepting comments on its proposed plan to clean up the National Fireworks (OU) 2 Superfund Site. EPA’s proposed cleanup plan for the site consists of treating the contaminated groundwater and contaminated subsurface soil at the site using ...
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U.S. EPA reaches $3 million settlement to clean groundwater in Mountain View
The U.S. Environmental Protection Agency reached a settlement with CTS Printex, Inc. and ADN Corporation to complete the remaining groundwater contamination cleanup at the CTS Printex, Inc. Superfund site in Mountain View, Calif. The companies will spend a total of about $2 million on a system to monitor and treat low levels of contaminated groundwater remaining at the site. They will also ...
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Follow-up Tests Confirm Success of Enviro-Equipment Inc.’s Powdered Activated Carbon (PAC) CleanInject® Remediation System
Enviro-Equipment Inc., a leading innovator of in situ bioremediation solutions, announced today that a second round of groundwater samples has confirmed that the majority of wells treated with the patent-pending CleanInject® system have reached site specific target levels (SSTL). The S.C. Department of Health & Environmental Control (SCDHEC)-approved treatment, which involved injecting ...
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Computer simulations shed light on nanosized minerals
The red and blue images appear ghostly, like a fleeting glimpse of something that’s never been seen before — which is true. Using computer simulations, Berkeley Lab scientists have developed the first predicted images of water molecules surrounding a nanoparticle, in this case an iron-oxide mineral called hematite. The simulations indicate that the size and shape of the nanosized mineral ...
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EPA News Advisory: ASIG Sand Island Hawaii Fuel Spill Response Update 2/2/15
The U.S. Environmental Protection Agency and the Hawaii State Department of Health (DOH) continue response operations to recover spilled jet fuel at the Airport Service Group International (ASIG) facility on Sand Island Access Road in Honolulu. EPA is leading the response effort and working with DOH’s Hazard Evaluation and Emergency Response branch and ASIG Status of Response - 2/2/15 ...
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EPA News Advisory: ASIG Sand Island Fuel Spill Response Update 2/6/15
The U.S. Environmental Protection Agency and the Hawaii State Department of Health (DOH) continue response operations to recover spilled jet fuel at the Airport Service Group International (ASIG) facility on Sand Island Access Road in Honolulu. EPA is leading the response effort and working with DOH’s Hazard Evaluation and Emergency Response branch and ASIG. NEW- Please visit EPA’s ...
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TerraTherm`s Patented Thermal Remediation Heating Elements Obtain Electrical Testing Labs Mark
TerraTherm, a worldwide leader in the development and implementation of In Situ Thermal Remediation (ISTR) of organic contaminants in subsurface source zones, has recently become the first thermal remediation company in the industry to gain certification of a soil heating system. Through Intertek, one of the world's largest Testing, Inspection and Certification companies, TerraTherm's patented In ...
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EPA, DOJ and Indiana reach proposed $14 million settlement on Westville, superfund site
U.S. Environmental Protection Agency Region 5, U.S. Department of Justice, Indiana Department of Environmental Management and the Office of the Indiana Attorney General have reached a proposed settlement with a group of 13 potentially responsible parties who will pay for and complete the final phase of cleanup at the Cam-Or Superfund site in Westville, Ind. The group will provide $12 million to ...
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EPA Issues Amendment to Record of Decision for the Peoples Natural Gas Superfund Site in Dubuque, Iowa
EPA Region 7 has issued an amendment to the Record of Decision (ROD) for the Peoples Natural Gas Superfund Site in Dubuque, Iowa. EPA signed the original ROD for the site in January 1991 to address soil and ground water contamination. The selected remedy for the 1991 ROD was excavation and incineration of contaminated soils as well as ground water extraction, monitoring, and treatment of soils ...
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Amended Cleanup Decision for Kearsarge Metallurgical Corp. Superfund Site in Conway, N.H.
EPA has approved an amendment to the comprehensive cleanup plan to address contamination at the Kearsarge Metallurgical Corporation Superfund Site in Conway, N.H. The 2012 Record of Decision Amendment will provide a comprehensive approach for the site that addresses all current and potential future risks. The remaining remedial measures will prevent the migration of contaminants from the Site in ...
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EPA begins study of TCE contaminants at Carter Carburetor site
The U.S. Environmental Protection Agency Region 7 will begin a vapor intrusion study today at the Carter Carburetor Corporation site, 2000-2840 N. Spring St., in St. Louis to determine if trichloroethylene (TCE) vapors are present beneath the floor of the building. EPA's Mobile Lab, staffed by EPA contractors, will be on site for approximately two weeks collecting samples. The testing should ...
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MOE presents: provincial water monitoring networks
Dave Rudolph – "Emerging Needs for Temporal and Spatial Data Precision" Dave Rudolph, with the University of Waterloo, started the symposium off with a very thought provoking presentation on the value of data. Dave used case studies to illustrate how different factors impact the quantity and quality of water resources, and how a small change can affect these conditions quickly and ...
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