contaminated sediment containment News

  • Contaminated Sediment Removal to begin at Pier 4 by the Port of Tacoma

    The Port of Tacoma began dredging contaminated sediments in Blair Waterway on September 15 in preparation to expand Pier 4. The Port detected a marine biocide, called tributyltin, while completing a dredging inspection for the site evaluation to expand Pier 4 for larger ships. The Port of Tacoma has agreed to complete the cleanup of the sediments, which the U.S. Environmental Protection Agency ...

  • EPA concludes season’s dredging of New Bedford harbor contaminated sediment

    This latest dredging effort started in May 2011 and focused on the northern cove on the Acushnet side of the Harbor and off-shore from the Titleist facility on Hadley Street in New Bedford. Approximately 11 acres of sediment were dredged this year, resulting in the removal of more than 21,600 cubic yards of contaminated sediment. Dredging activities will resume again in Summer 2012. The dredged ...

  • EPA proposes plan to remove contaminated sediment from bottom of Pompton Lake; public hearing slated for January 5

    The U.S. Environmental Protection Agency is encouraging members of the public to comment on its proposal to dredge approximately 68,000 cubic yards of mercury contaminated sediment from the bottom of a 26-acre area of Pompton Lake in the Borough of Pompton Lakes, New Jersey and remove 7,800 cubic yards of contaminated soil from a one-acre area adjacent to the lake. Mercury in the sediment and ...

  • EPA Proposes Revised Plan to Remove Mercury Contaminated Sediment from Bottom of Pompton Lake in Pompton Lakes, New Jersey

    The U.S. Environmental Protection Agency today proposed a new plan to remove mercury contamination from areas of Pompton Lake in Pompton Lakes, New Jersey, including the areas where the Acid Brook flows into the lake, called the Acid Brook Delta. Areas of the sediment on the bottom of the lake have become contaminated with mercury and lead that flowed down the Acid Brook into the lake. The public ...

  • Predicting contamination of farmland after flooding

    Floods and the resulting damage to agricultural and urban environments are likely to increase as a result of climate change. Major floods in Europe, such as those affecting the Elbe River in Germany in August 2002, can result in contamination by heavy metals of flooded farmland. Taking zinc as an example, a new modelling approach showed that there was more than a one in three chance that ...

  • $50 Million Cleanup of Ashtabula River Sediment Begins

    Untitled Document ASHTABULA, Ohio , June 5, 2006 (ENS) - Crews have begun to remove contaminated sediment from the bottom of the Ashtabula River, and today federal, ...

  • Microbes High in New Orleans Sediments After Hurricanes

    WOODS HOLE, Massachusetts (ENS) - In a new study documenting the microbial landscape of New Orleans and Lake Pontchartrain after Hurricanes Katrina and Rita, scientists report that sediments in interior portions of the city are contaminated with fecal microbes. They say this was a chronic condition in the area before the hurricanes, and that the resulting water quality in ...

  • Toxicity tests improve the assessment of harbour sediment quality

    Harbour sediments should be tested for their toxic effects on living organisms in addition to being subject to the chemical, physical and biological tests usually conducted to assess water quality, according to recent research from Portugal. This would provide a better environmental assessment of dredged material to help guide port authorities’ decisions on its disposal. Under the Water ...

  • Drinking water wells vulnerable to contamination

    New USGS groundwater studies explain what, when, and how contaminants may reach public-supply wells. All wells are not equally vulnerable to contamination because of differences in three factors: the general chemistry of the aquifer, groundwater age, and direct paths within aquifer systems that allow water and contaminants to reach a well. More than 100 million people in the United States ...

  • Monitoring heavy metal contamination in the German Wadden Sea

    Human activities, including industrial development along coastal areas, risk polluting the marine environment with heavy metals which can harm human health and aquatic life. A recent study has found elevated levels of metal pollution in the Jade area of the German Wadden Sea, but concludes that metal contamination of the sediments would not be expected to have harmful effects on the marine ...

  • Scientists suggest alternative source of arsenic contamination

    New research contradicts previous findings that arsenic contamination — an environmental crisis that affects more than 60 million people in the Bengal Basin — in groundwater may result from arsenic coming from man-made ponds, suggesting instead that it originates in sediments in aquifers. Groundwater ...


    By SciDev.Net

  • Preparations underway to remove toxic sediment from Lower Passaic River

    The U.S. Environmental Protection Agency (EPA) announced that work has begun on removing 200,000 cubic yards of contaminated sediment from an area of the Passaic River near the Diamond Alkali Superfund site located at 80 Lister Avenue in Newark, NJ. EPA and the U.S. Army Corps of Engineers are overseeing the work, which is funded and being performed by Tierra Solutions, Inc. The work is being ...

  • Banned contaminants can persist in environment for decades

    The contamination of hazardous substances in estuaries can have negative effects on biodiversity. Using experimentally supported indicators, this study analysed the environmental risks posed by 22 different contaminants in UK estuaries and coastal waters, finding that substances banned over 20 years ago continue to persist in the marine environment. Estuaries, where rivers meet the sea, are home ...

  • Fingerprinting method identifies petroleum contamination age and type

    Sitelab's fingerprinting procedure helps to identify the age or type of contamination on its clients' site at a fraction of the cost compared to conventional laboratory forensic testing. Field screening fingerprinting procedure Extract and prepare samples in solvent using Sitelab test kits; soil, sediment, water or oil (NAPL) samples can be analyzed. Test for GRO (BTEX): ...


    By Sitelab Corporation

  • Study reveals mercury contamination in Fish Nationwide

    Scientists detected mercury contamination in every fish sampled in 291 streams across the country, according to a U.S. Geological Survey study released today. About a quarter of these fish were found to contain mercury at levels exceeding the criterion for the protection of people who consume average amounts of fish, established by the U.S. Environmental ...

  • Fear at the tap: Uranium contaminates water in the West

    In a trailer park tucked among irrigated orchards that help make California's San Joaquin Valley the richest farm region in the world, 16-year-old Giselle Alvarez, one of the few English-speakers in the community of farmworkers, puzzles over the notices posted on front doors: There's a danger in their drinking water. Uranium, the notices warn, tests at a level considered unsafe by federal and ...


    By Associated Press

  • Plan to dump sediment on Great Barrier Reef OK`d

    The government agency that oversees Australia's Great Barrier Reef on Friday approved a plan to dump vast swathes of sediment on the reef as part of a major coal port expansion - a decision that environmentalists say will endanger one of the world's most fragile ecosystems. The federal government in December approved the expansion of the ...


    By Associated Press

  • Federal contaminated sites – the problem that won’t go away

    Thousands of abandoned industrial and military sites across Canada owned by the federal government, contain soils contaminated with PCBs, hydrocarbons, asbestos and heavy metals. Although remediation of these sites has been declared a key federal priority, the number of such sites in Canada remains surprisingly high and the rate of remediation of these sites remains low. Across Canada, ...


    By GLOBE Foundation

  • Keeping wastewater treatment self-contained...and portable

    In 2010, Active Water Sciences (AWS) of Palestine, Texas won the Wall Street Journal Innovation Award for their portable, self-contained wastewater-treatment system, the Water Phoenix. The ability to convert municipal wastewater into effluent that meets U.S. Environmental Protection Agency standards in less than 24 hours with a result of little to no sludge is a big deal, not only to the ...

  • Small boost of electricity aids natural clean-up of PCB contaminants

    Applying a low voltage to polluted river sediment can boost microbes’ natural ability to degrade harmful polychlorinated biphenyl (PCB) contaminants, according to a new study. The approach could be a cost-effective, sustainable strategy to bioremediate polluted sites. PCBs are persistent contaminants as they remain for long periods in the environment, particularly in water, soil and ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you