Showing posts with label soil remediation. Show all posts
Showing posts with label soil remediation. Show all posts

Wednesday, October 17, 2012

Upstate New York Residents Question Environmental Quality of Legacy Site

By: Duane Craig

Regardless of what Watertown, N.Y. residents might want, the state’s Department of Environmental Conservation says it won’t be doing any more environmental testing at the former New York Air Brake site, according to this article.

Besides residents, public officials are also concerned about high cancer rates and other illnesses that affect the north side of that community. Of increasing concern, is the possibility of vapor intrusion into nearby homes from high levels of chemicals that have made their way into the soils beneath the homes. DEC says it won’t be monitoring any indoor air quality in the homes, however monitoring does continue at the site every year.

Reassurances from the DEC largely fell on deaf ears at a recent neighborhood meeting that was also attended by environmental activist Erin Brockovich. One resident who orchestrated the meeting has been disabled by a neurological disease and another resident who attended claimed he remembers dumping chemicals from the facility’s operations.

Those operations started in 1876 when Eames Vacuum Brake Co. was founded as a vacuum break manufacturer. It was making a new kind of pneumatic brake for railroads operating in the area, according to this historical account. In 1919 the company had 7,000 employees making horse-drawn cannons and then during World War II it was busy making tanks and military hardware. General Signal Corp. bought the operations in 1967 and by 1980 had 2,200 employees making parts for aerospace and defense contracts, heavy machinery and farm equipment. The business’ makeup gets a little murky after that as a portion of it was purchased by a German company that eventually moved its operations to North Charleston, S.C. Other portions of the business still owned by General Signal continued to operate in the area as a foundry and maker of railroad car brakes.

General Signal admitted in 1988 that it disposed of toxic chemicals in a landfill on the site. Ten years of testing and cleanup followed, so that today, drainage from the landfill collects in a pond where the water is treated before it is released, according to this article. At one time, toxic chemicals such as polychlorinated biphenyls, or PCBs, as well as trichloroethylene, or TCE, were present in two creeks that flow nearby. People in the area wonder today how much of those materials remain in the soils and continue to migrate to adjacent lands.

Wednesday, August 29, 2012

Maine Gas Spill Threats Show Signs of Diminishing

By: Duane Craig


Five thousand gallons of gasoline spilled on Maine’s Route 11 in 2011. As of the end of July 2012, the remediation effort has been scaled back, according to this report.

The accident happened when a tanker truck carrying more than 8,000 gallons of gasoline rolled over near Wallagrass and spilled about 5,000 gallons. As of mid-July 2012, 2,300 gallons of gasoline had been removed and because of diminishing returns from the southern vapor extraction system, the Maine Department of Environmental Protection shut it down July 12. The northern extraction system had previously been turned off, but weather conditions prompted the department to turn it back on.

The DEP is leaving monitoring wells in place for at least another year. One local well owner had elevated levels of contaminants associated with gasoline and the well has been fitted with a carbon filtration system. Still, the DEP may require new drinking water wells to be drilled.
There’s more information from the DEP about this accident here.

Tuesday, August 7, 2012

Cleanup at Aircraft Manufacturing Site Enters Final Stages


The contamination story on a 26-year-old site is winding down to what could be the final public comment period. The site, called the Boeing Wichita Site in Wichita, Kan., now has a draft Corrective Action Decision that tells what remediation will finally close the book on pollution left over from years of airplane construction, according to this report.

The site at 3801 Oliver St. and the surrounding area was home to aircraft manufacturing beginning in the 1930s. In 1985, Boeing noticed contamination while it was performing an environmental investigation. Originally, the source of the contaminants was suspected to originate solely at a Cessna plant nearby. But as more test wells were drilled, it became apparent the pollution was widespread. Next, private water wells came up contaminated in the 31st and Clifton Street area. The primary contaminants detected were tetrachloroethene (PCE); trichloroethene (TCE); cis-1, 2 dichloroethene (cis-1, 2-DCE); vinyl chloride (VC); benzene, toluene, ethylbenzene and xylene(s) (BTEX); and chromium, according to Kansas Department of Health and Environment documents.

To its credit, Boeing took an aggressive and active part in the investigations and remediation over the years, no doubt helping to prevent the site from falling under the Superfund program for lack of cleanup funds. The company currently operates “179 recovery wells, 195 monitoring wells and 9 air stripper sites.” It installed a “300-foot long by 30-foot deep groundwater interceptor trench to recover off-site groundwater contamination immediately upgradient of two springs ... at the northwest edge of the site,” and installed “more than a dozen air-strippers to remove TCE dissolved in recovered groundwater which is then discharged to the Arkansas River through a National Pollutant Discharge Elimination System (NPDES) permit or is treated at the Spirit Industrial Waste Treatment Plant (IWTP) and recycled for use in the Spirit plant.”
Besides continuing the air stripping operations, remedial action will also include bio-remediation in place and the maintenance of permeable reactive barriers to mitigate further spread of existing soil-based contamination. In cases where it’s necessary, remedial soil removal and disposal will be on the cleanup agenda.

Friday, September 10, 2010

Dirty NY Land Costs a Pile

September 4, 2010 - The city is spending at least another $4 million on its new public works campus on Foster Avenue after discovering a massive amount of contamination on the property.

City officials anticipated they would have to excavate fuel-soaked soil beneath its old public works buildings and garages as part of the original $21 million project.

But the extent of the contamination, mostly caused by long-buried fuel tanks, dwarfed expectations. Fuel and fuel-based oil was found 17 to 18 feet beneath the ground's surface to the tune of 41,000 tons of contaminated earth, said Commissioner of the Office of General Services Carl Olsen. Seven fuel tanks were unearthed, two of which were surprises.

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Monday, August 23, 2010

The Earth Will Move: Poisoned CT Neighborhood Braces For Epic Cleanup

August 22, 2010 - Think of it as the big scrape.

An entire neighborhood, poisoned for decades by industrial waste buried beneath homes, yards, schools and playgrounds, is poised for the largest residential cleanup in state history.

Starting Monday, the top four feet of earth in 18 square blocks will be scooped up and hauled away. Clean soil will replace it and trees, lawns, bushes and shrubs will be replanted. The whole process will take up to five years and 230 houses will be affected.

For the Newhall neighborhood, it’s a $60 million do-over.

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