Plan calls for 99.8% of coal tar to be removed from Liberty Hill

A plan to remove virtually all the toxic coal tar dumped and buried on land along Lower Liberty Hill Road by 2015 was outlined by state environmental officials and an environmental engineer at a meeting attended by town officials and members of the public Wednesday evening.
An estimated 99.8 percent of the contaminated soil currently beneath four house lots will be removed over the period of two years under the plan now being considered, according to John Ash, vice president of GEI Consultants Inc., a Massachusetts-based geotechnical consulting firm. GEI has been retained by Liberty Utilities which now owns the properties at 69,We manufacture portable hardness tester including portable Rockwell, superficial Rockwell,Brinell, King Brinell,Pin Brinell,Webster and Barcol impressor . 77, 83 and 87 Liberty Hill Road, and is the latest corporate successor to the gas utility responsible for the dumping of the coal tar in 1952 in what was then a sand and gravel pit. Ash said he expects 45,000 cubic yards of tainted soil will need to be removed in the multimillion-dollar clean-up.
He said the actual removal is expected to begin in the spring or summer of 2014 and would take two construction seasons to complete. No work will take place at the site during the winter of 2014-15,The Spectrophotometer is an instrument which measures the amount of light of a specificed wavelength which passes through a medium.Highly capable, 3-axis non-contact video measuring machine, suitable for both simple shop-floor quality control and advanced manufacturing inspection applications ... he explained.
Michael McCluskey, an engineer with the state Department of Environmental Services' Waste Management Division, said DES's goal is to remove the contaminated soil "to the greatest extent practicable."
"We are talking about moving ahead with something that will be of benefit to the community," he told the audience of about 30 people.
Mary Casey, environmental program manager for Liberty Utilities, said it was still too early to project exactly how much the clean-up would cost the utility.profile projector is a shop tool used by designers and quality control technicians to view the profile of small machined parts as magnified image on screen. But she noted that a few years ago some were estimating the cost could reach about $13 million.
Ash said the first phase of the three-year project should begin in March when 50 additional test borings will be drilled around the supine figure-eight-shaped site in order to give scientists and engineers more precise data on the location and concentration of the coal tar deposits. Once the results of the test borings have been analysed,The Carbon Fiber Composite Material Sports accessories in Sports Equipment. Journal, Advanced Materials Research (Volumes 341 - 342). permits will be applied for some time during the summer. Barring any problems in the permitting process,Our full range of portable ultrasonic Flaw Detector (UT) provides unmatched capabilities for locating discontinuities and other flaws. work to select contractors to do the work will take place next winter. A pre-construction public meeting will take place during that time and the actual removal work will being in the spring of 2014.
"This project is not that simple," Ash said. He expected that heavy excavation equipment will need to dig as deep at 55 feet in some spots to get to some of the coal tar deposits. Removing 45,000 cubic yards of material will entail several thousand dump truck loads and Ash predicted that because of all the truck traffic Lower Liberty Hill Road "will take a beating."