Are you looking for used hydraulic cylinders, small hydraulic cylinders, hydraulic cylinder parts, or hydraulic cylinder seals? Do you need cross hydraulic valve parts, a hydraulic crimping machine, one of many used hydraulic presses, or hydraulic roll g
(May 20, 2010) Are you looking for used hydraulic cylinders, small hydraulic cylinders, hydraulic cylinder parts, or hydraulic cylinder seals? Do you need cross hydraulic valve parts, a hydraulic crimping machine, one of many used hydraulic presses, or hydraulic roll grooving machines? Are you searching for inexpensive air hydraulic jacks, hydraulic jack parts, or where to find used hydraulic cylinders? Visit the Hydraulic Cylinder Guide for free information now!
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Friday, May 21, 2010
Friday, May 7, 2010
Hydraulic fracking spells disaster
Despite industry claims that the rapidly expanding practice of hydraulic fracturing to extract natural gas from deep underground shale layers is “perfectly safe,” on April 15 the Pennsylvania Department of Environmental Protection fined Houston-based Cabot Oil and Gas $240,000 for causing the contamination of 14 residential water wells in Dimock Township, Pa.
The company was also ordered to plug three gas wells it was operating in the town, which sits atop the Marcellus Shale formation, and was banned from drilling in the area. One water well in Dimock exploded last year, and DEP inspectors witnessed gas bubbling up at the base of eight other wells in March. Despite the ruling, Cabot has plans to drill 100 new wells in Dimock this year.
Independent newsroom ProPublica has reported on 50 similar cases across Pennsylvania, including reports of fish kills, water and air pollution, fires, out-of-control flaring, human illnesses and animal deaths.
The concern over the safety of hydraulic fracturing has prompted calls for a moratorium on drilling in Pennsylvania. In the process, often referred to as fracking, 2 to 9 millions of gallons of water, mixed with sand and up to 250 chemicals, are pushed into underground shale layers to release natural gas.
In January the Pennsylvania state Legislature opened up 32,000 additional acres of state forest land to be leased for drilling. As a result, 692,000 acres of the 2.1 million acres of state forest land are now open for gas wells. During a recent push to expand the practice into the Delaware River basin, the Philadelphia City Council was pressured to pass a resolution on March 25 calling for an environmental impact statement before any new permits are issued.
Fracking has been in use for a number of years throughout the U.S., particularly in the Southwest. Five natural gas sites border the town of Dish, Texas, in a quarter-mile complex. In nearby Fort Worth, Texas, 1,400 wells have been drilled in urban areas, many near schools and residential centers.
Speaking at a meeting at Temple University’s Department of Civil and Environmental Engineering on April 16, Dish Mayor Calvin Tillman described how carcinogenic air pollution from natural gas drilling has damaged the quality of life in his town of 180 residents. The town sits atop the Barnett Shale, a geological formation similar to the Marcellus Shale.
Using his own money, Tillman has been traveling to Pennsylvania and New York to warn about the dangers of the gas boom. In his small town, trees are dying on a 30-acre farm that adjoins a labyrinth of small underground pipelines used to transport fuel from the fracking wells to outside markets. Horses have also fallen ill. Residents report problems with frequent nausea, severe headaches, breathing difficulties, chronic eye irritation, allergies, throat irritations and even brain disorders.
When Texas state inspectors, who are usually linked to the drilling companies, reported they could not find any problem with the wells, Dish town officials hired an environmental firm to collect one-day air samples near the compressors. Their study found high levels of 15 chemicals, including benzene, a known carcinogen. As a result the Texas Commission on Environmental Quality conducted air studies at 94 sites in the region. They found two sites with very high levels of benzene and 19 others with levels that raised concern.
In April, blood and urine testing of 28 adult Dish residents revealed that half the residents had slightly elevated levels of benzene and other contaminants. Four residents tested positive for benzene, including Tillman. Tillman noted that no testing was done on children, pregnant women or the elderly — groups likely to be most susceptible to the contaminants. Tillman’s water also tested positive for traces of styrene, ethyl benzene and xylene.
Growing concern over the danger of fracking has led to a push for legislation in Pennsylvania that would require drillers to disclose chemical ingredients in hydraulic fracturing fluids. Other proposed legislation calls for a moratorium on drilling until environmental impact studies can be performed. Both bills have yet to be passed and face mounting opposition from the natural gas industry.
Nationally, the oil and gas industry won exemption from major provisions of the Safe Drinking Water Act, the Clean Water Act and other federal environmental laws with the passage of the 2005 Energy Bill. The bill’s “Halliburton loophole” protected the company from having to reveal the composition of their fracturing fluid, despite the fact that the list of hazardous substances compiled by the Environmental Protection Agency’s Superfund — the program established to address abandoned hazardous waste sites — includes toxic profiles on benzene, styrene, toluene and other agents known to be in the mix. Efforts are also underway to challenge this legislation.
The EPA announced it will spend $4.4 million to start a study on the impact of fracturing in October, but Dr. Michel Boufadel, director of the Environmental Hydrology and Hydraulics Laboratory at Temple University College of Engineering, expressed concerns that the EPA’s study does not go far enough.
Speaking at the April 16 meeting, Boufadel noted that very few scientific studies on fracking have been conducted by researchers not connected to the drilling industry. He also pointed out that most studies assume that any leak of water contaminated by fracturing fluids would spread horizontally from a holding tank and be detected by ground level monitors.
Boufadel explained that the 250 chemicals contained in the fracturing fluid create “gooey, high density water” — a gel that suspends the sand particles needed to work into cracks in the shale layers. The result is “radioactive water six times more saline than sea water and containing known carcinogens.”
“If you don’t account for this heavy density you would expect water to move outward, but the reality is that it moves down,” Boufadel stressed. “If you only use existing traditional models of monitoring wells at ground level, you won’t detect contamination until it’s too late.”
http://www.workers.org/2010/us/fracking_0513/
The company was also ordered to plug three gas wells it was operating in the town, which sits atop the Marcellus Shale formation, and was banned from drilling in the area. One water well in Dimock exploded last year, and DEP inspectors witnessed gas bubbling up at the base of eight other wells in March. Despite the ruling, Cabot has plans to drill 100 new wells in Dimock this year.
Independent newsroom ProPublica has reported on 50 similar cases across Pennsylvania, including reports of fish kills, water and air pollution, fires, out-of-control flaring, human illnesses and animal deaths.
The concern over the safety of hydraulic fracturing has prompted calls for a moratorium on drilling in Pennsylvania. In the process, often referred to as fracking, 2 to 9 millions of gallons of water, mixed with sand and up to 250 chemicals, are pushed into underground shale layers to release natural gas.
In January the Pennsylvania state Legislature opened up 32,000 additional acres of state forest land to be leased for drilling. As a result, 692,000 acres of the 2.1 million acres of state forest land are now open for gas wells. During a recent push to expand the practice into the Delaware River basin, the Philadelphia City Council was pressured to pass a resolution on March 25 calling for an environmental impact statement before any new permits are issued.
Fracking has been in use for a number of years throughout the U.S., particularly in the Southwest. Five natural gas sites border the town of Dish, Texas, in a quarter-mile complex. In nearby Fort Worth, Texas, 1,400 wells have been drilled in urban areas, many near schools and residential centers.
Speaking at a meeting at Temple University’s Department of Civil and Environmental Engineering on April 16, Dish Mayor Calvin Tillman described how carcinogenic air pollution from natural gas drilling has damaged the quality of life in his town of 180 residents. The town sits atop the Barnett Shale, a geological formation similar to the Marcellus Shale.
Using his own money, Tillman has been traveling to Pennsylvania and New York to warn about the dangers of the gas boom. In his small town, trees are dying on a 30-acre farm that adjoins a labyrinth of small underground pipelines used to transport fuel from the fracking wells to outside markets. Horses have also fallen ill. Residents report problems with frequent nausea, severe headaches, breathing difficulties, chronic eye irritation, allergies, throat irritations and even brain disorders.
When Texas state inspectors, who are usually linked to the drilling companies, reported they could not find any problem with the wells, Dish town officials hired an environmental firm to collect one-day air samples near the compressors. Their study found high levels of 15 chemicals, including benzene, a known carcinogen. As a result the Texas Commission on Environmental Quality conducted air studies at 94 sites in the region. They found two sites with very high levels of benzene and 19 others with levels that raised concern.
In April, blood and urine testing of 28 adult Dish residents revealed that half the residents had slightly elevated levels of benzene and other contaminants. Four residents tested positive for benzene, including Tillman. Tillman noted that no testing was done on children, pregnant women or the elderly — groups likely to be most susceptible to the contaminants. Tillman’s water also tested positive for traces of styrene, ethyl benzene and xylene.
Growing concern over the danger of fracking has led to a push for legislation in Pennsylvania that would require drillers to disclose chemical ingredients in hydraulic fracturing fluids. Other proposed legislation calls for a moratorium on drilling until environmental impact studies can be performed. Both bills have yet to be passed and face mounting opposition from the natural gas industry.
Nationally, the oil and gas industry won exemption from major provisions of the Safe Drinking Water Act, the Clean Water Act and other federal environmental laws with the passage of the 2005 Energy Bill. The bill’s “Halliburton loophole” protected the company from having to reveal the composition of their fracturing fluid, despite the fact that the list of hazardous substances compiled by the Environmental Protection Agency’s Superfund — the program established to address abandoned hazardous waste sites — includes toxic profiles on benzene, styrene, toluene and other agents known to be in the mix. Efforts are also underway to challenge this legislation.
The EPA announced it will spend $4.4 million to start a study on the impact of fracturing in October, but Dr. Michel Boufadel, director of the Environmental Hydrology and Hydraulics Laboratory at Temple University College of Engineering, expressed concerns that the EPA’s study does not go far enough.
Speaking at the April 16 meeting, Boufadel noted that very few scientific studies on fracking have been conducted by researchers not connected to the drilling industry. He also pointed out that most studies assume that any leak of water contaminated by fracturing fluids would spread horizontally from a holding tank and be detected by ground level monitors.
Boufadel explained that the 250 chemicals contained in the fracturing fluid create “gooey, high density water” — a gel that suspends the sand particles needed to work into cracks in the shale layers. The result is “radioactive water six times more saline than sea water and containing known carcinogens.”
“If you don’t account for this heavy density you would expect water to move outward, but the reality is that it moves down,” Boufadel stressed. “If you only use existing traditional models of monitoring wells at ground level, you won’t detect contamination until it’s too late.”
http://www.workers.org/2010/us/fracking_0513/
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