John Sullivan of the Boston Water and Sewer Commission testified that since September 11 the nation's drinking water utilities have been on a heightened state of alert to protect against the potential disruption of water service and biological or chemical contamination of drinking water.
And each frack job requires the injection of millions of gallons of chemical-laced water.
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The chemical spray poisons water sources and damages human health, according to people in Puerto Asis.
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Fracking is a drilling process that frees gas from deep rock deposits by injecting wells with chemical-laced water at high pressure.
In addition to a sea floor mapping project, the researchers will make chemical analyses of water samples that will help them determine the temperature, salinity and composition of a strong circumpolar current that flows around the boundary of the Arctic Ocean.
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The bans stem from local residents' concerns about potential adverse impacts if the state lifts its 5-year-old moratorium on gas drilling using high-volume hydraulic fracturing, or fracking, which frees gas from deep shale deposits by injecting wells with chemical-laced water at high pressure.
This part of Texas is in the core of the Eagle Ford s hale, currently the most profitable oil and gas field in the U.S. The people around here understand that the fracking of this shale, the injection of billions of gallons of sand-and-chemical-laden water, takes place 2 miles beneath the ground.
Well a porous coalbed is very similar in chemical makeup to those water filters.
His team seized control of the equipment that added chemical treatments to drinking water in one day.
And suppose that later this year the entire chemical sector is under water.
For example, as part of the process, scientists grow the marine organisms under varying temperatures, and link changes in their shells' chemical signature to different water temperatures.
Many farmers using these seeds have even been able to implement a "no-till" system, which offers tremendous environmental benefits by preventing soil erosion, keeping farm water and chemical run-off out of local watersheds and releasing less carbon dioxide into the atmosphere.
The City of Lincoln Council said a chemical-clean of the water system was taking longer than expected.
Environmentalists still continue to demand full chemical disclosure to ensure drinking water in fracking areas remains safe for consumption.
Runoff of nitrates and nitrites from fields sprayed with chemical fertilizers get into drinking water and cause cancer. can lead to cancer.
Residents near where pigs were being pulled from the river went days in January without tap water when a chemical transporter leaked benzene into a Huangpu River tributary.
Residents near where pigs are being pulled from the river went days in January without tap water when a chemical transporter leaked benzene into a Huangpu River tributary.
The Global Chemistry Experiment (Water: A Chemical Solution), a cornerstone event of the International Year of Chemistry 2011, is now one of the largest chemistry educational experiments done.
The city council said on Saturday that a chemical-clean of the water system was taking longer than the expected 36 hours, and that bottled drinking water and alternative bathing facilities were being provided.
Where lots of water, aggressive washing and sandpaper was once the norm for creating that worn vintage look, lasers and and ozone gas cameras are now being used to minimize water waste and chemical runoff.
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The chemical, used to treat cloudy water, went straight into the main water supply.
The chemical won't leach into water or climb back up the food chain to affect other species.
In the substance he eventually lit on, this happens because at room temperature there are chemical bonds between polymer molecules and water molecules.
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The degree of stripping depended on a range of factors, including the volatility of the chemical, the temperature of the water and the surface area available for transfer.
Oxygen, water's other chemical constituent, is common in rocks.
More than 10 drillers have already received Department of Environmental Protection permission to use mine discharges for fracking, a technique in which millions of gallons of water, along with chemical additives and sand, are pumped down a well to break apart gas-bearing shale deposits.
China also missed its target for chemical oxygen demand, a measure of water pollution.
They shed all the heavy stuff and carry with them the things they need: ammunition, communications, water, food, and chemical gear.
There are widespread concerns around the use and disposal of fracking fluids, which are proprietary mixtures of water, sand, and chemical lubricants.
The robot is powered by heat-producing chemical reactions between the oxygen and hydrogen in water and the platinum on its surface.
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