Sentences with phrase «wastewater disposal»

The current regulatory framework for wastewater disposal wells was designed to protect drinking water sources from contamination and does not address earthquake safety.

«This research opens new possibilities for the operation of wastewater disposal wells in ways that could reduce earthquake hazards,» Shirzaei said, in the release.

Other recent developments include a crackdown on oil and gas wastewater disposal in Oklahoma, intensified scrutiny of methane emissions from oil and gas operations on public and tribal lands, and a rare $ 4.24 million jury verdict for in a water pollution case in Pennsylvania.

Earthquakes from wastewater disposal may be triggered at tens of kilometers from the wellbore, which is a greater range than previously thought, according to research to be presented today at the annual meeting of the Seismological Society of America (SSA).

A lifelong advocate for our coast, Williams championed required testing of groundwater before, during, and after hydraulic fracturing, which was included in California's regulations on fracking, and authored legislation to expand groundwater monitoring to other types of injection wells to protect underground sources of drinking water from oil and gas wastewater disposal.

«Seismologists have documented the relationship between wastewater disposal and triggered seismic activity.

Experts have not yet tied the quake to oil and gas production, but the epicenter is near wastewater disposal wells, structures that have been implicated in earlier quakes in the state.

To conduct the study, they collected stream sediments from three wastewater disposal sites in western Pennsylvania, as well as three upstream sites, and analyzed the radioactive elements in the sediments.

«Fracking — not wastewater disposal — linked to most induced earthquakes in Western Canada.»

Now, researchers from the University of Missouri (MU) report high levels of EDC activity in the surface water near a hydraulic fracturing wastewater disposal facility in West Virginia.

However, some intraplate faults have experienced increased seismicity in recent years, likely due to deep injection wells used for wastewater disposal.

Rather, the culprit is typically wastewater disposal, where high volumes of water extracted in oil and gas operations is reinjected into deep basement rocks, where the bigger and more dangerous faults lie.

Last August, the EPA announced that it would develop its own rules on wastewater disposal instead of leaving it up to states.

Wastewater disposal from oil and gas operations has increased in the U.S. in the past decade, especially in states like Oklahoma where the amount of wastewater disposal doubled between 1999 and 2013.

Since 2015 Oklahoma has slashed injection volumes and, in some cases, suspended wastewater disposal near seismic zones in an effort to mitigate the quakes.

«All along, we have presumed that on - site wastewater disposal systems, such as septic tanks, were working,» said Rose, Homer Nowlin Chair in water research.

It is possible that massive wastewater disposal in the U.S. is «masking another signal» of induced seismicity caused by fracking, Atkinson said.

However, some oil and gas fields in the U.S., especially Oklahoma, use «very large amounts of water» in their operations, leading to much more wastewater disposal than in Canadian operations, said Gail M. Atkinson of Western University.

The Pawnee earthquake occurred in a region with active wastewater disposal wells, and is potentially the largest such induced earthquake to have occurred in Oklahoma so far, write University of Oklahoma seismologists Xiaowei Chen and Norimitsu Nakata in their preface to the section.

The analyses identified earthquakes as being related to fracking if they took place close to a well and within a time window spanning the start of fracking to three months after its completion, and if other causes, such as wastewater disposal, were not involved.

Regulators in several states start to limit wastewater disposal to reduce risks of induced tremors.

For example, wastewater disposal appears to have induced the magnitude - 5.6 earthquake that struck rural central Oklahoma in 2011, leading to a few injuries and damage to more than a dozen homes.

In the first study of its kind, satellites show how wastewater disposal from oil and gas operations in eastern Texas may have deformed the ground to trigger the region's largest - ever quake — a magnitude 4.8 event in 2012.

«Earthquakes follow wastewater disposal patterns in southern Kansas.»

In western Colorado, for example, Antero Resources Corp. negotiated an agreement with civic leaders to use nontoxic hydraulic fracturing fluids, monitor water supplies, and avoid the use of wastewater disposal pits.

Sanders also asked about what actions Pruitt had taken to punish oil companies whose wastewater disposal activities had contributed to causing earthquakes in Oklahoma.

Of the three activities, wastewater disposal predominates both in terms of volumes of injected liquid and earthquake size, with magnitudes for a few of the earthquakes exceeding 5.

A new fracking wastewater disposal plan could see it dumped upsteam from Niagara Falls; many doubt the ability of water treament plants to remove the contamination.

Concerns about the availability of water supplies needed for gas production, and questions about wastewater disposal have been raised by water - resource agencies and citizens throughout the Marcellus Shale gas development region.

Quickly: An alternative to using water in fracking for natural gas, potentially eliminating the water use and wastewater disposal concerns, detailed over at Inside Climate News.

«Based on the data we had available, it looked like the potential for contamination was much larger from wastewater disposal than from any of the other sources,» said report co-author Dan Rozell, in an interview with the Innovation Trail.

Previous studies attempting to evaluate the threshold between wastewater disposal and earthquake activity have focused on pore pressure in the ground, which can be hard to measure directly.

Atkinson and her colleagues compared the relationship of 12,289 fracking wells and 1236 wastewater disposal wells to magnitude 3 or larger earthquakes in an area of 454,000 square kilometers near the border between Alberta and British Columbia, between 1985 and 2015.

Only a few dozen of the tens of thousands of wastewater disposal, enhanced oil recovery and hydraulic fracture wells in the U.S. have been linked to induced earthquakes that can be felt.

They govern a range of drilling activities, including water withdrawals, well pad siting and wastewater disposal.

During the discussions, Zucker displayed numerous scientific papers that he said highlighted how multiple facets of shale gas production, including drilling, trucking, and wastewater disposal, could potentially harm human health.

Researchers are also tracking induced earthquakes in Canada, and the current batch of studies suggests that fracking might be more significant than wastewater disposal for causing earthquakes in that country, according to focus section co-editor David Eaton of the University of Calgary.

Atkinson and colleagues found 39 hydraulic fracturing wells (0.3 % of the total of fracking wells studied), and 17 wastewater disposal wells (1 % of the disposal wells studied) that could be linked to earthquakes of magnitude 3 or larger.

Further studies are needed to assess the export scenario's full environmental impacts, including water use, land use, the loss or degradation of vital fish and wildlife habitats, and risks associated with extraction and wastewater disposal of U.S. shale gas deposits.

«Oil and gas wastewater disposal may harm West Virginia waterways: Scientists draw conclusions after study at natural gas, oil extraction wastewater disposal facility.»

This problem extends across the United States, where underserved rural populations do not have access to wastewater disposal.

They found that the dramatic uptick in seismicity correlated in time and location with increases in wastewater disposal that began in 2012 — and that decreases in seismicity during that time also corresponded to decreases in disposal rates.

Scientists from University of Texas at Austin took advantage of new monitoring data to explore the connection between seismicity and petroleum production near the Bakken Formation, an area of historically low seismicity, but with a recent history of increased hydraulic fracturing and wastewater disposal.

The challenges of wastewater disposal have led to an unexpected development: from being an undesirable product for immediate disposal, wastewater is increasingly considered a resource that can provide energy, nutrients, and new drinking water, explains Barth F. Smets from DTU Environment.

The wastewater disposal rehabilitates the sewage system.

Michael Brudzinski of Miami University and his colleagues will discuss their work to identify swarms of small magnitude earthquakes in Ohio that appear to be correlated in time and space with hydraulic fracturing or wastewater disposal.

Their work suggest that there are roughly three times more earthquake sequences of magnitude 2 or larger induced by hydraulic fracturing compared to wastewater disposal in the area — even though there are about 10 times more hydraulic fracturing wells than wastewater disposal wells.