wastewater injection

Is Historical Oil Drilling Responsible For L.A.'s Reputation As Earthquake Prone?

A study by scientists with the U.S. Geological Survey points to oil drilling operations as the likely culprit in some of the biggest earthquakes that hit Southern California in the early 20th century — which led to questions about whether or not the Los Angeles region is really as earthquake prone as it is known for.

A number of recent studies have found that earthquakes in Oklahoma and Texas were likely induced by oil production or underground injection of oilfield wastewater. For instance, USGS researchers found that wastewater disposal most likely induced the third-largest earthquake in recent Oklahoma history, the 5.1-magnitude quake that occurred on February 13 of this year.

Previous research has found no evidence that oil operations have led to induced seismic events in Southern California, particularly the greater Los Angeles region, where many of the state’s major oilfields lie, since 1935. But what about before that?

Oil Industry Wastewater Injection Has Overpressurized Aquifers For Decades, Threatening California Drinking Water

A new report from the Washington, D.C-based Environmental Action Center (EAC) on California’s underground injection program finds that oil industry wells in the state have been overpressurizing some aquifers for decades, risking the contamination of neighboring aquifers that might contain drinkable water. Despite full awareness of the problem, state regulators have done little to stop them.

California Regulators Sued Over Plan To Turn Aquifer Into Permanent Oil Waste Dump

California regulators are facing a lawsuit over their plans to turn an underground aquifer in the Price Canyon area of San Luis Obispo County into a permanent disposal site for oilfield wastewater and other potentially dangerous fluids.

In August 2015, oil giant Freeport-McMoRan submitted an application to California’s Division of Oil, Gas and Geothermal Resources (DOGGR) for state approval of its plan to exempt an aquifer in the Arroyo Grande Oil Field from federal protections so that the company could move forward with plans to drill hundreds of new wells in the area.

In turn, this past February, DOGGR officially submitted an application to the U.S. Environmental Protection Agency to have the aquifer exempted from protections under the federal Safe Drinking Water Act.

Oil and Gas Activities Behind Texas Earthquakes Since 1925, Scientists Conclude

If you've felt an earthquake in Texas at any point over the last four decades, odds are that quake wasn't naturally occurring, but was caused by oil and gas industry activities, according to a newly published scientific report.

Just 13 percent of Texas earthquakes larger than magnitude 3 since 1975 were the result of natural causes alone, according to scientists from the University of Texas who published their peer-reviewed paper in the journal Seismological Research Letters.

In recent years, fracking wastewater injection wells have become the primary cause of tremblors in the state, the report adds.

California Regulators Are Approving Fracking Wastewater Disposal Permits Near Fault Lines

New research indicates that nearly 40 percent of new wastewater injection wells approved over the past year in California are perilously close to fault lines, increasing the risk of man-made earthquakes in the already seismically active Golden State.

The Center for Biological Diversity (CBD) found that 13 out of 33, or 39 percent, of new drill permits for wastewater disposal wells issued by regulators with California’s Division of Oil, Gas, and Geothermal Resources (DOGGR) between April 2015 and March 2016 were for drill sites within 5 miles of a fault.

The CBD also found that 26 of the 33 rework permits for wastewater disposal wells granted by DOGGR over that same period were for wells within 5 miles of a fault. Rework permits are required when a company wants to re-drill a well or alter a well casing.

Thousands Of California Injection Wells Might Be Polluting L.A. Drinking Water, But State Won’t Release Results Of Investigation

Los Angeles

California oil and gas regulators still embroiled in controversy over their “corrupt, inept, and woefully mismanaged” underground injection control program — which permitted thousands of oilfield wastewater disposal wells to operate in protected groundwater aquifers — are refusing to release the results of a report on thousands more injection wells that could be polluting L.A.’s drinking water supply.

New Research Confirms Earthquake Swarms Caused by Oil and Gas Industry

The evidence establishing that the oil and gas industry is causing earthquakes grew much stronger last week, as two scientific papers clarified exactly how human activity is driving the swarm of quakes that has afflicted Oklahoma for the past six years.

For decades, earthquakes were rare in the central US. Since the 1970’s, two dozen quakes over magnitude 3.0 shook the region in an average year and larger quakes were even more rare.

But since 2009, right when the drilling industry’s wastewater production started spiking, the number of earthquakes has been skyrocketing, with 688 quakes that size hitting the region in 2014 — and 2015 is on track to be even more seismically active.

This means, Oklahoma has been hit by more quakes in the past year and a half than were felt in the entire 36 year-span from 1973 through 2008.

California Regulators Miss First Reporting Deadline For Oil Industry Water Use

California is facing such a severe drought and water crisis that Governor Jerry Brown issued the first mandatory water restrictions in state history last month. But it appears that the state’s oil and gas regulators did not get the memo about just how urgent the situation is.

The Division of Oil, Gas and Geothermal Resources (DOGGR), the oil and gas regulatory agency within the California Department of Conservation, reported last week that it had missed the April 30 deadline for making public the critical information about water usage by oil and gas production, claiming it was simply too much data to process.

Environmentalists Are Taking California To Court Over Illegal Oil Industry Wastewater Injection

Environmentalists filed a motion requesting a preliminary injunction today in a California court to immediately stop the daily illegal injection of millions of gallons of oil field wastewater into protected groundwater aquifers in the state.

Last week, Earthjustice filed a lawsuit on behalf of the Sierra Club and the Center for Biological Diversity in Alameda County Superior Court that challenges California regulators’ emergency rules meant to rein in the state’s disastrous Underground Injection Control (UIC) program.

USGS: Fracking Wastewater Disposal Wells Are Causing Oklahoma Earthquakes

Some of the most heavily fracked parts of the US have experienced an unprecedented wave of earthquakes in recent years even though they’ve long been considered geologically stable. But the oil and gas industry is quick to reject any suggestion that fracking is to blame.

The United States Geological Survey, for its part, has said in the past that the injection of fracking wastewater into deep geologic formations was a likely cause of the increased seismic activity in Oklahoma.

Now the agency has made it official.

“Deep injection of wastewater is the primary cause of the dramatic rise in detected earthquakes and the corresponding increase in seismic hazard in the central U.S.,” the USGS said in a press release.

Several scientists and seismologists with the USGS, the University of Colorado at Boulder, the Oklahoma Geological Survey, and the Lawrence Berkeley National Laboratory have published a paper in the journal Science that calls for greater transparency from the oil and gas industry, as well as collaboration between industry, government, and the public, in order to mitigate the impacts of these “human-induced earthquakes.”

There were more earthquakes of magnitude 3 or higher in Oklahoma last year than in California. Several were of a magnitude greater than 5 and caused considerable damage.

The problem has become so prevalent that Oklahomans have started seeking earthquake insurance, which insurers used to dismiss with a laugh. But even as seismic activity increased since the rise of fracking in 2008, the industry and Oklahoma regulators took no meaningful action to protect residents, which is no surprise given how integral the oil and gas industry is to Oklahoma’s economy.

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