Tag Archives: California

California shuts dozens of oil wells to stop wastewater injection

Repost from the San Francisco Chronicle

State shuts 33 wells injecting oil wastewater into aquifers

By David R. Baker, October 16, 2015
A person walks past pump jacks operating at the Kern River Oil Field in Bakersfield, Calif. (AP Photo/Jae C. Hong, File) Photo: Jae C. Hong, Associated Press

A person walks past pump jacks operating at the Kern River Oil Field in Bakersfield, Calif. (AP Photo/Jae C. Hong, File)

California regulators on Thursday closed 33 oil company wells that had injected wastewater into potentially drinkable aquifers protected by federal law.

The new closures bring to 56 the number of oil-field wastewater injection wells shut down by the state after officials realized they were pumping oil-tainted water into aquifers that potentially could be used for drinking or irrigation.

All but two of the latest closures are in Kern County, in California’s drought-stricken Central Valley. One lies in Ventura County, another in northern Los Angeles County. Officials with California’s Division of Oil, Gas and Geothermal Resources spent Friday verifying that they had, in fact, closed. Of the 33, only 21 had been actively injecting wastewater before Thursday.

“This is part of our ongoing effort to ensure that California’s groundwater resources are protected as oil and gas production take place,” said Steven Bohlen, the division’s supervisor.

California’s oil fields contain large amounts of salty water that comes to the surface mixed with the oil. It must be separated from the petroleum and disposed of, often by injecting it back underground. Much of the water is pumped back into the same geologic formation it came from. But enough left-over water remains that companies must find other places to put it.

Fears of contamination

The division, part of California’s Department of Conservation, for years issued oil companies permits to inject their left-over water into aquifers that were supposed to be off-limits, protected by the federal Safe Drinking Water Act.

The problem, detailed in a Chronicle investigation earlier this year, raised fears of water contamination in a state struggling through a historic, four-year drought.

So far, however, no drinking water supplies have been found to be tainted by the injections.

Still, some environmentalists expressed outrage that so few wells had been closed.

The division has identified 178 wells that were injecting into legally protected aquifers with relatively high water quality, defined as those with a maximum of 3,000 parts per million of total dissolved solids. More than 2,000 other wells inject into aquifers that would be harder to use for drinking water, either because they are too salty or because they also contain oil.

“This is too little, too late to protect our water,” said Kassie Siegel, director of the Climate Law Institute at the Center for Biological Diversity. “With each passing day the oil industry is polluting more and more of our precious water.”

The division reported Friday, however, that not all 178 wells required closure. Some had already been shut down by their operators, while others had been converted into wells for extracting oil — not dumping wastewater.

An oil industry trade group noted that all of the wells closed Thursday had received state permits, even if the state now acknowledges that those permits should never have been issued.

“Both regulators and producers are committed to protecting underground water supplies, and today’s announcement reinforces the seriousness of that commitment,” said Catherine Reheis-Boyd, president of the Western States Petroleum Association.

Safeguarding water supplies

“California’s oil and natural gas producers are committed to operating their wells in a manner that continues to safeguard public water supplies,” she said.

Revelations that the division allowed injections into relatively fresh groundwater supplies touched off a political firestorm, triggered lawsuits, and led Bohlen to launch a reorganization of his staff.

More well closures will likely follow. Under regulations adopted this year, wells injecting into aquifers with water quality between 3,000 and 10,000 total dissolved solids must cease injections by Feb. 15, 2017, unless granted an exemption from the federal Environmental Protection Agency.

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Through the lens of the forest – tree rings reveal drought history

Repost from the San Francisco Chronicle
[Editor:  See paragraph 8 for link to source material.  – RS]

How researchers measured history of California drought

By Valerie Trouet, September 22, 2015
Frank Gehrke, left, chief of the California Cooperative Snow Surveys Program for the Department of Water Resources, and Gov. Jerry Brown walk across a dry meadow that is usually covered in several inches of snow as conducts the snow survey, near Echo Summit, Calif., Wednesday, April 1, 2015. Gehrke said this was the first time since he has been conducting the survey that he found no snow at this location at this time of the year.  Brown took the occasion to annouced that he signed an executive order requiring the state water board to implement measures in cities and towns to cut water usage by 25 percent compared with 2013 levels. (AP Photo/Rich Pedroncelli) Photo: Rich Pedroncelli, Associated Press

Frank Gehrke, left, chief of the California Cooperative Snow Surveys Program for the Department of Water Resources, and Gov. Jerry Brown walk across a dry meadow that is usually covered in several inches of snow as conducts the snow survey, near Echo Summit, Calif., Wednesday, April 1, 2015. Gehrke said this was the first time since he has been conducting the survey that he found no snow at this location at this time of the year. Brown took the occasion to annouced that he signed an executive order requiring the state water board to implement measures in cities and towns to cut water usage by 25 percent compared with 2013 levels. (AP Photo/Rich Pedroncelli) Photo: Rich Pedroncelli, Associated Press

In 2005, I moved to the United States from Belgium to study the influence of climate on wildfires in the Sierra Nevada over the last five centuries. As part of this work, I traveled for three months all around the mountain range to collect samples of trees and tree stumps. I stayed in remote service barracks and spent my days tromping through meadows and hiking up steep creeks to find trees that were scorched by past fires.

Thanks to the ample snows that usually fall, the Sierra has been California’s most efficient water storage system. In normal years, the mountain range’s snowpack provides 30 percent of the state’s water. It is the primary source for reservoirs that supply drinking water, agriculture and hydroelectric power. But this year, the snowpack was at just 5 percent of its 50-year average.

When California Gov. Jerry Brown declared the first-ever mandatory statewide water restriction, he chose a Sierra Nevada snow-measurement station as his backdrop. For the first time in 75 years, that station was surrounded only by dirt.

For me, Brown’s announcement worked as a call for action. After my time in the Sierra, I had realized that my main research interest — the interaction between climate and forest ecosystems — could best be pursued amid the majestic landscapes of the American West. So in 2011, I became a professor at the University of Arizona in Tucson, where I now lead a team that uncovers the past climate of California by studying its trees. I knew my research could put this year’s 2015 snow drought in a much longer context.

While there are no written documents about the climate in California from centuries ago that anyone knows of, nature itself has been writing the story of its past in many places — caves, shells, lakes and, of course, trees. My job as a paleoclimatologist is to decipher this story. Trees are remarkable creatures: In California’s Mediterranean climate, they form a growth ring every year, and the width of that ring depends, to a large extent, on that year’s climate. After a wet winter, the ring that forms is relatively wide; after a dry winter, the ring is narrow. By measuring the widths of these rings in trees that have lived for centuries, my team can “read” what the climate was like in each year over that time span. And we can extend this outlook even further by collecting older dead wood.

The amount of snow on the ground at the end of the snowy season in the Sierra is largely determined by two climate components: how much precipitation fell during winter, and how warm or cold the winter was. Temperature determines how much of the precipitation that fell was rain versus snow, and affects the speed of snowmelt. We put two tree-ring data sets together to represent precipitation and temperature over the last 500 years.

By measuring the width of the rings of more than 1,500 blue oak trees in central California, some of the most climate-sensitive trees on the planet, we were able to reliably trace Pacific Ocean storms that have traveled east over central California and brought precipitation to the Sierra Nevada. We complemented this data with a 500-year-long winter temperature record derived from tree-ring data from a variety of trees throughout the American West, which was provided by the National Oceanic and Atmospheric Administration.

By comparing these two data sets with Sierra Nevada snowpack records dating to the 1930s, we were able to reconstruct the history of snowpack in the region all the way back to the year 1500. The results, which we published last week, made national headlines: The mountain range’s 2015 snowpack level is the lowest it has been in 500 years.

To put that in perspective, this means this winter has been the worst since the first European explorer, Juan Rodriguez Cabrillo, explored California in the 1540s —about 150 years before the first mission was established. When my team started our work, we thought this year’s snow drought would be extreme, but we did not expect it to be the absolute lowest.

Sadly, while this research sheds light on the past, it’s actually not a very good barometer for the future. It very likely will not take another 500 years to reach the next record snowpack low. California temperatures are only projected to rise over the coming century. Even if the projected strong El Niño in the Pacific dumps loads of rain on Southern California this year, chances are that the Sierra Nevada snowpack will be a less reliable water source for the state going forward. This means fish and wildlife will suffer and, of course, California’s growing population of farmers, gardeners, skiers and residents are only going to keep wanting more, much more.

As I write this, the summer monsoon is rolling in over Tucson, and I am reminded that it brings a chance of redemption after a dry winter in Arizona. But California doesn’t have monsoons. Instead, in the last few days, my Twitter feed has been filled with pictures and stories of the Butte and Rough fires that are raging through the region. To me, they demonstrate the well-studied link between low snowpack, earlier spring snowmelt, and the increased risk of wildfire.

Now the ancient giant sequoia trees that left me in awe when I first saw them are at risk of being felled by drought, and even under the immediate threat of the Rough fire. To a tree-ring scientist, these 3,000-year-old trees are the enigmatic face of the power and resilience of nature. They have doubtless survived many threats and disturbances that we are not even aware of. To walk among these giants for the first time was a dream come true. Little did I realize then that I’d be keeping my fingers crossed for their survival less than a decade later.

Valerie Trouet is an associate professor in the Laboratory of Tree-Ring Research at the University of Arizona. She wrote this for Zocalo Public Square.
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Half Million California Students Attend School In Oil Train Blast Evacuation Zones

Repost from DeSmogBlog
[Editor:  See the more detailed interactive map of schools by the Center for Biological Diversity.  Note Benicia’s Robert Semple Elementary School on the Center’s map, located just 0.88 miles from a Union Pacific train route which currently carries hazardous materials and is proposed for Valero Refinery’s Crude By Rail project.  Here’s a map of Robert Semple school and the tracks.  – RS] 

Half a Million California Students Attend School In Oil Train Blast Evacuation Zones

By Justin Mikulka, September 7, 2015 – 04:58

A new analysis by the Center for Biological Diversity finds that 500,000 students in California attend schools within a half-mile of rail tracks used by oil trains, and more than another 500,000 are within a mile of the tracks.

“Railroad disasters shouldn’t be one of the ‘three Rs’ on the minds of California school kids and their parents,” said Valerie Love with the Center. “Oil trains have jumped the tracks and exploded in communities across the country. These dangerous bomb trains don’t belong anywhere near California’s schools or our children.”

Click for larger image

Current safety regulations for first responders dealing with oil trains recommend evacuating everyone within a half-mile of any incident with an oil train. This wasn’t much of a problem for the most recent oil train accident in July in Culbertson, Montana because there were only 30 people within the half-mile radius area. However, in populated areas like California, potential scenarios could involve large-scale evacuations and casualties.

In addition to the threat posed to California’s students, the report Crude Injustice on the Rails released earlier this year by ForestEthics and Communities for a Better Environment, pointed out that in California the communities within the half-mile blast zones were also more likely to be low-income minority neighborhoods.

As more communities across the country become aware of the very real risks these oil trains pose, opposition is mounting to new oil-by-rail projects as well as challenges to existing facilities.

This past week in California, the Santa Clara County board of supervisors voted to keep oil trains out, citing an “unacceptable risk to our community.”

In Minnesota, Sen. Al Franken (D-MN) held a hearing on the subject and heard from concerned residents like Catherine Dorr, as reported by the local CBS station.

We’re in the 100 foot blast zone,” Dorr said. “My house and 60 townhouse residents are going to be toast if there’s an explosion.”

In Albany, New York which is the largest oil-by-rail hub on the East coast, this week a coalition of groups announced their intentions to sue the oil company transporting Bakken crude through Albany and challenge the validity of the air quality permit the company received in 2012.

And even in remote places like North Dakota, where much of the oil originates, the U.S. military is concerned about the proximity of the oil train tracks to nuclear missile facilities.

With all of this concern about the dangers of oil trains, a new report by the Associated Press (AP) paints a troubling picture about the preparedness of populated areas to respond to an oil-by-rail incident. The report was based on interviews with emergency management professionals in 12 large cities across the U.S.

It concludes, “The responses show emergency planning remains a work in progress even as crude has become one of the nation’s most common hazardous materials transported by rail.”

As noted on DeSmog, one of the reasons that the oil trains pose such a high risk is that the oil industry refuses to stabilize the oil to make it safe to transport. And the new regulations for oil-by-rail transport released this year allow for older unsafe tank cars to be used for another 8-10 years.

While the regulations require modernized braking systems on oil trains in future years, the rail industry is fighting this and a Senate committee recently voted to remove this from the regulations.

The reality is that unless there are drastic changes made, anyone living within a half mile of these tracks will be at risk for years to come.

And while oil production isn’t increasing in the U.S. right now due to the low price of oil, industry efforts to lift the current ban on exporting crude oil could result in a huge increase in fracked oil production. In turn, that oil will be put on trains that will head to coastal facilities and be loaded on tankers and sent to Asia.

Despite all of the opposition and the years-long process to complete new regulations, as the Associated Press notes, it isn’t like the emergency first responders are comfortable with the current situation.

“There could be a huge loss of life if we have a derailment, spill and fire next to a heavily populated area or event,” said Wayne Senter, executive director of the Washington state association of fire chiefs. “That’s what keeps us up at night.”

And even the federal regulators expect there are going to be catastrophic accidents. As reported by the AP earlier this year, the Department of Transportation expects oil and ethanol trains “will derail an average of 10 times a year over the next two decades, causing more than $4 billion in damage and possibly killing hundreds of people if an accident happens in a densely populated part of the U.S.”

With the known risks and the number of accidents, so far communities in the U.S have avoided disaster. But as Senator Franken pointed out, that has just been a matter of luck.

We’ve been lucky here in Minnesota and North Dakota and Wisconsin that we’ve not seen that kind of fatalities, but we don’t want this to be all about luck,” Sen. Franken said.

As over 1,000,000 students in California start a new school year in schools where they can easily hear the train whistles from the oil trains passing through their communities, let’s all hope we keep this lucky streak going.

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