Thursday, July 16, 2015

Politicians Defend Taylor Energy While Their Gulf Oil Leak Continues

Predictably, some Louisiana lawmakers (is that really a good way to describe these folks?) are rushing to defend the now-defunct Taylor Energy company which, according to ex-Senator Mary Landrieu, should be "commended for its diligent, collaborative, and environmentally responsible work on this matter." 

"This matter" is a chronic leak that's been pouring crude oil continuously into the Gulf for almost 11 years, and shows no signs of tapering off.  Taylor Energy has declared -- apparently with no explanation or corroboration by independent experts -- there is nothing they can do, that wouldn't cause worse harm to the environment.  Federal officials estimate the leak will continue for another 100 years, until the reservoir is tapped out.  

Here's a satellite image of the Taylor site just a few miles off the coast of the Mississippi Delta, showing a 21-mile-long slick extending northeast from the location of the buried, leaking wells.   It was shot from NASA's EO-1 satellite on July 3, using the Advanced Land Imager (ALI) instrument.  It has some remarkable detail: a thin sheen, slightly darker than the adjacent Gulf waters, surrounding a thin pale-blue streak that indicates oil thick enough to have the distinct reflectance signature characteristic of crude oil.  We estimate the sheen is, on average, 1 micron (one millionth of a meter) thick.  The pale-blue core is much thicker, perhaps millimeters thick.  This is consistent with direct observations and sampling of the Taylor slick conducted by researchers from Florida State University last summer.  

Detail from July 3, 2015 ALI satellite image of Taylor Energy site showing 21-mile-long slick trailing off to the northeast. Note the line of small, scattered cumulus clouds and their matching shadows that seems to follow the slick (water particles forming around aerosols caused by evaporating hydrocarbons?).  

Same as above, with our analysis of the slick extent (yellow overlay).  Slick covers 30.7 square kilometers. 
Using our conservative rule of thumb -- that a slick observable on satellite imagery is, on average, at least one micron thick -- we calculate the 21-mile-long Taylor slick on July 3 represents at least 8,100 gallons of crude oil.  And what did Taylor Energy report to the Coast Guard that same day? A slick 12 miles long containing 71 gallons.

Commendable indeed.

MODIS satellite image taken the same day (July 3, 2015).  Sunglint patterns and various types of clouds make for a visually complicated image, but theTaylor slick appears as a pale line the same size, shape and orientation as in the more detailed ALI imagery above.  Red dots indicate locations of oil spill reports submitted to the National Response Center (NRC) over the previous few weeks. The loose cluster of reports about 20 miles northeast of the Taylor Energy leak site suggests that those observers are sighting the far end of the Taylor slick. 

Friday, June 5, 2015

Word Games Continue: Just What Evidence Did EPA Not Find?

Yesterday, the U.S. Environmental Protection Agency (EPA) published a series of draft reports on their findings from five years of research and literature review on the question of whether or not fracking contaminates groundwater. But if you just read the headlines you might have been confused about 
what the EPA had actually concluded. As Forbes pointed out, the headlines were a bit contradictory. 

But the bigger news is that even EPA was inconsistent about the findings of their own report. The press release from EPA states that their assessment (emphasis added): 

"...shows hydraulic fracturing activities have not led to widespread, systemic impacts to drinking water resources and identifies important vulnerabilities to drinking water resources."

However, the Executive Summary of the report puts things differently (emphasis added):

We did not find evidence that these mechanisms have led to widespread, systemic impacts on drinking water resources in the United States. 

These two statements may look similar, but there is a big difference between saying that you did not find find any evidence of a crime and definitely claiming that you have proven the suspect's innocence. But try telling the House Natural Resources Committee that fracking has never been proven NOT to cause contamination, and members of Congress will laugh aloud and joke about pigs not flying to Mars. Seriously (check out 1:12:10).

But buried on page 22 of the 28-page executive summary, the EPA goes on to say (again, emphasis added):
This assessment used available data and literature to examine the potential impacts of hydraulic fracturing from oil and gas on drinking water resources nationally. As part of this effort, we identified data limitations and uncertainties associated with current information on hydraulic fracturing and its potential to affect drinking water resources. In particular, data limitations preclude a determination of the frequency of impacts with any certainty.
So in short, the EPA didn't find proof of wide-spread contamination from fracking, but they lack the data to say with any certainly whether that means anything at all. At least they acknowledged that they found "specific instances where one or more mechanisms led to impacts on drinking water resources, including contamination of drinking water wells." Which is actually big news coming from an agency which had previously stopped short of such a conclusion. 

Unfortunately, this contradiction between headlines from the EPA PR office and the finely-nuanced findings of the EPA scientists just underscores a point we made by in 2013. Word games are still misleading the American public about frackingand "...[w]hile cases of contamination caused by fracking remain obscured by lack of information and tricky linguistics, we know that a growing number of citizens are reporting harm and environmental contamination in unconventional oil and gas fields, and especially from wells that have been fracked."

Thursday, June 4, 2015

Bigfoot Suffers Damaged Tendons...

No, not the hairy cryptid with large feet and reclusive temperament, but rather Chevron's massive extended tension-leg platform (TLP) in the Gulf of Mexico which was expected to go into production later this year and produce up to 75,000 barrels of oil per day. The massive project hit a setback late last month when 6 of the 16 "tendons" designed to anchor the platform to the sea floor sank in approximately 5,200 feet of water. The Bigfoot platform is reportedly being towed to more secure waters while this incident is investigated. 

We took a look at satellite AIS and does appear the rig has returned slightly shallower water. Not exactly sure why they took such a long trip down south around May 11, but we do know they have been contending with a strong Gulf Loop Current this year, which also delayed operations.                                    AIS data copyright – exactEarth/ShipView.

The reports also state that the Bigfoot platform was not connected to any wells and no fluids were released, which sounds plausible given our understanding of the process of installing a TLP. But how exactly does an TLP work? Well according to
While a buoyant hull supports the platform's topsides, an intricate mooring system keeps the TLP in place. The buoyancy of the facility's hull offsets the weight of the platform, requiring clusters of tight tendons, or tension legs, to secure the structure to the foundation on the seabed. The foundation is then kept stationary by piles driven into the seabed. The tension leg mooring system allows for horizontal movement with wave disturbances, but does not permit vertical, or bobbing, movement, which makes TLPs a popular choice for stability, such as in the hurricane-prone Gulf of Mexico. 
If that is a little too technical, check out this promo video from a company that does these installations. In particular, fast-forward to 3:48 and you can see how the tendons have "tendon support buoys" to keep them afloat until they are attached to the structure and the platform is cranked down into the water to hold it in place.

The fact that something went wrong with the flotation of multiple tendons before the platform was even put into production is a reminder that things can always go wrong, and when it comes to deepwater oil drilling, the stakes are very, very high. Chevron has admitted that this setback will make it impossible to reach their goal of starting production by the end of 2015. 

Meanwhile, Shell's Polar Pioneer remains in Seattle, Washington, gearing up for a summer attempt at drilling in the Arctic despite the protests of 'kayaktavists' blockading the massive offshore rig. We would like to think that industry would have to prove they can drill for oil without incident in the relatively placid waters of the Gulf of Mexico before they forge ahead into new territory like the Atlantic Outer Continental Shelf and the harsh but pristine waters of the Arctic Ocean, but in the absence of such policies SkyTruth will just have to continue keeping a close eye on the Gulf, Arctic, Eastern Seaboard, and all the other places being considered or opened up for offshore exploration and production.

Thursday, May 28, 2015

Oily globs close SoCal beaches – Where did they come from?

Yesterday afternoon oily globs from an unknown source began washing ashore in Southern California, prompting officials to close Manhattan Beach, Hermosa Beach, and Redondo Beach. Reports say "tar-like globs ranging from the size of golf balls to footballs began washing ashore along a six-mile stretch of coastline." The U.S. Coast Guard has yet to identify a source, but did confirm the material was a petroleum-based product. Last week a pipeline spill of over 100,000 gallons of crude oil west of Santa Barbara dominated the headlines, so there has been some speculation that this oil came from that spill. However, thanks to satellite imagery, we believe we have found a more likely source. 

This image was collected at 6:52 am PDT on May 26 by Sentinel 1A, a radar satellite operated by the European Space Agency. Lifeguards at Manhattan Beach first reported the "tar-balls" washing ashore around 12:30 pm PDT, approximately 30 hours later. The image appears to show an oily slick only six miles west of Manhattan Beach and covering approximately 1,000 acres of Santa Monica Bay.    

Sometimes we see bilge dumps from passing vessels (like this 90-mile spill off the coast of Angola), but this slick doesn't appear to have any vessel associated with it and it isn't the right shape. So we started looking for any infrastructure around Santa Monica that could be the source of this pollution event. That is when we found this map of the five-mile sewage outfall from the Hyperion Wastewater Treatment plant at Playa del Ray. Take a look at what the outfall pipe looks like on the bathymetry layer in Google Earth. 

To see if this pipe might have anything to do with our suspected oil slick we digitized the outline of the Hyperion 5-Mile Outfall and brought that into QGIS to lay on top of the imagery from Sentinel 1A.

The southern diffuser leg of the Hyperion 5-Mile Outfall is less than 900 meters from the northern edge of the suspected oil slick.

Given how close the slick is to the Hyperion 5-Mile Outfall, we believe this could be a source for the contaminants washing up on Manhattan, Hermosa, and Redondo Beaches. It is not impossible that tarballs from the pipeline spill at Refugio Beach State Park travelled over 100 miles to wash up en mass on these beaches, but it seems less likely than a discharge of some kind from the Hyperion Wastewater Treatment plant. 

Furthermore, we found more evidence which supports the notion that waste from the outfalls could reach shore given the right conditions. Back in 2006 the City of Los Angeles shut down Hyperion's 5-mile outfall for inspection, diverting the wastewater to the shorter 1-mile outfall. Scientists at the Southern California Coastal Ocean Observing System (SCCOOS) tracked the waste from the shorter outflow pipe and modeled the behavior of the plume. Bear in mind that the animation below shows the behavior of a pollution plume back in Winter 2006 from a point-source four miles closer to shore, but you can see how it is possible that waste from the outfalls could turn toward shore and contaminate the beaches.

See more about the Hyperion outfalls at the SCCOOS website, and let us know if you have any additional information about this pollution event or the Hyperion Wastewater Treatment Plant.

Tuesday, May 12, 2015

SkyTruth Lately

Wondering what SkyTruth has been up to lately?  Here's a quick rundown:

Pearl Award

Pollution - Oil and Gas - Fracking
  • MSNBC interviewed us for a story on the chronic Taylor Energy oil leak in the Gulf.
  • Associated Press interviewed us for an in-depth story and video featuring our work monitoring and documenting chronic oil pollution in the Gulf of Mexico associated with offshore oil and gas development; covered in major media outlets including Seattle Times, Houston Chronicle, Washington Post. Followup action resulted almost immediately as Senator Nelson demands more information from federal agencies.
  • North Dakota regulators are finally cracking down on excessive, wasteful flaring of natural gas from oil wells. We've worked to provide daylight on this issue in a variety of ways, including our global flaring map and dataset.
  • Our testimony, meetings with regulators, and public critiques regarding the public disclosure of chemicals used in fracking are having a positive effect, as some significant improvements were recently announced.
Coal - Mountaintop Removal

Fishing - Ocean Monitoring
  • We detected a vessel fishing illegally in Palau's waters and provided real-time, hot-pursuit support that helped Palau intercept the culprits in the nick of time, far out at sea. NPR covered the story.
  • Yale360 wrote about our work on the Global Fishing Watch project with Oceana and Google, analyzing big data to map fishing activity throughout the ocean and illustrate how well - or poorly - marine protected areas are being managed.
  • Fast Company profiled our work, highlighting the "watchdog" role that satellite image monitoring can play in encouraging better performance by government and industry.
  • This article in the Pittsburgh Post-Gazette describes our FrackFinder program of crowdsourcing to engage citizen-scientists in analyzing imagery and producing useful data.
Partnerships - Events
  • We gave a presentation on our vessel-tracking work at a meeting attended by dozens of representatives from federal government agencies.
  • We participated in a roundtable discussion at the Center for a New American Security focused on developing information-sharing platforms for large areas of interest to multiple nations.
  • On May 19 we'll give a presentation at a workshop hosted by National Geographic, NOAA and the State Department on monitoring and enforcement strategies for marine protected areas.
  • In June we'll be at the Economist World Ocean Summit in Portugal to present progress on Global Fishing Watch, including some research results, with our Oceana and Google partners.

Another Head-Scratching NRC Report From Taylor Energy Site

Howzzat now?
 Just a few days ago we wrote about a slick more than 16 miles long on a Landsat-8 satellite image of the Taylor Energy chronic leak site in the Gulf of Mexico.  We've also pointed out, many times, that the official spill reports that Taylor Energy is required to submit to the National Response Center typically describe a much smaller slick than what we have repeatedly observed on satellite images and from independent aerial overflights.  

Well, guess what?  The latest weekly dump of NRC reports was just made available by the Coast Guard, and our faithful little report-scraping robot just pushed them out through our SkyTruth Alerts incident mapping and email-alerting system.  And once again, what Taylor reported on May 7th doesn't jive with what we observed in the Gulf that same day.  

Taylor reported a slick 9.7 miles long and half a mile wide, covering a total area of 4.85 square miles (12.56 sq km), based on an aerial overflight that took place at 9:15am local time on May 7.  They estimate the total volume of oil in this slick amounts to 14.6 gallons. 

We observed a slick more than 16 miles long and covering a total area of 5.95 square miles (15.4 sq km) on a Landsat-8 satellite image that was taken just two hours after Taylor's overflight, at 11:25am.  Based on a conservative thickness estimate of 1 micron for the slick, we calculate the slick holds 4,066 gallons of oil.  

Satellite image analysts with the federal government, at NOAA's National Environmental Satellite, Data and Information Services division (NESDIS), have also been using satellite images to monitor the Gulf.  They reported to the NRC a slick over 17 miles long, but didn't give an area or volume estimate.  Based on their description of the slick, we're certain they were looking at the same Landsat-8 image that we analyzed.  Our measurements of the slick length are comparable.  

So, SkyTruth and government analysts documented a slick almost twice as long as the slick Taylor reported.  And our conservatively estimated volume is 278 times greater than Taylor's report.  Even if we take Taylor's slick-length report at face value, applying a 1 micron thickness value to a slick covering 4.85 square miles yields a volume estimate of 3,316 gallons.  To take that down to their total reported volume of only 14.6 gallons, you'd have to assume the oil only covered 0.4% of the 4.85 square mile area they  reported as being an oil slick observable from the air. Seems unrealistic, doesn't it?

Friday, May 8, 2015

At Last: FracFocus Now Publishing Machine-Readable Data

Gas drilling and fracking in the Jonah Field on public lands in western Wyoming. Photo courtesy Bruce Gordon / EcoFlight.

If you've been a faithful reader of this blog, you've seen a relentless series of posts from us criticizing the functional failures of FracFocus as a tool for the effective public disclosure of chemicals used for fracking at oil and gas drilling sites nationwide.  Well, today we got some good news: FracFocus has finally stepped up to fix one of those problems, and is now making the chemical data available in a aggregated, machine-readable database.  Data geeks, have at it, and let us know what you learn!  But note the caveats from FracFocus:
Disclosures submitted using the FracFocus 1.0 format (January, 2011 to May 31, 2013) will contain only header data. Disclosures submitted using the FracFocus 2.0 format (November 2012 to present) will contain both header and chemical data. NOTE: Between November, 2012 and May 31, 2013 disclosures in both 1.0 and 2.0 formats were submitted to the system. After May 31, 2013 only disclosures submitted in the 2.0 format were accepted.

The database contains information exactly as reported to FracFocus, and only the data displayed on the disclosure PDF files. FracFocus does not alter or modify the submitted data in any way.
Why did SkyTruth first raise this issue to the attention of the public and other NGOs in June 2012? Why did we work to make it a high-profile element of the national debate about fracking through  testimony to Congress, comments on federal rulemaking, and direct communication with high-level policymakers? Because without specific, complete and trustworthy data identifying the chemicals, and the exact time and place those chemicals are injected into wells for hydraulic fracturing, you can't do the science to investigate and conclusively prove (or disprove) that air or water contamination, or public health problems, are being caused by modern drilling with high-volume hydraulic fracturing.  And, in our opinion, without good science, you can't make good policy.

So this is a very positive change, but it's only a first step.  Now we hope FracFocus will quickly follow this up by addressing the other major problems that continue to hamper public use of the data, and thwart the intent of state and federal laws requiring public disclosure: poor data quality, the lack of curation of the data and chemical disclosure reports, and -- worst of all -- the indiscriminate, unjustified use of "trade-secret exemption" that allows the oil and gas industry to arbitrarily hide the identities of fracking chemicals from an increasingly concerned public.  

It shouldn't take another 3 years to fix those problems. Let's get it done.