Solutions to H20 pollution elude officials in Cabot gas field Five years after blast, Pa officials continue tests in Dimock

Five years after the explosion of Norma Fiorentino’s water well signaled all was not well in Cabot’s Marcellus shale gas operation in northeast Pennsylvania, state environmental officials are still trying to gauge the impacts of drilling on the water supplies of local residents.

The agency is scheduling another round of tests to see whether methane levels in Dimock water wells are safe, Colleen Connolly, a spokeswoman for the Department of Environmental Protection, confirmed this week. It's the latest step in an investigation that literally began with a bang on New Year's Day, 2009. The explosion of the Fiorentino well prompted an investigation by the DEP that concluded water wells serving at least 19 homes contained explosive levels of natural gas that had migrated underground from Cabot’s nearby drilling operations.  Since then, dozens of water wells in Susquehanna County have been taken off line due to methane contamination.

Some of the Dimock residents agreed to a settlement with Cabot, negotiated by the DEP, that compensated the parties with payments worth twice the assessed value of their properties, and systems to filter their water. Others have held out. They believe the systems, which require maintenance, are not an effective answer to the problem and do not filter other harmful chemicals associated with drilling. The settlement was finalized in 2010 under DEP Secretary John Hanger (now a gubernatorial candidate).  Hanger, who headed Governor Ed Rendell’s DEP, had originally pushed for an $11 million infrastructure project, to be paid for by Cabot, to restore fresh water to the residents. Cabot opposed the plan for a water line, and the administration withdrew it soon after Tom Corbett, an industry supporter, was elected governor.

Although Cabot continues to develop the Marcellus Shale throughout Susquehanna County, the DEP has banned the company from drilling within a 9-square mile area around Carter Road until it fixes an unremitting methane problem there.

Working with the settlement as a blueprint, Cabot has restored water to some but not all homes through special filtration systems or bottled water. But problem areas persist. Several polluted homes have been abandoned, including two on Carter Road bought by Cabot. The company bought 1101 Carter Road, once home to outspoken fracking activists Craig and Julie Sautner, and demolished the ranch house last year. It then sold the vacant parcel to a neighbor for a fraction of the purchase price, with a condition written in the deed that no residence could ever be built there. Late last year, Cabot bought the home of Mike Ely, on the south end of Carter Road, although the company has not answered questions about its plans for the contaminated property.

Several other homes in the area remain vacant after having been sold to other parties, reportedly for interest in mineral rights. Three vacant homes happen to be near Cabot’s failed Costello gas well, which officials have indentified as a possible source of methane pollution.  This week, Connolly reiterated that the Costello well, near the intersection of the south end of Carter Road and State Route 3023, was “unviable” and “”remedial work is continuing at the gas well, and Cabot and DEP continue to evaluate results at the water wells.”  In addition to fluctuating methane levels, previous tests have shown levels of iron and manganese that were elevated but within standards in some water samples. Elevated levels of these elements are “not uncommon during gas migration,” she reported.

Before Cabot can resume drilling in the banned zone, Connolly said, the company must “demonstrate compliance” with the 2010 Consent order. “We have scheduled another round of testing to determine whether the gas migration event has ceased,” she added. Connolly could not immediately say how many homes will be included in the sampling collection. Sources in the field told me that the DEP plans to test all 19 homes listed in the consent agreement, but that the agency has not been granted access to all the homes.

As I have found with many stories about shale gas, a central problem is a lack of information. Some of this is because state regulators, dependent on updates from companies that are exempt from many disclosure laws, are still trying to figure out exactly what is going on. And some of it is due to the fact that companies are reluctant to share certain information that casts operations in a negative light. This is all complicated by some residents who feel what is happening on their property is their business, others who want to show the world what they want the world to see, and still others working in good faith to expose and understand problems with the intention of making things better. In short the problem is cast in a muddle of projections from stakeholders with widely divergent interests and ideological footing. Chief among these is Cabot, which possesses the facts about what is happening at its restricted sites and underground, test results, along with rights to the land under question.

In addition to speaking with Connolly and people in the field, I have called and emailed Cabot spokesman George Stark over a period of months for an update. Here is one of my email queries from Dec. 10. 2013:

Hi George,

I’m following up on Cabot’s recent purchase of Mike Ely’s property on Carter Road and have some questions related to that:

Why did Cabot buy the property? 

What plans does the company have for it?  

What is the status of the nearby Costello well? Is it all fixed?

Does the company expect to be able to resume development in the 9-square mile “no drill zone”?

Also, a question related to the former Sautner property now owned by the Mayes: Why did Cabot forever prohibit building a home on the property as part of the land covenant?

 Here is Stark’s response, which came a month later, on Jan. 9, after I left several phone messages:

Tom,

Got your message yesterday about the former Ely property. 

Cabot entered into a private business transaction with the prior owner of the property. The sale was agreed to by both parties and we are now the current owners. 

George

Trying to apply his answer to the questions at hand in any meaningful way was fruitless, so I emailed Stark again:

Hi George 

Thanks for responding. But your statement does not answer any of my questions. Here they are again: 

Why did Cabot buy the property? 

What plans does the company have for it? 

What is the status of the nearby Costello well? Is it all fixed? 

Does the company expect to be able to resume development in the 9-square mile “no drill zone”? 

Also, a question related to the former Sautner property now owned by the Mayes: Why did Cabot forever prohibit building a home on the property as part of the land covenant?

That was January 9. Since then I have also left voicemails. I am still waiting for a reply. If Stark’s response, or lack of a response, has any journalistic value in the meantime, it illustrates how some companies deal with these kinds of unpleasant questions. They ignore them, or offer a statement of fact that appears to be authoritative but is actually irrelevant.

There are people on all sides of the debate over the merits and risks of shale gas development who share a sense or frustration over lack of information. A group of drilling proponents called Dimock Proud has been especially critical of the DEP for implementing the no-drilling zone in Dimock without engaging all the people who live there, including those eager to see shale gas development proceed. In their view, the DEP has been operating too much out of the public eye. The group represents people who are in position to make money when Cabot drills on their property. The Dimock Proud web site features letters to the DEP complaining that the agency has ignored their requests for information -- specicially, explanations of the no drill zone around the problem wells and why the ban applies to people in the 9-square mile area who want to see their shale gas developed. The group stresses this compaint:

Dimock landowners have written you countless letters, signed petitions that we sent to you, and absolutely begged you to let us out of that arbitrary 9-square miles. You did nothing! You didn’t even acknowledge receipt of the petitions.

The controversy over drilling and fracking in Dimock is one of many in countless communities in dozens of developing shale gas basins across the country. Some problems are unique and some universal. But Dimock, just across the border of New York State, was one of the first where the media spotlight focused intensely on the gas boom that is transforming the country. And given the persistence of problems there, it's where it might also shine the longest.

The razing of 1101 Carter Road: The rest of the story… Land “covenant” in deed forbids “human habitation”

The Sautner home became focus of the antifracking movement
PHOTO JAMES PITARRESI 

When I last visited Carter Road, a contractor for Cabot Oil & Gas was demolishing the former home of Craig and Julie Sautner, the anti-fracking activists who had relinquished their three-bedroom ranch as part of a settlement with the Texas drilling company. This was part of a larger dilemma in their hometown of Dimock, Pennsylvania, where the Sautner’s water well was polluted by nearby Cabot drilling operations, according to records from the state Department of Environmental Protection. It’s a charge that Cabot has denied publically and settled privately – with the Sautners and dozens of other plaintiffs.

The Sautner property – adorned with anti-fracking posters and inhabited by some of the most vocal and visible of fracking critics -- had become a particular symbol of the tensions that divided the community. Julie and Craig were featured in various high-profile accounts of the conflict as either victims, heroes or phonies. The aquifer that provided water to their home on 1101 Carter Road, and to 64 other homes in

EPA tecs sample water at Sautner home in 2012

Photo: JAMES PITARRESI

the area, was the focus of a controversial EPA investigation that found pollution at levels posing safety threats in 8 percent of the wells. Instead of making recommendations, the federal agency deferred to the industry’s solution, approved by the state, which was to deliver water in bottles and tanks to affected homes and provide filtrations systems. The Sautners and some other residents found those measures ineffective, and they unsuccessfully pursued a water line from the nearby village of Montrose – a measure that would have cost Cabot more than $11 million.  (A more full account of that story here.)

As part of an eventual settlement, the Sautners sold their property to a Cabot subsidiary for $167,500. Cabot demolished the vacant house, company spokesman George Stark told me after my visit last month, because the company was planning to sell the property, and it was more marketable without the
structure. Yet that answer doesn’t square with information on a deed that has since been filed in the Susquehanna County Court House in Montrose. After demolishing the house, Cabot sold the 3.3 acre parcel to Tim and Debbie Maye – owners of an adjoining property -- for $4,000. (Perhaps the absence of the house is an asset to Cabot, which retained the mineral rights on the Sautner acreage, although it’s worth noting that the DEP has forbid the company to drill in the area until it resolves the persistent problem of methane seeping into some water supplies in nine square miles around Carter Road. It's also worth noting that the Mayes have a history with Cabot that's antithetical to the Sautner's. The Mayes, who were once critical of the company, became shale gas supporters after they settled pollution claims of their own )

The most striking aspect of the sale, however, is this: The new owners of 1101 Carter Road are bound by certain conditions set forth in the deed, in parlance that may fairly be described as epic. It forbids a “residence or dwelling for human habitation” on the land. The time frame for this and other restrictions is “forever,” to be observed by future generations as “covenants running with the land.”

The sale, first reported this week by Laura Legere for State Impact, represents a kind of denouement to a story that I have been following for years while reporting for the Press & Sun Bulletin, in writing Under the Surface, and for this blog. The Sautners were initially enthusiastic and expectant supporters of shale gas development when the landman convinced them to lease their mineral rights in 2008. Their story, and the story of more than dozens others affected by Cabot’s operations, captures a complication that belies a common industry pitch:  Everyone’s a winner with shale gas development. Landowers get royalties, others get jobs, and there is cheap abundant energy for all. Claims of water contamination are exaggerated, fabricated, or trumped up by overreaching regulators.

In reality, there are economic winners and losers, as well as substantial environmental risks and trade-offs. The risks and trade-offs are hard to quantify because the industry is exempt from reporting requirements to disclose what it puts into the ground to stimulate wells, and what comes out. Whether you find this acceptable is likely to depend on whether you trust the industry more than government, your tolerance for mineral extraction in places you care about, and your belief in the wisdom of investing heavily in a fossil based energy system to meet 21st century challenges.

We know this: In some places gas is flowing, and with it, economic bounty to a mix of parties. But we also know this, like most things in life, is a circumstantial and transitory condition. The reality of the matter is that it often takes teams of bankers, lawyers, real estate agents, insurance actuaries, and regulators to sort it all out while being mindful of split estates, law suites, lease language, liabilities, and policy that can cut both ways depending on the proficiency and determination of various stakeholders. In the end, the example on 1101 Carter Road left a new land “covenant” forbidding “human habitation” at a place once called home by the Sautners.

Cabot demolishes home central to Dimock water dispute Methane problems persist in 9-square mile no-drilling zone

The Sautner home became focus of the antifracking movement
PHOTO JAMES PITARRESI 

Cabot Oil & Gas executives may have ongoing problems with operations in Dimock Pennsylvania, but the status of water quality at 1101 Carter Road is no longer one of them.

After years of controversy, Cabot last year paid an undisclosed amount to owners of that property, Craig and Julie Sautner, to settle claims that drilling contaminated their water well. As part of the deal, Cabot acquired the 3.6-acre property, the status of which remained a matter of speculation until last week when flatbeds unloaded a demolition excavator and multiple dumpsters in the driveway of the vacant home.

The arrival of the demolition crew marked a concluding chapter of a conflict that began in September, 2008, when the Sautner’s water suddenly went bad after Cabot crews drilled a nearby gas well into the Marcellus Shale. Under oversight by the Pennsylvania Department of Environmental Protection, Cabot attempted to restore the Sautner’s water with a system of filters and tanks, which took up a substantial part of the basement. The system proved ineffective, and the company began delivering bottled water to the house.

Since then, the three bedroom ranch, sitting tidy and plumb under a canopy of maple trees off the bucolic dirt road, has become a symbol of the anti-fracking movement in the heart of Cabot’s most prolific well field.

EPA investigation begins at Sautner home in Jan. 2012
PHOTO JAMES PITARRESI 

As drilling intensified in the area, Cabot began dealing with similar water complaints at dozens of other homes in the Carter Road area. After investigating the complaints, the DEP held Cabot drilling operations into the Marcellus Shale responsible for methane contamination in 18 water wells, and eventually ordered the company to install an $11 million pipeline to deliver water to the homes. Cabot resisted, and the DEP’s order caused a political fracas that split the community. A group of residents, including those receiving royalty payments and other compensation from the company, sided with the industry and characterized those demanding the water line as malcontents. Plans for the water line were dropped after Tom Corbett, a gas drilling proponent, was elected governor in 2010. But the DEP continued to enforce a ban on drilling in a 9-square mile area around Carter Road where problems persisted.  The primary constituents affecting the wells – methane, arsenic, barium and other metals -- are naturally occurring, and also a product of drilling.

My coverage of this story for the Press & Sun-Bulletin, and later in writing Under the Surface and posts for this blog, brought me into the Saunter’s home on several occasions. The house, with three bathrooms and a finished basement, was fairly new and well kept. A barn-star adorned unblemished vinyl siding next to the garage entrance, and America the Beautiful was inscribed in a silvery stencil on the wall opposite the entrance in the main foyer. The interior decor reflected the Sautner’s fondness for wall art and country nick knacks, carefully arranged, along with framed photos of the Sautner’s teenage children – Cody and Kelly -- and their various pets, including Emmi, an overprotective Chihuahua that had to be contained when visitors arrived.

Cabot contractors demolish the former Sautner property
PHOTO TOM WILBER

The home drew national media attention in 2012, when the federal Environmental Protection Agency, assessing data compiled by Cabot and the DEP, determined that the aquifer feeding the Sautner’s well and other homes in the area showed hazardous levels of pollution. Richard Fetzer, the EPA’s site coordinator, summed it up this way in an internal memo on Jan. 19, 2012: “What is clear is that this data strongly suggests that hazardous substances have been released and are present in some home wells at levels that may present a public health concern.”

The federal agency began it’s own series of tests, and found arsenic, barium, manganese, chromium, and methane in five of 61 wells at levels “that could propose a health concern.” The agency determined no follow up was necessary, however, because residents of affected homes had been notified and polluted wells were taken off line or equipped with filters. The contamination -- in roughly 8 percent of the wells tested -- was from naturally occurring compounds that are also used in or associated with drilling operations, which can exacerbate existing problems or introduce new ones.

Frustrated that Cabot avoided accountability for the problem, the Sautners emerged as dedicated and nationally visible critics of the industry with a degree of animosity that grew with each passing year. They filled their yard and garden with anti-fracking posters, and jugs of brown water. They appeared on television and radio shows and were featured at anti-fracking rallies and concerts, typically carrying the water jugs that became something of a trademark of the movement. Notably, the Sautner’s story was featured in Gasland, the Emmy-award winning film by Josh Fox that premiered on HBO in 2010, and which was largely responsible for inspiring the anti-fracking movement.

The Sautner’s approach -- blunt, antagonistic, and sustained – was eventually met by counter attacks from Cabot and gas supporters, both locally and nationally, determined to discredit their claims. While Josh Fox portrayed the Sautners as victims-turned-activists in Gasland, filmmaker Phelim McAleer, from Ireland, depicted them in his film Frack Nation as self-serving and exploitive phonies. (My reviews of both films can be found here.)

A new message at 1101 Carter Road
PHOTO TOM WILBER

The story is complicated by water quality tests that show different things at different times to different parties, and a settlement with Cabot that forbids parties to talk about the case. We know that, while the Sautner home apparently passed spec when the EPA took samples in January, 2012, it had a documented history of pollution prior to that. We also know that the EPA confirmed water problems at five homes. And we know that, in addition to whatever other terms the Sautners settled with Cabot, they received  $167,500 for their property; and it struck me as newsworthy when I heard that contractors working for Cabot had arrived last week to demolish the home.

I placed a call to Cabot spokesman George Stark, who told me that the company had a potential buyer for the land and that it was more marketable without the house.  Stark said he did not know if the land would be developed, and could not offer other details.

An obvious line of thinking, reflected on anti-fracking list serves, is this: With no home, there is no well, and with no well, there is no liability related to water pollution, at least at 1101 Carter Road. But water pollution at other homes continues to plague the company. Regulators are now focusing on methane pollution in three water wells about a mile south of the Sautner home, where Carter Road tees into State Route 3023. The DEP has indentified Cabot’s Costello gas well at this location as the primary suspect.

Stark said that a service rig, which has been at the site for months, allows crews to “monitor” the casing of the gas well, which appears sound.

DEP officials explained it differently. They have not pinpointed a source, according to a recent report in the Scranton Times Tribune quoting DEP spokeswoman Colleen Connolly. But they have determined that the suspect gas well is "unviable" and will have to be plugged. In an email response to my query, Connolly reported that Cabot is ”continuing remedial efforts” at the Costello gas well and “evaluating the effectiveness” of the work.  Methane levels are fluctuating, she said. Additionally, tests have shown levels of iron and manganese that were elevated but within standards in some water samples. Elevated levels of these elements is “not uncommon during gas migration,” she reported.

New and substantial research shows that methane migration from shale gas development is not an isolated problem. A recent study published by the Proceedings of the National Academy of Sciences shows that methane concentrations to be, on average, six times higher for homes with water supplies a kilometer or less from Marcellus Shale gas wells. Ethane, another component of natural gas, averaged 23 times higher for homes within a kilometer from natural gas wells.

The Sautners were not on hand to see the demolition of their former home. After the settlement last year, they moved away – first to Ithaca New York, and later to Tennessee. The new owner, not surprisingly, had removed all the anti-fracking signs in the yard and replaced them with a single blue placard that read “Dimock Proud! Where the water IS clean and the people are friendly.”

The excavator raised its boom and swung it toward the side of the garage. It came to an abrupt stop just before impact. The operator then raised the talons of the bucket to the top of the garage, and guided them in a slow arch, peeling back a swath of roof. The machine began biting into the asphalt tiles, roof boards and rafters. Within an hour, the two-car garage was mostly gone, and the machine continued chewing apart the house and packing wads of siding, insulation, wiring and splintered timber into dumpsters. By the end of the next day, all traces of the house were gone, except the foundation, which was filled in shortly thereafter.

The Sautners are bound by the non-disclosure clause from discussing the Cabot settlement or the water issue. But Craig Sautner did offer this about the demolition: “Their (Cabot’s) actions speak louder than words. There is nothing that I can say that tells the story any better than what they did.”

Time will tell whether 1101 Carter Road remains an uninhabited part of Cabot’s oil patch. The company, meanwhile, is staking much of its future on the gas field in northern Pennsylvania. According to Richard Zeits, reporting for the financial website Seeking Alpha, Cabot officials anticipate at least 3,000 future drilling sites on several hundred thousand acres in Susquehanna County. Yet at the heart of this area, where it all began, the future of the nine-square mile no-drill zone remains awkwardly bound to its legacy of water issues.

Note: This video of the demolition was taken by Vera Scroggins, an anti-fracking activist who lives in Susquehanna County.

Dimock water problems continue after four-plus years Results of recent cases in fracking zone not yet released

Crews use a service rig in Dimock to diagnose problems
PHOTO VERA SGROGGINS 

DIMOCK, Pa. -- More than four years after the explosion of a residential water well called attention to the problem, Pennsylvania environmental officials are still trying to solve water pollution in this small town that has become infamous for shale gas development.

Recent cases involve two homes in a gas field where the Pennsylvania Department of Environmental Protection has banned drilling of new wells in the wake of chronic water pollution tracked to nearby operations of Cabot Oil & Gas. Cabot crews continue to operate a service rig between gas wells and water wells to diagnose problems in an area where the DEP has found dangerous levels of methane flowing into residential water wells near the junction of Carter Road and State Route 3023.

Colleen Connolly, a spokeswoman for the Department of Environmental Protection, said this week that the agency has not determined when the latest round of testing will be released.

Cabot has been cited in the past for various violations that the DEP has linked to problems. Wells providing water to several dozen homes have been taken off line or fitted with filtration equipment to remove gas and other pollution since the water well of Dimock resident Norma Fiorentino exploded on New Year’s Day, 2009.

Although drilling has been banned in a nine-square mile area where problems are the worst, the DEP recently allowed fracking to stimulate production of exisiting wells. Two months ago, DEP officials responded to complaints that drinking water at several homes became turbid after crews fracked nearby natural gas wells.  Subsequent tests showed two water wells serving homes along State Route 3023 contained explosive levels of methane, according to information from the DEP.  Cabot Spokesman George Stark did not return calls for comment. In the past, he has said the problem may be linked to a frozen vent.

In addition to methane, the DEP is testing water samples taken from affected homes for various other contaminants, including metals and chlorides (listed below), which are markers for pollution from gas drilling and production.

With the recent announcement that DEP Chief Michael Krancer is stepping down, the problem will be passed on to the third administration. In 2010, John Hanger, who served as Governor Ed Rendell’s top environmental official, found that shale gas operations had ruined the aquifer serving homes in and around Carter Road. As a remedy, Hanger ordered Cabot to build an $11 million pipeline to restore fresh water to affected homes. After the order, Cabot denied that it was responsible for pollution, and the pipeline order was eventually defeated amid political opposition when Tom Corbett, a drilling supporter, was elected governor.  Last August, Cabot reached an undisclosed settlement with 32 of 36 Dimock families suing for damages related to pollution of water wells.  Other lawsuits are pending.

In an investigation last year, the federal Environmental Protection Agency found elevated levels of arsenic, barium, manganese, or methane, in five of 64 water wells – roughly 8 percent. It concluded that the concentrations could pose health risks, but those risks were mitigated by treatment systems drilling companies had installed or planned for the homes. The federal Agency for Toxic Substances and Disease Registry is now following up with an evaluation of it’s own.

Early this year, the DEP came under fire about how it handles testing at sites suspected of pollution from gas development. In January, Pennsylvania Auditor General Eugene DePasquale announced a review of the agency’s regulation, testing and enforcement program. The intention of the probe, according to a letter from DePasquale to Krancer, is to determine the "adequacy and effectiveness of DEP's monitoring of water quality as potentially impacted by shale gas development activities, including but not limited to systems and procedures for testing, screening, reporting and response to adverse impact such as contamination."

The recurring problem of pollution related to shale gas and related public relations issues will be inherited by Krancer’s successor.

While methane migration is not unique to Dimcok, the rural community has been divided by the issue, and is featured as a case study and focal point of the anti-fracking movement just across the state border in New York, where fracking is on hold pending a more extensive review of environmental and health issues.

What the DEP is testing for in Dimock water wells:

MANGANESE
BARIUM
IRON
STRONTIUM
TDS
CHLORIDE
Hardness
pH
SPC
ALKALINITY
BROMIDE
SUSP SOLID
SELENIUM
ARSENIC
SULFATE
MAGNESIUM
ALUMINUM
CALCIUM
POTASSIUM
LITHIUM
SODIUM
ZINC
TURBIDITY
METHANE
ETHANE
PROPANE

Source: DEP 

Pa. DEP considers fracking in Dimock water pollution case Tainted water wells in no-drill zone, but fracking allowed

Pennsylvania environmental officials are attempting to track the source of explosive levels of methane in two private water wells in a shale gas field in Dimock, Pennsylvania.

That in itself is not especially newsworthy. The small town in northern Susquehanna County has been the focus of state and national investigations since 2009, when gas linked to nearby drilling by Cabot Oil & Gas seeped into the aquifer and caused a water well to explode. It’s significant, however, that the recent problems emerged in the middle of a 9-square mile area where the DEP banned drilling four years ago due to chronic methane migration problems. It’s also significant that the agency allowed fracking to resume at two nearby gas wells.

 EPA technician collects samples at a Dimock home last year
Photo James Pitarresi 

Dimock, population 1,400, was among the first Pennsylvania towns to feel the expectations and impact of the Marcellus Shale rush. Much of the town was leased for shale gas exploration in 2006 through 2008. Since then, a history of problems and complaints have made Dimock a household name for those questioning the role of shale gas extraction in the country’s energy future.

Last August, Cabot Oil & Gas reached an undisclosed settlement with 32 of 36 Dimock families suing for damages related to pollution of their water wells.  Other lawsuits are pending. Due to widely publicized concerns, the federal Environmental Protection Agency began its own investigation last year. After six months of testing, the EPA found elevated levels of arsenic, barium, manganese, or methane, in five of 64 water wells – roughly 8 percent. It concluded that the concentrations could pose health risks, but those risks were mitigated by treatment systems drilling companies had installed or planned for the homes. The federal Agency for Toxic Substances and Disease Registry is now following up with an evaluation of it’s own.

In recent weeks, investigators, responding to complaints, have found two new cases where methane concentrations in private water wells pose an explosion hazard, said Colleen Connolly, a spokeswoman for the DEP.  The contaminated water supplies are near the Costello and Gesford gas wells. Those wells, drilled into the Marcellus Shale, were fracked last fall, Connolly said.

And this makes the story more than another gas-migration case. The industry has disputed claims that fracking – the use of pressurized chemical solution to break rock and release gas in deep formations – poses a threat to water tables above them. In fact, it has denied that it has ever happened. That denial is at the root of a national controversy that has raised the stakes on the outcome of ongoing investigations by the DEP and the EPA in Dimock and elsewhere.

It is known that methane migration can happen naturally in gas rich zones. It is also known that drilling (apart from fracking) can cause or intensify problems by opening pathways through the aquifer into pressurized zones below. The problem is managed by casing the well bore with cement to seal off the aquifer, a method that is effective but not foolproof.  

Not do be confused with drilling, fracking is done to stimulate the flow of gas after the well bore has been cemented. It’s functionally and technically a separate process from drilling. The industry’s insistence that fracking cannot create pathways for pollution to reach the aquifer has drawn scrutiny in several controversial cases.

An EPA investigation in 2011 found water wells near fracking operations on the Wind River Indian Reservation in Pavillion, Wyoming were polluted with synthetic chemicals, glycols, alcohols, methane, and petroleum hydrocarbons “consistent with gas production and hydraulic fracturing fluids.” The drilling company implicated in the study, EnCana, has denied responsibility, and the industry is challenging the EPA conclusions.

In a lesser-known case, the Ohio Division of Mineral Resources Management concluded that fracking caused an explosion in Bainbridge in 2007. One house was destroyed and 19 other homes were evacuated due to high methane levels.  According to the agency’s investigation, the problem arose when Ohio Valley Energy Systems Corp fracked the well without properly cementing the production casing.  

The most recent problem in Dimock surfaced after a water well near a gas well turned turbid in early February, according to the DEP's Connolly. She declined to disclose the location, but residents report that crews have been working at two affected homes near the intersection of Carter Road and State Route 3023, which are also near gas wells that have been fracked.

Cabot Spokesman George Stark was unavailable for comment today. The company has blamed the problem on a frozen pipe used to vent methane gases, Connolly said.

The water wells have been taken off line, and methane concentrations have fluctuated since the problem began, Connolly said. Regulators have not reached conclusions about the cause of the problem, and they are continuing to monitor the work of Cabot, Connolly said. Cabot contracts Crews were at the site last week with a drilling rig used to service and inspect gas wells.

While there is relatively little documentation associating high volume hydraulic fracking to water pollution -- apart from spills and accidents related to handling fracking chemicals and waste above the surface before and after they are injected into the ground -- risks of methane migration from drilling are relatively well known. In September, 2009, the DEP issued a draft report that found methane migration from gas drilling, had “caused or contributed to” at least six explosions that killed four people and injured three others in Pennsylvania alone over the course of the decade preceding full-scale Marcellus development. The threat of explosions had forced 20 families from their homes. At least 25 other families have had to deal with the shut-off of utility service or the installation of venting systems in their homes. At least 60 water wells (including three municipal supplies) had been contaminated.

Methane migration problems continue in Pa. drilling towns

A shale gas drilling operation in Frankln Township, Pa.
Photo: James Pitarresi, PitarresiPhoto@gmail.com

Methane is again seeping into water wells in Susquehanna County, despite stronger regulations enacted by the state last year in an attempt to control the problem near shale gas operations.

DEP officials have recently collected a second round of samples from water wells of three homes in Franklin Township after initial testing showed elevated levels of methane, said Colleen Connolly, a spokeswoman for the DEP.  Officials suspect that the pressurized methane could have passed from gas baring zones into the aquifer along imperfections in cement casings designed to seal off well bores.  

Franklin is about 15 miles north of Dimock, Pa., a place that gained national attention after Norma Fiorintino’s water well exploded in January, 2009, triggering an investigation and lawsuit that have become emblematic of the controversy over shale gas development. The DEP Bureau of Oil and Gas Management has files on more than fifty other cases of methane migration dating from the beginning of 2004 to the time Fiorintino’s well exploded. All involved dangerous and sometime fatal accumulations of gas migrating from new or abandoned wells into enclosed spaces. According DEP files, methane migration has “caused or contributed to” at least six explosions that killed four people and injured three others over the course of the decade preceding full-scale Marcellus development.

Residents in Franklin Forks attended a Township meeting on Wednesday to explain problems that began affecting their wells after drilling began near their homes. One resident showed a video of pressurized gas hissing from her well. WPX Energy is drilling in the area, although the source of the problem has not been conclusively identified.

Click here for a video of the meeting.

The DEP updated cement casing requirements in February of 2011 to mandate a higher grade of cement, pressure testing, and more inspections, but problems have persisted.  In May of 2011, The DEP fined driller Chesapeake Energy $1.1 million for a series of water contamination incidents and a well-site fire that injured three workers. The company agreed to pay $900,000 for allowing methane to migrate up faulty wells in Bradford County, contaminating 16 families’ drinking water beginning in 2010. It also paid $188,000 for a tank fire at a well site in Avella, Washington County.