Posts Tagged ‘gas-drilling process’

The board is still considering building a second plant.

By Steve Mocarskysmocarsky@timesleader.com
Staff Writer

HANOVER TWP. – The Wyoming Valley Sanitary Authority board has decided not to treat wastewater from the Marcellus Shale gas-drilling process at its current plant, but is still considering building a second plant for that purpose.

Fred DeSanto, executive director of the authority, informed the state Department of Environmental Protection last week that the board wanted to withdraw an application to revise its current permit to allow treatment of wastewater high in total dissolved solids from gas and oil drilling operations.

After meeting with DEP officials, who explained the requirements the authority would have to meet for a revision, authority officials decided it would be too risky to contract with an energy company to accept 150,000 gallons of wastewater per day and possibly exceed the limits of dissolved solids imposed by DEP, said Robert J. Krehley, the authority’s director of administration and planning.

“We just knew that a good majority of the time, we’d be over the limits,” Krehley said.

DeSanto said the board is waiting to hear from a consultant it hired to look into the feasibility of constructing a stand-alone plant.

John Minora, president of Pennsylvania Northeast Aqua Resources, said his staff is still researching some technical issues, but he expects to make a recommendation to the board at the next meeting on April 20.

Minora said he’ll likely recommend constructing a second plant because it would benefit the authority and ratepayers as well as energy companies; it’s just a matter of working out details based on data he is still waiting to receive.

Disposing of wastewater in Hanover Township would save energy companies in transportation costs, given that the closest treatment plant that can process drilling wastewater is in Williamsport, and the next closest is in Somerset County. The Williamsport plant doesn’t have the capacity for wastewater from all nearby drilling sites, he said.

Minora said a “closed-loop” treatment plant would remove solids from the water; the solids would be disposed of in landfills. The treated drilling water would be high in chloride and diluted with treated water from the authority’s current treatment plant; that blended water could be sold back to drilling companies to re-use in drilling operations.

Given that the current plant would be discharging less treated water into the Susquehanna River because it would be added to the treated drilling water, the authority would in turn discharge less nitrates and phosphates into the river. The authority could then sell credits to other treatment plants that discharge nitrates and phosphates in excess of state limits, Minora said.

The additional revenue could be used to stave off rate increases to customers.

Steve Mocarsky, a Times leader staff writer, may be reached at 970-7311.

Copyright: Times Leader

The initial events polluted a wetland and caused a fish kill in Susquehanna County.

By Rory Sweeneyrsweeney@timesleader.com
Staff Writer

Cabot Oil and Gas has been issued a letter of violation for two liquid-gel spills last week at the company’s Heitsman natural-gas well pad in Susquehanna County, the state Department of Environmental Protection announced on Tuesday.

The spills of about 8,400 gallons, which polluted a wetland and caused a fish kill in Stevens Creek, were followed up by a third spill at the site on Tuesday morning, according to DEP spokesman Dan Spadoni.

A hose burst, according to DEP, and released about 420 gallons of the same lubricant. A catch basin retained most of it, Cabot spokesman Ken Komoroski said, but it’s unknown what happened to 10 gallons.

He said he was unaware of the spills causing any environmental damage, but acknowledged that a dam created to block the contaminant caused flow problems and that DEP noticed “the minnows downstream were distressed and/or swimming erratically.”

“We think that it’s important to residents that no contaminants from the spill have compromised Stevens Creek,” he said.

The spilled material, known as LGC-35, suspends sand in water to fracture rock in the gas-drilling process used in the Marcellus Shale region.

LGC-35 is a “potential carcinogen,” according to its Material Safety Data Sheet, and can cause eye, skin and respiratory irritation, along with “central nervous system effects,” such as dizziness and headaches.

Komoroski said the drilling contractor, Halliburton, has since revised the safety sheet to exclude the carcinogenic reference because the potential cancer-causing agent is a “potential contaminant” to the gel, not part of its formula. Halliburton told Cabot the contaminant wasn’t present in the spilled batches, but Cabot is performing its own testing to confirm that, Komoroski said.

He added that Cabot feels Halliburton should have been cited for the spill. Halliburton had flushed the wetlands with clean water and collected the effluent before the third spill, Spadoni said, and it won’t be known whether the land needs to be excavated until results from soil samples are announced. “I would anticipate that would be done fairly soon,” Spadoni said.

Cabot has 10 days to respond to the violation notice with how it plans to further clean the affected area and prevent future spills. DEP may assess a civil penalty in the case, for which Komoroski said Cabot would seek compensation from Halliburton.

Copyright: Times Leader