Elizabeth Royte writes at the Nation:
Jacki Schilke and her sixty cattle live in the top left corner of North Dakota, a windswept, golden-hued landscape in the heart of the Bakken Shale. Schilke’s neighbors love her black Angus beef, but she’s no longer sharing or eating it—not since fracking began on thirty-two oil and gas wells within three miles of her 160-acre ranch and five of her cows dropped dead. Schilke herself is in poor health. A handsome 53-year-old with a faded blond ponytail and direct blue eyes, she often feels lightheaded when she ventures outside. She limps and has chronic pain in her lungs, as well as rashes that have lingered for a year. Once, a visit to the barn ended with respiratory distress and a trip to the emergency room. Schilke also has back pain linked with overworked kidneys, and on some mornings she urinates a stream of blood.
Ambient air testing by a certified environmental consultant detected elevated levels of benzene, methane, chloroform, butane, propane, toluene and xylene—compounds associated with drilling and fracking, and also with cancers, birth defects and organ damage. Her well tested high for sulfates, chromium, chloride and strontium; her blood tested positive for acetone, plus the heavy metals arsenic (linked with skin lesions, cancers and cardiovascular disease) and germanium (linked with muscle weakness and skin rashes). Both she and her husband, who works in oilfield services, have recently lost crowns and fillings from their teeth; tooth loss is associated with radiation poisoning and high selenium levels, also found in the Schilkes’ water.
State health and agriculture officials acknowledged Schilke’s air and water tests but told her she had nothing to worry about. Her doctors, however, diagnosed her with neurotoxic damage and constricted airways. “I realized that this place is killing me and my cattle,” Schilke says. She began using inhalers and a nebulizer, switched to bottled water, and quit eating her own beef and the vegetables from her garden. (Schilke sells her cattle only to buyers who will finish raising them outside the shale area, where she presumes that any chemical contamination will clear after a few months.) “My health improved,” Schilke says, “but I thought, ‘Oh my God, what are we doing to this land?’”
Schilke’s story reminds us that farmers need clean water, clean air and clean soil to produce healthful food. But as the largest private landholders in shale areas across the nation, farmers are disproportionately being approached by energy companies eager to extract oil and gas from beneath their properties. Already, some are regretting it.
Earlier this year, Michelle Bamberger, an Ithaca veterinarian, and Robert Oswald, a professor of molecular medicine at Cornell’s College of Veterinary Medicine, published the first (and, so far, only) peer-reviewed report to suggest a link between fracking and illness in food animals. The authors compiled case studies of twenty-four farmers in six shale-gas states whose livestock experienced neurological, reproductive and acute gastrointestinal problems. Exposed either accidentally or incidentally to fracking chemicals in the water or air, scores of animals have died. The death toll is insignificant when measured against the nation’s livestock population (some 97 million beef cattle go to market each year), but environmental advocates believe these animals constitute an early warning.
Exposed animals “are making their way into the food system, and it’s very worrisome to us,” Bamberger says. “They live in areas that have tested positive for air, water and soil contamination. Some of these chemicals could appear in milk and meat products made from these animals.”
In Louisiana, seventeen cows died after an hour’s exposure to spilled fracking fluid. (Most likely cause of death: respiratory failure.) In north central Pennsylvania, 140 cattle were exposed to fracking wastewater when an impoundment was breached. Approximately seventy cows died; the remainder produced eleven calves, of which only three survived. In western Pennsylvania, an overflowing waste pit sent fracking chemicals into a pond and a pasture where pregnant cows grazed: half their calves were born dead. The following year’s animal births were sexually skewed, with ten females and two males, instead of the usual 50-50 or 60-40 split.
In addition to the cases documented by Bamberger, hair testing of sick cattle that grazed around well pads in New Mexico found petroleum residues in fifty-four of fifty-six animals. In North Dakota, wind-borne fly ash, which is used to solidify the waste from drilling holes and contains heavy metals, settled over a farm: one cow, which either inhaled or ingested the caustic dust, died, and a stock pond was contaminated with arsenic at double the accepted level for drinking water.
Cattle that die on the farm don’t make it into the nation’s food system. (Though they’re often rendered to make animal feed for chickens and pigs—yet another cause for concern.) But herd mates that appear healthy, despite being exposed to the same compounds, do: farmers aren’t required to prove their livestock are free of fracking contaminants before middlemen purchase them. Bamberger and Oswald consider these animals sentinels for human health. “They’re outdoors all day long, so they’re constantly exposed to air, soil and groundwater, with no break to go to work or the supermarket,” Bamberger says. “And they have more frequent reproductive cycles, so we can see toxic effects much sooner than with humans.”
Fracking a single well requires up to 7 million gallons of water, plus an additional 400,000 gallons of additives, including lubricants, biocides, scale and rust inhibitors, solvents, foaming and defoaming agents, emulsifiers and de-emulsifiers, stabilizers and breakers. About 70 percent of the liquid that goes down a borehole eventually comes up—now further tainted with such deep-earth compounds as sodium, chloride, bromide, arsenic, barium, uranium, radium and radon. (These substances occur naturally, but many of them can cause illness if ingested or inhaled over time.) This super-salty “produced” water, or brine, can be stored on-site for reuse. Depending on state regulations, it can also be held in plastic-lined pits until it evaporates, is injected back into the earth, or gets hauled to municipal wastewater treatment plants, which aren’t designed to neutralize or sequester fracking chemicals (in other words, they’re discharged with effluent into nearby streams).
At almost every stage of developing and operating an oil or gas well, chemicals and compounds can be introduced into the environment. Radioactive material above background levels has been detected in air, soil and water at or near gas-drilling sites. Volatile organic compounds—including benzene, toluene, ethylene and xylene—waft from flares, engines, compressors, pipelines, flanges, open tanks, spills and ponds. (The good news: VOCs don’t accumulate in animals or plants. The bad news: inhalation exposure is linked to cancer and organ damage.)
Underground, petrochemicals can migrate along fissures through abandoned or orphaned wells or leaky well casings (the oil and gas industry estimates that 60 percent of wells will leak over a thirty-year period). Brine can spill from holding ponds or pipelines. It can be spread, legally in some places, on roadways to control dust and melt ice. Truck drivers have also been known to illegally dump this liquid in creeks or fields, where animals can drink it or lick it from their fur.
Although energy companies don’t make a habit of telling potential lease signers about the environmental risks they might face, the Securities and Exchange Commission requires them to inform potential investors. In a 2008 filing, Cabot Industries cited “well site blowouts, cratering and explosions; equipment failures; uncontrolled flows of natural gas, oil or well fluids; fires; formations with abnormal pressures; pollution and other environmental risks.” In 2011, oil companies in North Dakota reported more than 1,000 accidental releases of oil, drilling wastewater or other fluids, with many more releases likely unreported. Between 2008 and 2011, drilling companies in Pennsylvania reported 2,392 violations of law that posed a direct threat to the environment and safety of communities.
Read more here.