Groundwater Contamination

January 28, 2015--Natural breakdown of petroleum may lace arsenic into groundwater (Environmental News Network)

In a long-term field study, U.S. Geological Survey (USGS) and Virginia Tech scientists have found that changes in geochemistry from the natural breakdown of petroleum hydrocarbons underground can promote the chemical release (mobilization) of naturally occurring arsenic into groundwater.

June 7, 2013--NM regulators replace rule on drilling waste (Denver Post)

New Mexico is changing its regulations on managing waste from oil and gas drilling. A 51-page order issued Thursday by the state Oil Conservation Commission makes numerous changes to the so-called "pit rule," which industry groups called too expensive and cumbersome. The regulations were adopted in 2009. They're intended to prevent drilling waste from leaching into groundwater.

February 1, 2013--Who is writing New Mexico's water regulations? (High Country News)

The Chino copper mine near Silver City, New Mexico is one of the longest-operating mines in the West. The mine’s current owner, Freeport-McMoRan, just started mining there again in 2011 and the company is on the hook to restore thousands of acres of heavy metal-contaminated groundwater.

January 8, 2013--Colorado oil and gas regulators approve groundwater testing requirement (Coloradoan)

Oil and gas companies will be required to test the groundwater around new drilling operations in Colorado beginning May 1. The Colorado Oil and Gas Conservation Commission on Monday approved new rules requiring energy companies to test up to four domestic water wells within a half-mile radius of all new oil and gas wells both before and after drilling begins.

November 14, 2012--Fort Collins asks state for strict groundwater testing near new oil, gas wells (Coloradoan)

On what Colorado chief oil regulator Matt Lepore called an “auspicious day,” the state began hearings Wednesday on a proposal to make the state the first in the nation to require groundwater testing before and after all new oil and gas drilling operations.

November 8, 2012--Clean-up of some U.S. contaminated groundwater sites unlikely for decades (Science Daily)

At least 126,000 sites across the U.S. have contaminated groundwater that requires remediation, and about 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations, says a new report from the National Research Council.

March 14, 2012--Groundwater nitrate contamination grows in California farm areas (Los Angeles Times)

Nitrate contamination of groundwater in some of the state's most intensely farmed regions has grown worse in recent decades and will continue to spread, threatening the drinking water supplies of more than 250,000 people, according to a new study.

December 13, 2011--Colorado approves nation's most comprehensive frack fluid disclosure rule (Denver Post)

Colorado today adopted the nation's toughest rule requiring oil and gas drillers to disclose all the chemicals used in the fracking fluids they pump down well

October 17, 2011--Colorado oil, gas companies to launch groundwater monitoring program (Coloradoan)

Colorado oil and gas companies are preparing to launch one of the nation’s first statewide voluntary groundwater monitoring programs. The industry is hoping that the tests beginning Nov. 1 will show the public that oil and gas operations don’t pollute groundwater.

July 30, 2011--California sets goal for limiting drinking water pollutant (Los Angeles Times)

The California Environmental Protection Agency has issued the nation's first public health goal for hexavalent chromium, the cancer-causing heavy metal made infamous after activist Erin Brockovich sued in 1993 over contaminated groundwater in the Mojave Desert town of Hinkley, about 100 miles northeast of Los Angeles.

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