175 million gallons.

That’s the amount of wastewater spilled from 2009 to 2014 from leading oil- and gas-producing states, according to a new Associated Press data analysis.

The AP analysis excludes a key player, though. Although it’s the second-ranking gas producing state, Pennsylvania officials couldn’t provide comprehensive spill data to the news outlet.

The 21,651 spills analyzed from 11 other states included burst pipes, storage tanks that overflowed and illegal dumping. The numbers are likely incomplete because many spills go unreported.

Wastewater spills can be more damaging than oil spills, which often grab national headlines. And in seven of the 11 states the news outlet looked at the amount of wastewater spilled was double that of oil.

Spilled oil, however unsightly, over time is absorbed by minerals in the soil or degraded by microbes. Not so with the wastewater, also known as brine, produced water or saltwater. Unless thoroughly cleansed, a costly and time-consuming process, salt-saturated land dries up. Trees die. Crops cannot take root.

In addition to the extreme salinity, the fluids often contain heavy metals such as arsenic and mercury, plus radioactivity. Even smaller discharges affecting an acre or two gradually add up for landowners — “death by a thousand bee stings,” said Don Shriber of Farmington, New Mexico, a cattleman who wrangled with an oil company over damage.

The AP looked at data from Texas, North Dakota, California, Alaska, Colorado, New Mexico, Oklahoma, Wyoming, Kansas, Utah and Montana. Over the six-year period the amount of gallons spilled increased drastically as the fracking boom proliferated:

In 2009, there were 2,470 reported spills in the 11 states; by 2014, the total was 4,643. The amount of wastewater spilled doubled from 21.1 million gallons in 2009 to 43 million in 2013 before dipping to 33.5 million last year.

Texas, the leading oil- and gas-producing state in the nation, had the most spills at 4,783 and the most amount spilled, 62 million gallons.

How these spills have affected land and water overall is unknown because state and federal regulators “make no such assessments,” according to the article.

Pennsylvania has seen its fair share of spills and leaks from the gas industry throughout the fracking boom.

Last year, Range Resources, one of the major gas drillers in the state, was levied a hefty $4.15 million fine by state environmental regulators for leaks and various issues with impoundments they used over the years to store wastewater.

Reach Natasha Khan at 412-315-0261 or nkhan@rtvsrece.com. Follow her on Twitter @khantasha.

Know more than you did before? Support this work with a gift!

Readers tell us they can't find the information they get from our reporting anywhere else, and we're proud to provide this important service for our community. We work hard to produce accurate, timely, impactful journalism without paywalls that keeps our region informed and moving forward.

However, only about .1% of the people who read our stories contribute to our work financially. Our newsroom depends on the generosity of readers like yourself to make our high-quality local journalism possible, and the costs of the resources it takes to produce it have been rising, so each member means a lot to us.

Your donation to our nonprofit newsroom helps ensure everyone in Allegheny County can stay up-to-date about decisions and events that affect them. Please make your gift of support now.

Natasha is Rtvsrece's creative director. She runs the organizations visuals team, edits and produces interactive graphics, data visualizations and web packages for Rtvsrece. She manages the website...