The fracking revolution is having a ripple effect throughout the U.S. economy. That applies to both the natural gas boom in states like Ohio and the oil gas boom in North Dakota. BusinessWeek notes the impact the oil boom is having on local banks.

In his office on the second floor of a glass-encased building on North Main Street in Watford City, N.D., Stephen Stenehjem rolls out a map of a proposed multimillion-dollar residential development and shakes his head in disbelief. “My dad would have been very pleased,” says Stenehjem, a third-generation banker and the chief executive officer of First International Bank & Trust. “For 25 years, our focus as a community bank was to help keep our small town alive. So it has been really fun to see this oil come back.”

Once a depressed town of 1,700 in what was America’s least-visited state, Watford City and its neighbors are at the center of North Dakota’s oil and gas boom. While about 470 banks across the U.S. have folded in the past five years, those serving America’s new fracking economy have seen explosive growth. Oilfield workers carrying paychecks, investors looking to build, and farmers enjoying mineral-rights payments are pouring money into banks. First International, with $1.3 billion in assets and 21 branches in North Dakota, Arizona, and Minnesota, hired 65 employees over the past year, including lenders, trust officers, and insurance agents, and plans to add 30 more this year. “It’s fun to be a banker in North Dakota,” Stenehjem says. “Even six or seven years ago, if there was a new pole barn going up in the county, I knew about it. Now I can’t keep track of everything.”

The implications for the U.S. economy are staggering. It’s great to hear good news and we’ll be following this story.

With the fracking boom, we’re seeing an explosion of related industries as well. One issue relating to hydraulic fracking has to do with the massive amounts of water used in the process. The water gets contaminated, and then it has to be dealt with. This is even bigger than the problem of potential ground water contamination.

Start-ups, venture capitalists and large companies, including Veolia and Siemens, see riches in water cleanup and are developing and testing various technologies. They are also working in other areas besides shale gas, including Canada’s oil sands and the use of water to pressure oil out of wells.

One of these companies is Ecosphere Technologies of Stuart, Florida, which uses ozone as a disinfectant to clean water in a process called advanced oxidation. The treatment, which does not use chemicals, can both eliminate the chemicals typically used for bacteria control and scale inhibition during fracking and recycle 100 percent of the water, according to Charles Vinick, the company’s chief executive.

Ecosphere says it has cleaned more than two billion gallons of water and eliminated the need for more than 1.7 million gallons of chemicals at approximately 600 oil and natural gas wells in U.S. shale fields since 2008.

The developments are very encouraging, both from an economic point of view and an environmental point of view, and this should help the overall fracking business which has been an economic boom for the US.