About Clean Earth Technologies Clean Earth Technology, Inc. was founded in 1990 by Dave and Carol Bowles, the owners of Bowles Corporation, an OEM manufacturing firm incorporated in 1983. Both Dave and Carol are engineers who worked at a nearby aerospace firm before starting their own company and were familiar with NASA spacecraft fuel gauging technology. The interface sensors used in Clean Earth Technology’s equipment are a unique spin-off of this technology, setting it in a league of its own in the environmental industry. Since then, our systems have been hard at work, successfully restoring thousands of underground aquifers all over the world. Clean Earth Technology is located in North Ferrisburgh, in the heart of the “Green Valley of Vermont.” We’re proud to be an active participant in the Vermont tradition of caring for the precious natural resources of this planet we all share.