An Interview with Senior Wastewater Treatment Plant Engineer, Alan Johnston Through thoughtful planning and follow-through, the City of Gresham, Oregon was the first city in the Pacific Northwest to operate an Energy Net Zero Waste Water Treatment Plant. This plant generates enough energy on site to meet its demand for electricity to run the plant. In fact, it often generates more energy than it needs. The City of Gresham’s Business Sustainability Coordinator, Gregg Hay