Calgary is the largest city in the western Canadian province of Alberta, about 230 miles north of the U.S. border with Montana. Fish Creek Wastewater Treatment Plant is the smallest of three wastewater treatment plants in the metro area of about 1.4 million people.For 40 years, citizens in surrounding neighborhoods have complained of odors they believed to be coming from the plant. City managers weren’t convinced the plant was the actual source of the odor, which they believed to be caused by H2S. For years, they had tried to discern where the undeniable miasma was coming from, with frustrating results.They
