Bill Yackley, an operator at the El Dorado Hills wastewater treatment plant, stands near purple pipes used in a multi-part recycling process April 10, 2014.
Bill Yackley, an operator at the El Dorado Hills wastewater treatment plant, stands near purple pipes used in a multi-part recycling process April 10, 2014. Lezlie Sterling Sacramento Bee file
Bill Yackley, an operator at the El Dorado Hills wastewater treatment plant, stands near purple pipes used in a multi-part recycling process April 10, 2014. Lezlie Sterling Sacramento Bee file