Long-Term Effects of Land Application of Domestic Wastewater; Mesa, Arizona: Irrigation Site

摘要

This report presents the results of an assessment of the long-term impacts on crops, soils, and groundwater resulting from irrigation with secondary-treated municipal effluent. The concentrations of pathogens, nutrients, heavy metals, and salts in soils, groundwater, and crops irrigated with secondary-treated wastewater were compared to the concentrations in soils, groundwater, and crops irrigated with conventional water supplies. Test and control sites at Mesa, Arizona, were selected as case studies for comparisons.