In this report, we have considered the methods and associated costs for reduction of nitrate leaching losses from the major anthropogenic sources of nitrate loading to groundwater in the two study regions. The sources considered here are irrigated cropland, livestock operations, turfgrass and other urban landscaping, effluent from municipal wastewater treatment plants and food processing plants, sewers, septic systems, and abandoned, dry, and active wells.

Website: https://ucanr.edu/sites/groundwaternitrate/files/139103.pdf