Scientific Investigations Report 2007–5237
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5237
Figure 18. Simulated equilibrium ground-water nitrate concentrations near the water table for 20 milligrams N per liter advanced treatment on-site wastewater systems (scenario 3, table 6) in the La Pine, Oregon, study area. (Colors indicate maximum nitrate concentration in vertical dimension.)