Percentage of probability of nonpoint-source nitrate contamination of recently recharged ground water in the High Plains aquifer
This raster data set represents the percentage of probability of nonpoint-source nitrate contamination 
(greater than the proposed background concentration of 4 milligrams per liter (mg/L) as N) of recently 
(defined as less than 50 years) recharged ground water in the High Plains aquifer of the United States. 
The …