This interactive map depicts the locations where we have historical measurements of nitrate and other agrichemicals core samples collected from the vadose zone in Nebraska. The vadose zone is the interval between the crop rooting zone and the water table and is critically important region for storage, transport and transformation of chemicals that can impact groundwater quality. To examine data from a specific core location, zoom to the location of interest and click on the corresponding dot. A popup with relevant information and links to data will appear. You may also search by entering county, latitude and longitude, legal description, Natural Resource District, coring year or core ID in the Search box.
For more information go to the Nebraska Water Center's Water Sciences Laboratory website on the vadose zone.