Applicator's Map and Guide to Prevent Groundwater Contamination

Relative Groundwater Leaching Potential

legend

UNL Conservation and Survey Division. 1999. Pesticides and Groundwater: An Applicator's Map and Guide to Prevent Groundwater Contamination.

These “county guides” are free publications available in PDF for ALL counties. To view the PDFs, click on the map above or select from the list below. Questions? Contact the NDA pesticide program at 402-471-2351 or by email at agr.webmaster@nebraska.gov.

Knowing the relative leaching potential of your application area is just one piece of information to reduce pesticides from contaminating groundwater. Knowing your pesticide’s tendency to leach is another. Most pesticides have been categorized by relative risk ratings, and combining this with the site’s risk rating can help you select products that are less likely to move below the root zone. The following links are helpful in this regard:

Guide to Weed, Disease, and Insect Management in Nebraska - see the Environmental Considerations section; specifically, the Potential Human Exposure and Environmental Risks of Herbicides and Potential Human Exposure and Environmental Risks of Insecticides tables.
USDA Windows Pesticide Screening Tool (Win-PST) – this free software combines soil survey information with pesticide properties and application methods into an overall risk rating. All active ingredients are included.

To view the "county guide" PDFs, click on the map above or select from the list below.