Quality-Assessed Agrichemical Contaminant Database for Nebraska Ground Water

Please refer to the metadata, which describes how the data were obtained, compiled, and ranked.

Selected Reports and Publications Prepared Using the Agrichemical Contaminant Database

Metadata file in PDF format can be viewed with Adobe Acrobat Reader.  acrobat

The suggested citation for referencing this source is: "University of Nebraska-Lincoln. 2000. Quality-assessed Agrichemical Contaminant Database for Nebraska Ground Water.
A cooperative project of the Nebraska Departments of Agriculture, Environmental Quality, and Natural Resources and the University of Nebraska - Lincoln.
On-line at clearinghouse.nebraska.gov updated September/30/2019."

We invite you to send comments or suggestions about this website to

If you would prefer, you may retrieve the entire Clearinghouse Database.
It is a 12 MB Zipped Microsoft Access 2007 format.
Database last updated: September/30/2019

Criteria Screening Check Plot Use this tool to develop a query and view the spatial distribution of wells meeting the selected criteria:


Fill out the following form to specify your search criteria and then press the Submit button. All data meeting the search criteria will be listed (when the search is complete).

Proceed to obtain location, pedigree, and analytical data for each well meeting the criteria selected in #1–9.

1. Select Search Criteria:

2. Select the Analyte(s) from the following list: The pesticide analytes are listed by chemical ingredient (e.g., atrazine, 2,4-D, acetochlor). If you know only the trade name (e.g., Roundup, Harness, Bladex**), please exit to the National Pesticide Information Retrieval System to find the chemical ingredient.

**Use of trade names on this site is for example only and does not constitute an endorsement.

To learn more about drinking water standards and regulations for these compounds, exit to the USEPA's Drinking Water Health Advisories website.

Select Analyte(s) : Number of Analyses - 460405
(Number) = number of analyses in database.

(Use CTRL or SHIFT and Left Mouse button to select multiple list items)

Additional pesticide data are available at Pesticide Data Using Enzyme-Linked Immunosorbent Assay ELISA for Nebraska Ground Water.

3. Clearinghouse Quality Flag:(To learn more about how these data are ranked, refer to Tables 1 and 2 in the metadata link at the top of this page)
(Use CTRL or SHIFT and Left Mouse button to select multiple items or deselect items. )

4. Sample Data (as m/d/yyyy - Default is full period):

5. Well Depth (Default is all records):

6. Select the Well Type from the following list:
   (Use CTRL or SHIFT and Left Mouse button to select multiple list items)

Select Well Use

7. Select the projection (if you want to use the data in a GIS system).

8. Output Format: 

9. Sorted By:NRD,County,Legal Description,Clearinghouse #.
    User Optional Sort Choices.