Well Grout

Contamination can enter wells in confined aquifers with bentonite-packed annular spaces through wells with gravel-packed annular spaces. This is a serious threat to public health. This educational model uses colored dye to demonstrate scenarios in which gravel-packed wells in confined aquifers allow contamination to reach bentonite-packed wells in the same aquifer. This model was developed by the University of Nebraska-Lincoln and Nebraska Department of Health and Human Services. See a slide show of the model in use.

Manuals

The model was designed as part of a team project. Below is information on the use and construction of the model.

We do not make or sell these models. We provide you with instructions and directions to construct and operate your own model for educational purposes.

Well Grout Model Operation and Maintenance Manual
Well Grout Model Construction Manual
Well Grout Model Parts List

All documents are in pdf format and will open in a new window. (Free Acrobat Reader needed to view.)

Educational Narrated Slide Show

Well Grout Model Educational Narrated Slide Show

Educational Decommissioned Well Model

Contamination can enter wells in confined aquifers through wells that were decommissiioned without addressing the annular spaces.  An educational model was developed by the University of Nebraska-Lincoln and Nebraska Department of Health and Human Services to illustrate this potential risk. Colored dye is used to demonstrate a scenario in which wells that were decommissioned without addressing the well annulus allow contamination to reach active wells in the same confined aquifer. 

Educational Narrated Slide Show

Well Decommissioning Model Educational Narrated Slide Show

Educational Video

Nebraska Grout Task Force Study: Active and Decommissioned Well Model Educational Video

Please direct any questions to:
Dr. Bruce Dvorak
University of Nebraska-Lincoln
Biological Systems Engineering Department
234 L. W. Chase Hall
Lincoln, NE 68583-0726
(402) 472-3431
FAX: (402) 472-6338