Assessments of Aquifer Sensitivity on Navajo Nation and Adjacent Lands and Ground-Water Vulnerability to Pesticide Contamination on the Navajo Indian Irrigation Project, Arizona, New Mexico, and Utah

Author Name: 
Blanchard, P. J.
Publication Date: 
Friday, February 1, 2002
Private File Attachment: 
Description: 
The U.S. Environmental Protection Agency requested that the Navajo Nation conduct an assessment of aquifer sensitivity on Navajo Nation lands and an assessment of ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project. (from abstract) The U.S. Environmental Protection Agency (USEPA) requested that the Navajo Nation conduct assessments of aquifer sensitivity on Navajo Nation lands and ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project (NIIP). The results of these assessments are necessary in order for the Navajo Nation to develop a Pesticide Management Plan as required by the USEPA. Aquifer sensitivity is defined by the USEPA as "The relative ease with which a contaminant [pesticide] applied on or near a land surface can migrate to the aquifer of interest. (from introduction) Results are included to show vulnerabilities in the Navajo aquifer. (ed.)