Science & Technology

WhAEM2000 BBM Files - Bradshaw Mountains, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Bradshaw Mountains Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Boulder City, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Boulder City Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Blythe, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Blythe Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Bagdad, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Bagdad Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Atascosa Mountains, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Atascosa Mountains Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Alamo Lake, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Alamo Lake Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Ajo, Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Ajo Quadrangle, Arizona. Files serve as geographic basis for groundwater modeling.

WhAEM BBM Files - Arizona

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for quadrangles in Arizona. Files serve as geographic basis for groundwater modeling.

Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.7

the document for Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.7, December 2018

Level III and IV Ecoregions by EPA Region

Information and downloadable maps and datasets for Level III and IV ecoregions, listed by EPA region. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources.

Pesticide General Permit Electronic Reporting

The EPA’s eNOI system is a free online service. Pesticide decision-makers should use the system to submit an NOI, Annual Report or Notice of Termination (NOT) for pesticide discharges under EPA’s 2016 PGP.