Data and Tools

WhAEM2000 BBM Files - Hope, Arkansas

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

WhAEM2000 BBM Files - Helena, Arkansas

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

WhAEM2000 BBM Files - Harrison, Arkansas

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

WhAEM2000 BBM Files - Greenwood, Arkansas

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

WhAEM2000 BBM Files - Fort Smith, Arkansas

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

WhAEM2000 BBM Files - Fly Gap Mountain, Arkansas

WhAEM2000 (Wellhead Analytic Element Model) binary base map browser for Fly Gap Mountain Quadrangle, Arkansas. Files serve as geographic basis for groundwater modeling.

WhAEM2000 BBM Files - Fayetteville, Arkansas

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

WhAEM2000 BBM Files - El Dorado, Arkansas

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

WhAEM2000 BBM Files - Dumas, Arkansas

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

WhAEM2000 BBM Files - De Witt, Arkansas

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

WhAEM2000 BBM Files - De Queen, Arkansas

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

WhAEM2000 BBM Files - Crossett, Arkansas

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

WhAEM2000 BBM Files - Conway, Arkansas

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

WhAEM2000 BBM Files - Clarksdale, Arkansas

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

WhAEM2000 BBM Files - Cherokee Village, Arkansas

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

WhAEM2000 BBM Files - Camden, Arkansas

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

STOrage and RETrieval and Water Quality Exchange Listserv

Page describing the STORET and WQX listserv and how to use it.

Hazardous Waste Permitting in Your State

Map linking to US state hazardous waste permit websites.

Collaborating with our State Partners on Disaster Resiliency Planning Webinar Archive

This webinar, presented on November 19, 2025, showcased collaborative projects from our Memorandum of Agreement with the Environmental Council of the States (ECOS) and the Association of Territorial Health Officials (ASTHO).

Coal Combustion Residuals (CCR) Part A Implementation

The CCR Part A Final Rule, published August 28, 2020, grants facilities the option to submit a demonstration to EPA for an extension to the deadline for unlined CCR surface impoundments to stop receiving waste. Facilities have until November 30, 2020