Inland Sensitivity Atlas (ISA)

Willowbrook, IL - Region V


Site Contact:

Jon Gulch

600 Joliet Road
Suite N
Willowbrook, IL 60527

Latitude: 41.6400784
Longitude: -87.5830078

The Inland Sensitivity Atlas (ISA) is a Geographic Information System (GIS) application providing contingency planners and emergency responders with accurate and relevant information for spill preparedness and response. The Atlas contains environmental, oil, and Geographic Response Plan (GRP) information to support planning and response operations within the USEPA Region 5 jurisdictional area. All data within this project is also incorporated into each of the state government viewers as well.

During an emergency response, Federal and State On-Scene Coordinators (OSCs) may use the program to gain situational awareness of downstream/downwind vulnerabilities, as well as upstream/upwind potential responsible parties and much more. For contingency planning, the project can introduce facilities to the communities which may be impacted during a hazardous materials and/or petroleum releases.

To access this resource, please

Register Your Account Here First!

NOTE: If you have registered for any other sites on, skip to steps 2-3. If you have never accessed a resource on, you will be redirected to your profile page on your first login attempt. Simply go back in your browser and click the link again.

  • 1. After pressing the button on the previous page, go to your Inbox and check for an email message from to confirm your account by following the link provided in that message. You have 48 hours to do this!.
  • 2. Then, send an email message with your request to Jon Gulch ( and provide a description of why you want access to this resource, including your first name, last name, email address, organization, and phone number.
  • 3. Once you receive communication from Jon Gulch (, return to this Web page, and click the button below to open the map.



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