Lindsay Light Streeterville Thorium Monitoring Area MapYou may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
Lindsay Light Streeterville Thorium Monitoring Area map (PDF)(1 pg, 2 MB,
The Thorium Monitoring Area encompasses all buildings and rights-of-ways within the three areas depicted north and south of the Chicago River. Where a boundary line runs along a street, thorium monitoring is required within the boundary line for both the properties and any sidewalks adjacent to the monitored properties.