The Department of Environment and Sustainability operates an air-monitoring network for particulate matters (less than 2.5 micrometer in diameter...

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UPDATE: Per the Cook County Board President’s...

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UPDATE: Per the Cook County Board President’s...

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What is a Brownfield? 

Brownfields are abandoned or under-used industrial and commercial properties with actual or perceived...

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UPDATE: Per the Cook County Board President’s...

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The Cook County Community Solar Project was launched in early 2015 with a grant from the Department of Energy’s Solar Market Pathways Program....

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UPDATE: Per the Cook County Board President’s...

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UPDATE: Per the Cook County Board President’s...

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UPDATE: Per the Cook County Board President’s...

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The Green Buildings Program looks holistically at the design, space utilization, operations and life cycle impact of County owned properties to...

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UPDATE: Per the Cook County Board President’s ...

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National Pollutant Discharge Elimination System (NPDES)

The National Pollutant Discharge Elimination System (NPDES) is a...

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During the COVID-19 response, the department will not be issuing new open burn permits.  The department is taking this action to conserve first...

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Radon is a naturally occurring radioactive gas released in rock, soil, and water from the natural decay of uranium. While levels in outdoor air...

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UPDATE: Per the Cook County Board President’s...

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Cook County should be a world-class model of sustainability. We are working not only to boost sustainability practices throughout County...

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Quentin Road Phase 1 Study

Dundee Road to Lake Cook Road...

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The Illinois Solid Waste Planning and Recycling Act (415 ILCS 15/) requires counties to develop an initial solid waste management plan and...

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