First Truckloads of MWRD Biosolids Delivered to Chicago Park

With improved soil quality, turf grass at Maggie Daley Park will be healthier and more durable

MWRD Biosolids Maggie Daley Park Chicago

Metropolitan Water Reclamation District of Greater Chicago (MWRD) Commissioners were on hand as the first truckloads of MWRD biosolids were delivered to the future Maggie Daley Park in downtown Chicago recently.

Biosolids are the nutrient-rich, organic material developed through the extensive wastewater treatment process. They are a superior, yet less expensive alternative to chemical fertilizers. They are used in landscaping and for fertilizing turf grass at parks and athletic fields and row crops in farmers’ fields.

Chicagoland soil can be too compacted for good root development, and it can lack the vital nutrients and organic matter that plants need to thrive. Heavy summer rains can wash fertilizers away, and long dry spells can leave grass parched. Using biosolids can help create a beautiful landscape.

With improved soil quality, turf grass at the park will be healthier, more durable and will require less maintenance. Biosolids provide nutrients but also improve soil structure, help retain moisture and prevent erosion. MWRD biosolids will be mixed with soil to improve the quality of the fields at Maggie Daley Park.

Maggie Daley Park’s total acreage is 25.2 acres, of which 16.9 acres will serve as a green roof to parking facilities. This will be the second largest green roof in the country, with the 24.5 acres of Millennium Park the largest. The park will provide 85,580 cu ft of detention volume storage across the green roof site and another 19,863 cu ft of detention volume storage in the area known as Peanut Park.


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