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Report - Metropolitan Water Reclamation District of Greater Chicago

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iosolids users under the <strong>District</strong>'s Controlled Solids Distribution Program. Biosolids marketing<br />

activities include preparation <strong>of</strong> promotional documents, showcasing the <strong>District</strong>'s biosolids<br />

management program at local trade shows and conferences, and presentations to potential<br />

biosolids users. In 2010, the Section conducted one exhibition and one field day to promote<br />

beneficial use <strong>of</strong> the <strong>District</strong>'s biosolids. During the year, biosolids and technical support were<br />

provided to a total <strong>of</strong> 43 users consisting <strong>of</strong> 17 new and 26 returning users. These users include,<br />

park districts, villages, golf courses, landscapers, and schools.<br />

The Section also maintains continuous demonstrations <strong>of</strong> turf grasses, prairie grasses,<br />

forage grasses, and wild flowers in a greenhouse at the Lue-Hing R&D Complex. During 2010,<br />

there were numerous tours <strong>of</strong> the greenhouses.<br />

Applied Research on the Benefits and Safety <strong>of</strong> Biosolids Land Application. The<br />

research and demonstration component <strong>of</strong> the program is aimed to support the local marketing <strong>of</strong><br />

biosolids. Research consists <strong>of</strong> studies conducted in collaboration with universities and the IEP A<br />

to demonstrate that land application <strong>of</strong> biosolids according to the USEP A Part 503 Rule is<br />

beneficial and provides protection to human health and the environment. Thesestudies include:<br />

Corn Fertility Experiment on Calcareous Mine Spoil. Since 1973, the <strong>District</strong> has been<br />

conducting a com fertility experiment on calcareous mine spoil at the Fulton County site. The<br />

purpose <strong>of</strong> this experiment is to evaluate the effect <strong>of</strong> long-term applications <strong>of</strong> anaerobically<br />

digested biosolids on crop yields, crop chemical composition, and mine spoil chemical<br />

composition. This is the longest running continuous biosolids research experiment in the<br />

country. The experiment was designed to simulate biosolids application to fields at the site at<br />

agronomic and reclamation rates, and to provide information that can be used for management <strong>of</strong><br />

biosolids and crops.<br />

Biosolids Phosphorus Studies. Many states are implementing regulations to minimize<br />

phosphorus contamination <strong>of</strong> water bodies due to run<strong>of</strong>f from land application <strong>of</strong>biosolids. This<br />

project was started in 2003 in collaboration with the IEP A and University <strong>of</strong> Florida to address<br />

the potential for environmental impacts associated with the application <strong>of</strong> <strong>District</strong> biosolids to<br />

cropland and to minimize the impact <strong>of</strong> future biosolids P regulations on <strong>District</strong> operations. The<br />

project included greenhouse and field studies to evaluate plant availability <strong>of</strong> biosolids, and<br />

laboratory and field studies to evaluate potential for phosphorus run<strong>of</strong>f from farm fields on<br />

which <strong>District</strong> biosolids are applied. The studies were completed in 2010. Journal articles and a<br />

white paper assessing the potential impact <strong>of</strong> biosolids phosphorus regulations on the <strong>District</strong>'s<br />

biosolids farmland application program are being prepared.<br />

Farmland Application <strong>of</strong> Class B Biosolids Project. The practice <strong>of</strong> Class B biosolids<br />

application to farmland has met with public concern and opposition in some regions <strong>of</strong> the<br />

United States. Most <strong>of</strong> the concerns stem from misinformation about the potential human health<br />

and environmental risks from pathogens and trace metals in the Class B biosolids applied to<br />

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