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Open-File Report 2006-1286

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Application of Municipal Biosolids to Dry-Land Wheat Fields – A Monitoring Program near Deer Trail, Colorado (USA)

A presentation for an international conference: “The Future of Agriculture: Science, Stewardship, and Sustainability”, August 7–9, 2006, Sacramento, CA

By James G. Crock, David B. Smith, and Tracy J.B. Yager

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Abstract

Since late 1993, Metro Wastewater Reclamation District of Denver (Metro District), a large wastewater treatment plant in Denver, Colorado, has applied Grade I, Class B biosolids to about 52,000 acres of non-irrigated farmland and rangeland near Deer Trail, Colorado. In cooperation with the Metro District in 1993, the U.S. Geological Survey (USGS) began monitoring ground water at part of this site. In 1999, the USGS began a more comprehensive study of the entire site to address stakeholder concerns about the chemical effects of biosolids applications. This more comprehensive monitoring program has recently been extended through 2010. Monitoring components of the more comprehensive study included biosolids collected at the wastewater treatment plant, soil, crops, dust, alluvial and bedrock ground water, and stream bed sediment. Streams at the site are dry most of the year, so samples of...>>MORE

Version 1.0

Posted October 2006

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