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Dredged Materials Management -Minnesota Pollution Control Agency Page 1 of 10 <br />Minnesota Pollution Control Agency <br />Home ~ Site Index ~ Glossary ~ What's New ~ Ask MPCA ~ Visitor Center Search <br />MPCA Home > Water > Dredged Materials Management <br />Related Pages: <br />Dredged Materials Management <br />Water Permits <br />Contaminated <br />Sediments <br />This Web page and accompanying material is considered to be a General Information <br /> "working draft," and is still under development. <br /> What Ana~ysis is <br />Environme_ntalReview Required . <br />Proara_m This Web page is intended to help you determine what type(s) <br /> of regulatory oversight and/or permit is required at projects and Do I Need a Permit for <br />Water sites involving the removal and management (storage, my Site or Project? <br /> treatment, disposal and/or reuse) of dredged materials, once <br />401 Certification excavated, as well as what is required for discharges from the Management of Dredged <br /> project site and/or management control site(s), including storm Material <br /> water. Issues related to the dredging activity itself are <br /> addressed by other regulatory entities (see Other Environmental Dredged Material <br />This Web site contains PDF Management Forms <br />documents that require Adobe Issues section of this Web site) and is not the focus of this Web <br />Acrobat for viewing, <br /> site. Other Environmental <br /> Issues <br /> General Information <br /> General Permit <br /> What is Dredged Material? Information <br />Who to Call <br />Dredged material includes material that is excavated at or below <br />the Ordinary High Water Level (OHWL) of waterbasins, <br />watercourses, public waters, or public waters wetlands, as defined by Minn. Stat. <br />lO5G.005. Examples of dredged material include sediment from the navigational dredging <br />for shipping cargo and freight in Minnesota's commercial ports, including material from the <br />dredging in the main navigational channel as well as from the main navigational channel to <br />a particular commercial shipping dock within the commercial port; and, dredge projects that <br />require the removal of sediment from Minnesota waters at marinas and recreational boating <br />areas. <br />Environmental Considerations <br />Dredged material has the potential to impact the environment. Carriage water and <br />hydrostatic water from hydraulic or mechanical dredging processes, as well as storm water <br />runoff from dredged material management, transfer and off-loading sites, has the potential <br />to pollute surface water when discharged to waters of the state. The management of <br />dredged material also has the potential to affect ground water through on-land management <br />methods, if not managed in consideration of environmental risk factors. <br />Depending on the specifics at the project site, including the type of dredging operation, <br />where the project is located, and the pollutant level present in the dredged material will <br />determine how the project is regulated by the MPCA. <br />Note: The MPCA does not authorize or otherwise regulate the actual dredging activity. <br />However, dredging activity is subject to the water quality standards specified in Minnesota <br />http://www.pca.state.mn.us/water/dredgedmaterials.html 11/20/2008 <br />