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The EPA is re-issuing a stormwater Construction General Permit that expired July 1, 2008, for a two-year time period. The permit will apply only where EPA is the permitting authority, in Massachusetts, New Hampshire, New Mexico, Idaho, Alaska, Washington, D.C.; most territories; and most Indian country lands.
The CGP regulates the discharge of stormwater from construction sites that disturb one acre or more of land, and from smaller sites that are part of a larger, common plan of development. The permit requires operators of the construction sites to use stormwater controls and develop stormwater pollution prevention plans to minimize the discharge of sediment and other pollutants associated with construction sites in stormwater runoff.
Sites that have coverage under the 2003 CGP must continue to comply with the provisions of that permit and do not need to apply for coverage under this new permit.
The permit uses most of the same terms and conditions as EPA?EUR??,,????'?????<???EUR?s 2003 permit. EPA is coordinating the permit with a second effort that is underway to establish national clean water standards, known as an effluent limitation guideline, for the construction and development industry. Upon finalization of the guideline, EPA plans to include its provisions into a new and improved five-year CGP to be reissued no later than July 2010.
For more information on the Construction General Permit: https://www.epa.gov/npdes/stormwater/cgp
Francisco Uviña, University of New Mexico
Hardscape Oasis in Litchfield Park
Ash Nochian, Ph.D. Landscape Architect
November 12th, 2025
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