US Army Corps of Engineers
South Pacific Division Website

South Pacific Division News

Regulatory Public Notices

  • Notice of Availability of the Beta Streamflow Duration Assessment Method for the Arid West

    The U.S. Army Corps of Engineers (Corps), Sacramento, San Francisco, Los Angeles, and Albuquerque Districts (South Pacific Division), the Corps Omaha District, and the U.S. Environmental Protection Agency (EPA), Regions 6 , 8, and 9 jointly announce the availability of the Beta Streamflow Duration Assessment Method (SDAM) for the Arid West (dated February 2021). The method is a rapid assessment tool to help distinguish between ephemeral, intermittent, and perennial streamflow at the reach scale. The SDAM may help in providing technical guidance for identifying waters that may be subject to regulatory jurisdiction under the Clean Water Act; however, this method does not imply or represent a change in the definition of “Waters of the U.S.”

  • Final Regional Conditions Applicable to the 16 Nationwide Permits Published in the Federal Register on January 13, 2021

    On January 13, 2021, the U.S. Army Corps of Engineers (Corps) published a final rule in the Federal Register (86 FR 2744) announcing the reissuance of 12 existing nationwide permits (NWPs) and four new NWPs, as well as the reissuance of NWP general conditions and definitions with some modifications. These 16 NWPs will go into effect on March 15, 2021 and will expire on March 14, 2026. Each of the 4 Districts; Los Angeles (SPL), Sacramento (SPK), San Francisco (SPN), and Albuquerque (SPA), within the U.S. Army Corps of Engineers South Pacific Division (SPD) has developed regional conditions for those 16 NWPs.

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