Public Notices

A public notice is the primary method for advising all interested parties of a proposed activity for which a permit is sought. Soliciting comments and information necessary to evaluate the probable impacts on the public interest. Public notices are also published to inform the public about new or proposed regulations, policies, guidance or permit procedures.  

Public Notices published by the Los Angeles District are posted on these three pages. There are two types of Public Notices; Regulatory and Project Public Notices. Comments are due by the expiration date of the public notice. 

Only comments submitted by email or in hard copy format through a delivery service, such as the U.S. Postal Service, can be accepted.   Comments must be submitted to the address listed in the public notice.

Public Notice Manager

SPL-2024-1028-Joint public notice: Notice of availability of the regional streamflow duration assessment methods for the Arid West, Western Mountains and Great Plains

USACE Regulatory
Published Oct. 28, 2024

These Regional SDAMs were developed for use in all or part of the states of Arizona, California, Colorado, Illinois, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, Utah, Wisconsin and Wyoming by the Corps and the EPA (Figure 1). These methods result from a literature review and multi-year field study conducted at nearly 700 stream reaches across the range of hydrologic landscapes of the Arid West, Western Mountains and Great Plains. Developed through statistical analyses of the field data, the Regional SDAMs provide a data-driven approach using reliable indicators to determine streamflow duration class at the reach scale. The agencies are making these final Regional SDAMs available for public use. This follows completion of a more than one-year preliminary implementation and comment period on beta methods to inform development of the final Regional SDAMs.