Based on available information, I have preliminarily determined waters of the U.S. may be present in the approximate locations noted on the enclosed map on a portion of the Resolution Copper Mine project where a tailings storage facility and pipeline/power corridor would be constructed.
Based on available information, I have determined waters of the United States do not occur on the project site. The basis for our determination can be found in the enclosed Approved Jurisdictional Determination (JD) forms.
This regulation prescribes the guiding principles, policy, organization, responsibilities, and procedures for implementation of risk-informed dam safety program activities and a dam safety portfolio risk management process with the USACE.
This document describes the environmental effects associated with issuance of a permit by the U.S. Army Corps of Engineers (Corps) under Section 404 of the Clean Water Act that would allow for the proposed construction, operation and closure of a new tailings storage facility in the Ripsey Wash drainage area located about ten miles northwest of the community of Kearny in Pinal County, Arizona.
This manual presents fundamental principles underlying the design and construction of earth and rock-fill dams. The general principles presented herein are also applicable to the design and construction of earth levees.