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Nationwide Permit 6 Summary
<br />strong winds such as those accompanying a hurricane or other
<br />intense storm.
<br />Historic Property: Any prehistoric or historic district, site
<br />(including archaeological site), building, structure, or other
<br />object included in, or eligible for inclusion in, the National
<br />Register of Historic Places maintained by the Secretary of the
<br />Interior. This term includes artifacts, records, and remains that
<br />are related to and located within such properties. The term
<br />includes properties of traditional religious and cultural
<br />importance to an Indian tribe or Native Hawaiian organization
<br />and that meet the National Register criteria (36 CFR part 60).
<br />Independent utility: A test to determine what constitutes a
<br />single and complete non-linear project in the Corps
<br />Regulatory Program. A project is considered to have
<br />independent utility if it would be constructed absent the
<br />construction of other projects in the project area. Portions of a
<br />multi -phase project that depend upon other phases of the
<br />project do not have independent utility. Phases of a project
<br />that would be constructed even if the other phases were not
<br />built can be considered as separate single and complete
<br />projects with independent utility.
<br />Indirect effects: Effects that are caused by the activity and are
<br />later in time or farther removed in distance, but are still
<br />reasonably foreseeable.
<br />Intermittent stream: An intermittent stream has flowing
<br />water during certain times of the year, when groundwater
<br />provides water for stream flow. During dry periods,
<br />intermittent streams may not have flowing water. Runoff from
<br />rainfall is a supplemental source of water for stream flow.
<br />Loss of waters of the United States: Waters of the United
<br />States that are permanently adversely affected by filling,
<br />flooding, excavation, or drainage because of the regulated
<br />activity. Permanent adverse effects include permanent
<br />discharges of dredged or fill material that change an aquatic
<br />area to dry land, increase the bottom elevation of a waterbody,
<br />or change the use of a waterbody. The acreage of loss of
<br />waters of the United States is a threshold measurement of the
<br />impact to jurisdictional waters for determining whether a
<br />project may qualify for an NWP; it is not a net threshold that
<br />is calculated after considering compensatory mitigation that
<br />may be used to offset losses of aquatic functions and services.
<br />The loss of stream bed includes the acres or linear feet of
<br />stream bed that are filled or excavated as a result of the
<br />regulated activity. Waters of the United States temporarily
<br />filled, flooded, excavated, or drained, but restored to pre -
<br />construction contours and elevations after construction, are not
<br />included in the measurement of loss of waters of the United
<br />States. Impacts resulting from activities that do not require
<br />Department of the Army authorization, such as activities
<br />eligible for exemptions under section 404(f) of the Clean
<br />Water Act, are not considered when calculating the loss of
<br />waters of the United States. Navigable waters: Waters subject
<br />to section 10 of the Rivers and Harbors Act of 1899. These
<br />waters are defined at 33 CFR part 329.
<br />Non -tidal wetland: A non -tidal wetland is a wetland that is
<br />not subject to the ebb and flow of tidal waters. Nontidal
<br />wetlands contiguous to tidal waters are located landward of
<br />the high tide line (i.e., spring high tide line).
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<br />Open water: For purposes of the NWPs, an open water is any
<br />area that in a year with normal patterns of precipitation has
<br />water flowing or standing above ground to the extent that an
<br />ordinary high water mark can be determined. Aquatic
<br />vegetation within the area of flowing or standing water is
<br />either non -emergent, sparse, or absent. Vegetated shallows are
<br />considered to be open waters. Examples of "open waters"
<br />include rivers, streams, lakes, and ponds.
<br />Ordinary High Water Mark: An ordinary high water mark is
<br />a line on the shore established by the fluctuations of water and
<br />indicated by physical characteristics, or by other appropriate
<br />means that consider the characteristics of the surrounding
<br />areas.
<br />Perennial stream: A perennial stream has flowing water year-
<br />round during a typical year. The water table is located above
<br />the stream bed for most of the year. Groundwater is the
<br />primary source of water for stream flow. Runoff from rainfall
<br />is a supplemental source of water for stream flow.
<br />Practicable: Available and capable of being done after taking
<br />into consideration cost, existing technology, and logistics in
<br />light of overall project purposes.
<br />Pre -construction notification: A request submitted by the
<br />project proponent to the Corps for confirmation that a
<br />particular activity is authorized by nationwide permit. The
<br />request may be a permit application, letter, or similar
<br />document that includes information about the proposed work
<br />and its anticipated environmental effects. Preconstruction
<br />notification may be required by the terms and conditions of a
<br />nationwide permit, or by regional conditions. A pre -
<br />construction notification may be voluntarily submitted in cases
<br />where preconstruction notification is not required and the
<br />project proponent wants confirmation that the activity is
<br />authorized by nationwide permit.
<br />Preservation: The removal of a threat to, or preventing the
<br />decline of, aquatic resources by an action in or near those
<br />aquatic resources. This term includes activities commonly
<br />associated with the protection and maintenance of aquatic
<br />resources through the implementation of appropriate legal and
<br />physical mechanisms. Preservation does not result in a gain of
<br />aquatic resource area or functions.
<br />Protected tribal resources: Those natural resources and
<br />properties of traditional or customary religious or cultural
<br />importance, either on or off Indian lands, retained by, or
<br />reserved by or for, Indian tribes through treaties, statutes,
<br />judicial decisions, or executive orders, including tribal trust
<br />resources.
<br />Re-establishment: The manipulation of the physical,
<br />chemical, or biological characteristics of a site with the goal of
<br />returning naturalihistoric functions to a former aquatic
<br />resource. Reestablishment results in rebuilding a former
<br />aquatic resource and results in a gain in aquatic resource area
<br />and functions.
<br />Rehabilitation: The manipulation of the physical, chemical,
<br />or biological characteristics of a site with the goal of repairing
<br />natural/historic functions to a degraded aquatic resource.
<br />Rehabilitation results in a gain in aquatic resource function,
<br />but does not result in a gain in aquatic resource area.
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