Page 92 - _ 180314 Special Yucaipa GSA Packet

Nationwide Permit 6
Survey Activities
Federal Register / Vol. 77, No. 34 / February 21, 2012
Effective Date: March 19, 2012
Expiration Date: March 18, 2017

Survey Activities. Survey activities, such as core sampling, seismic exploratory operations, plugging of seismic
shot holes and other exploratory-type bore holes, exploratory trenching, soil surveys, sampling, sample plots or
transects for wetland delineations, and historic resources surveys. For the purposes of this NWP, the term

the purpose of mapping or sampling the exposed material. The area in which the exploratory trench is dug must be
restored to its pre-construction elevation upon completion of the work and must not drain a water of the United
States. In wetlands, the top 6 to 12 inches of the trench should normally be backfilled with topsoil from the trench.
This NWP authorizes the construction of temporary pads provided the discharge does not exceed 1/10-acre in waters
of the U.S. Discharges and structures associated with the recovery of historic resources are not authorized by this
NWP. Drilling and the discharge of excavated material from test wells for oil and gas exploration are not authorized
by this NWP; the plugging of such wells is authorized. Fill placed for roads and other similar activities is not
authorized by this NWP. The NWP does not authorize any permanent structures. The discharge of drilling mud and
cuttings may require a permit under Section 402 of the Clean Water Act. (Sections 10 and 404)

Nationwide Permit General Conditions

Note: To qualify for NWP authorization, the prospective permittee must comply with the following general
conditions, as applicable, in addition to any regional or case-specific conditions imposed by the division engineer or
district engineer. Prospective permittees should contact the appropriate Corps district office to determine if regional
conditions have been imposed on an NWP.

1. Navigation.
(a) No activity may cause more than a minimal adverse effect on navigation.
(b) Any safety lights and signals prescribed by the U.S. Coast Guard, through regulations or otherwise,
must be installed and maintained at the permittee's expense on authorized facilities in navigable waters of the United
States.
(c) The permittee understands and agrees that, if future operations by the United States require the removal,
relocation, or other alteration, of the structure or work herein authorized, or if, in the opinion of the Secretary of the
Army or his authorized representative, said structure or work shall cause unreasonable obstruction to the free
navigation of the navigable waters, the permittee will be required, upon due notice from the Corps of Engineers, to
remove, relocate, or alter the structural work or obstructions caused thereby, without expense to the United States.
No claim shall be made against the United States on account of any such removal or alteration.

2. Aquatic Life Movements. No activity may substantially disrupt the necessary life cycle movements of
those species of aquatic life indigenous to the waterbody, including those species that normally migrate through the
area, unless the activity's primary purpose is to impound water. All permanent and temporary crossings of
waterbodies shall be suitably culverted, bridged, or otherwise designed and constructed to maintain low flows to
sustain the movement of those aquatic species.

3. Spawning Areas. Activities in spawning areas during spawning seasons must be avoided to the
maximum extent practicable. Activities that result in the physical destruction (e.g., through excavation, fill, or
downstream smothering by substantial turbidity) of an important spawning area are not authorized.

4. Migratory Bird Breeding Areas. Activities in waters of the United States that serve as breeding areas
for migratory birds must be avoided to the maximum extent practicable.

1

Yucaipa Groundwater Sustainability Agency - March 14, 2018 - Page 88 of 226