Current through Register Vol. 24-18, September 15, 2024
(1)
Description: Only applicable
common construction provisions will be applied to a specific hydraulic project.
Common construction provisions include job site access, equipment use,
construction materials, sediment and erosion control containment, and job site
repair and revegetation.
(2)
Fish life concerns: Construction and other work can negatively
affect fish life. Some activities can kill or injure fish life while others can
cause behavioral changes that reduce growth and survival. Some activities can
damage the habitat used for spawning and egg incubation, rearing, feeding,
hiding from predators, and migration.
(3)
Staging areas: Establish
staging areas (used for activities such as equipment storage, vehicle storage,
fueling, servicing, and hazardous material storage) at a location and manner
that will prevent contaminants such as petroleum products, hydraulic fluid,
fresh concrete, sediments, sediment-laden water, chemicals, or any other toxic
or harmful materials from entering waters of the state.
(4)
Job site access:
(a) Clearly mark boundaries to establish the
limit of work associated with site access and construction.
(b) Limit the removal of native vegetation to
the minimum amount needed to construct the project. Woody vegetation greater
than four inches diameter that must be removed must be marked in the field by
the applicant and approved for removal by the department. The department may
require this large woody material to be placed on the beach after work is
completed. A revegetation plan must be submitted to restore riparian vegetation
removed as part of the project.
(c)
Retain all natural habitat features on the beach larger than twelve inches in
diameter including trees, stumps, logs, and large rocks. These natural habitat
features may be moved during construction but they must be placed near the
preproject location before leaving the job site.
(5)
Equipment use:
(a) Use of equipment on the beach area must
be held to a minimum and confined to specific access and work
corridors.
(b) Check equipment
daily for leaks and complete any required repairs before using the equipment in
or near the water. Do not complete repairs on the beach.
(c) Equipment used in or near water must use
environmentally acceptable lubricants composed of biodegradable base oils.
These are vegetable oils, synthetic esters, and polyalkylene glycols. The
department may waive this requirement for a small project that has minimal use
of equipment in or near the water if the duration of the project is forty-eight
hours or less or if containment prevents the lubricants from entering waters of
the state.
(6)
Vessel operation:
(a) Operate
vessels in water deep enough to prevent impacts from grounding and propeller
wash to seagrass, kelp, and forage fish spawning beds.
(b) Do not deploy anchors or spuds in
seagrass, kelp, and forage fish spawning beds.
(c) Maintain anchor cable tension so anchor
cables do not drag on the bed.
(7)
Construction materials:
(a) Bed material, other than material
excavated for bulkhead footings or placement of bulkhead base rock, must not be
utilized for project construction or fills. The department may allow placement
of dredged material in areas for beneficial uses such as beach nourishment or
cleanup of contaminated sediments.
(b) Wet concrete must be prevented from
entering waters of the state. Forms for any concrete structure must be
constructed to prevent leaching of wet concrete. Impervious material must be
placed over any exposed concrete not lined with forms that will come in contact
with waters of the state. Forms and impervious material must remain in place
until the concrete is cured.
(c) Do
not use wood treated with oil-type preservatives (creosote, pentachlorophenol)
in any hydraulic project. Wood treated with waterborne preservative chemicals
(ACZA, ACQ) may be used if the western wood preservers institute has approved
the waterborne chemical for use in the aquatic environment. The manufacturer
must follow the western wood preservers guidelines and the best management
practices to minimize the preservative migrating from treated wood into aquatic
environments. To minimize leaching, wood treated with a preservative by someone
other than a manufacturer must follow the field treating guidelines. These
guidelines are available at
http://www.wwpinstitute.org/.
(d) The department discourages the use of
whole tires. However, products made from recycled tires specifically
manufactured for use in the aquatic environment are approved by the
department.
(8)
Construction-related sediment, erosion and pollution containment:
(a) Project activities within the beach area
must not occur when the project area, including the work corridor, is inundated
by tidal waters unless the work is occurring from a vessel or barge.
(b) Protect all disturbed areas from erosion.
Maintain erosion and sediment control until demobilization and cleanup of the
job site is completed.
(c) When
using straw for erosion and sediment control, use only straw that has been
certified as free of noxious weeds and their seeds.
(d) Prevent contaminants from the project,
such as petroleum products, hydraulic fluid, fresh concrete, sediments,
sediment-laden water, chemicals, or any other toxic or harmful materials, from
entering or leaching into waters of the state.
(e) Use tarps or other methods to completely
contain treated wood sawdust, trimmings, and drill shavings.
(f) Deposit waste material from the project,
such as construction debris, silt, excess dirt, or overburden, in an upland
area above extreme high tide waters unless the material is approved by the
department for reuse in the project.
(g) Prevent transporting and introducing
aquatic invasive species by thoroughly cleaning vessels, equipment, boots,
waders, and other gear removing the gear from the job site.
(9)
Demobilization and
cleanup:
(a) Reshape beach area
depressions created during project activities to preproject beach level upon
project completion.
(b) All debris
or deleterious material resulting from construction must be removed from the
beach area or bed and prevented from entering waters of the state.
(c) Do not burn wood treated with
preservatives, trash, waste, or other deleterious materials waterward of the
OHWL.
(d) Restore the disturbed
bed, bank, and riparian zones as close as possible to their preproject
condition unless modified elevations and contours are approved by the
department.
(e) Using a proven
methodology, replace native riparian zone and aquatic vegetation, and wetland
vascular plants (except noxious weeds) damaged or destroyed by construction.
The department may require a vegetation monitoring and contingency
plan.
(f) The department must
approve species composition, planting densities and a maintenance plan for
replanting on a site-specific basis. The species composition should be similar
to the surrounding native vegetation.
(g) Complete replanting during the first
dormant season (late fall through late winter) after project completion.
Maintain plantings for at least three years to ensure at least eighty percent
of the plantings survive. Failure to achieve the eighty percent survival in
year three will require that a person submit a plan with follow-up measures to
achieve requirements or reasons to modify requirements.
(h) The department may waive the requirement
to plant vegetation where the potential for natural revegetation is
adequate.
(i) The department may
require fencing or other structures to prevent livestock, wildlife, or
unauthorized persons from accessing the replanted riparian and wetland sites
until the plantings are well established.
(j) Remove temporary erosion and sediment
control methods after job site is stabilized.
(10)
Required permittee
notification: If a fish kill occurs or fish are observed in distress at
the job site, immediately stop all activities causing harm. Immediately notify
the department of the problem. If the likely cause of the fish kill or fish
distress is related to water quality, also notify the Washington military
department emergency management division at 1-800-258-5990. Activities related
to the fish kill or fish distress must not resume until the department gives
approval. The department may require additional measures to mitigate
impacts.
