The following technical provisions apply to projects in saltwater areas. Project activities may be prohibited where project impacts adversely affect fish habitats for which no proven mitigation methods are available.
(1) Use of equipment on the beach area shall be held to a minimum and confined to specific access and work corridors.
(2) Bed material, other than material excavated for bulkhead footings or placement of bulkhead base rock, shall 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.
(3) Wet concrete shall be prevented from entering waters of the state. Forms for any concrete structure shall be constructed to prevent leaching of wet concrete. Impervious material shall be placed over any exposed concrete not lined with forms that will come in contact with waters of the state. Forms and impervious material shall remain in place until the concrete is cured.
(4) Beach area depressions created during project activities shall be reshaped to preproject beach level upon project completion. Hydraulic clam harvesters shall comply with those conditions specified in WAC 220-52-018
(5) No debris or deleterious material shall be disposed of or abandoned waterward of the ordinary high water line except at an approved in-water site.
(6) All debris or deleterious material resulting from construction shall be removed from the beach area or bed and prevented from entering waters of the state.
(7) No petroleum products or other deleterious materials shall enter surface waters.
(8) Project activities shall be conducted to minimize siltation of the beach area and bed.
(9) All piling, lumber, and other materials treated with preservatives shall be sufficiently cured to minimize leaching into the water or bed.
(10) Wood treated with preservatives, trash, waste, or other deleterious materials shall not be burned below the ordinary high water line. Limited burning of untreated wood or similar material, subject to timing restrictions or other provisions may be allowed.
(11) Project activities shall not degrade water quality to the detriment of fish life.
(12) If a fish kill occurs or fish are observed in distress, the project activity shall immediately cease and the department granting the HPA shall be notified immediately.
[Statutory Authority: RCW 75.08.080
. WSR 94-23-058 (Order 94-160), § 220-110-270, filed 11/14/94, effective 12/15/94. Statutory Authority: RCW 75.20.100
and 75.08.080. WSR 83-09-019 (Order 83-25), § 220-110-270, filed 4/13/83.]