FISH AND WILDLIFE
Title of Rule and Other Identifying Information: Outfall
THIS RULE IS BEING PROPOSED UNDER AN EXPEDITED RULE-MAKING PROCESS THAT WILL ELIMINATE THE NEED FOR THE AGENCY TO HOLD PUBLIC HEARINGS, PREPARE A SMALL BUSINESS ECONOMIC IMPACT STATEMENT, OR PROVIDE RESPONSES TO THE CRITERIA FOR A SIGNIFICANT LEGISLATIVE RULE. IF YOU OBJECT TO THIS USE OF THE EXPEDITED RULE-MAKING PROCESS, YOU MUST EXPRESS YOUR OBJECTIONS IN WRITING AND THEY MUST BE SENT TO Evan Jacoby, Department of Fish and Wildlife, 600 Capitol Way North, Olympia, WA 98501-1091 , AND RECEIVED BY June 20, 2005.
Purpose of the Proposal and Its Anticipated Effects, Including Any Changes in Existing Rules: Deletes reference to nonexistant [a nonexistent] Washington Administrative Code section.
Reasons Supporting Proposal: Although the agency at one point filed rule proposals including storm water management projects, these rules were never adopted. The reference to such projects in this rule is meaningless.
Statutory Authority for Adoption: RCW 77.12.047.
Statute Being Implemented: RCW 77.12.047.
Rule is not necessitated by federal law, federal or state court decision.
Name of Proponent: Department of Fish and Wildlife, governmental.
Name of Agency Personnel Responsible for Drafting: Evan Jacoby, 1111 Washington Street, Olympia, (360) 902-2930; Implementation: Greg Hueckel, 1111 Washington Street, Olympia, (360) 902-2416; and Enforcement: Bruce Bjork, 1111 Washington Street, Olympia, (360) 902-2373.
April 14, 2005
AMENDATORY SECTION(Amending Order 94-160, filed 11/14/94, effective 12/15/94)
WAC 220-110-170 Outfall structures. Outfall structure projects shall incorporate mitigation measures as necessary to achieve no-net-loss of productive capacity of fish and shellfish habitat. ((
Additional restrictions may apply to
outfall structures associated with storm water management
projects (see WAC 220-110-225).)) The following technical
provisions shall apply to outfall structure projects:
(1) The outfall structure shall be constructed according to an approved design to prevent the entry of fish, except where fish passage could enhance fish life or habitat.
(2) The watercourse bank and bed at the point of discharge shall be armored to prevent scouring.
(3) Excavation for placement of the structure or armoring materials shall be isolated from the wetted perimeter.
(4) Alteration or disturbance of banks and bank vegetation shall be limited to that necessary to construct the project. All disturbed areas shall be protected from erosion within seven days of completion of the project using vegetation or other means. The banks shall be revegetated within one year with native or other approved woody species. Vegetative cuttings shall be planted at a maximum interval of three feet (on center), and maintained as necessary for three years to ensure eighty percent survival. Where proposed, planting densities and maintenance requirements for rooted stock will be determined on a site-specific basis. The requirement to plant woody vegetation may be waived for areas where the potential for natural revegetation is adequate, or where other engineering or safety factors preclude them.
(5) Structures containing concrete shall be sufficiently cured prior to contact with water, to avoid leaching.
(6) All piling, lumber, or other materials treated with preservatives shall be sufficiently cured to minimize leaching into the water or bed. The use of wood treated with creosote or pentachlorophenol is not allowed in lakes.
[Statutory Authority: RCW 75.08.080. 94-23-058 (Order 94-160), § 220-110-170, filed 11/14/94, effective 12/15/94. Statutory Authority: RCW 75.20.100 and 75.08.080. 83-09-019 (Order 83-25), § 220-110-170, filed 4/13/83.]