Surface Water Design Manual Document Code No.: PUT 8-3-3 (PR)
Department/Issuing Agency: Department of Natural Resources and Parks
Effective Date: January 24, 2005
Approved: /s/ Pam Bissonnette
Type of Action: Superseding PUT 8-3-2 (PR), October 29, 1998
Signed document (PDF, 4.3 MB)
1.0 SUBJECT TITLE: Surface Water Design Manual 2.0 PURPOSE: 2.1 To adopt the 2005 Surface Water Design Manual and establish a standard procedure for reviewing the drainage plans and related material of applications for development within unincorporated King County in compliance with the Surface Water Design Manual and King County Code Chapter 9.04 (as amended by Ordinance No. 13191). 3.0 INDIVIDUALS AND ORGANIZATIONS AFFECTED: 3.1 Landowners and residents of unincorporated King County. 3.2 Applicants. 3.3 Department of Development and Environmental Services. 3.4 Department of Natural Resources and Parks, Water and Land Resources Division. 4.0 REFERENCES: 4.1 King County Charter Section 850; King County Code Chapter 9.04. 4.2 King County Ordinance Nos. 15051, 15052, 15053 (2004), and 13189, 13190, 13191 (1998). 4.3 1994 King County Comprehensive Plan. 5.0 DEFINITIONS: 5.1 "Applicant" means a property owner, or any person or entity designated or named in writing by the property owner to be the applicant, in an application for a development proposal, permit, or approval. 5.2 "Development" means any activity that requires a permit or approval, including but not limited to a building permit, grading permit, shoreline substantial development permit, conditional use permit, special use permit, zoning variance or reclassification, subdivision, short subdivision, Urban Planned Development, building site plan, site development permit, or right-of-way use permit. "Development" does not include a Class I, II, III, or IV-S forest practice conducted in accordance with Chapter 76.09 RCW and Title 222 WAC or a class IV-G nonconversion forest practice, as defined in K.C.C. chapter 21A.06, conducted in accordance with Chapter 76.09 RCW and Title 222 WAC and a county approved forest management plan. 5.3 "Drainage" means the collection, conveyance, containment, or discharge, or any combination thereof, of surface and storm water runoff. 5.4 "Surface and storm water" means water originating from rainfall and other precipitation that is found on ground surfaces and in drainage facilities, rivers, streams, springs, seeps, ponds, lakes, wetlands and shallow groundwater. 5.5 " Surface Water Design Manual " means the manual and supporting documentation referenced or incorporated in the manual, describing surface and storm water design and analysis requirements, procedures, and guidance that has been formally adopted by rule under the procedures in KCC 2.98. The Surface Water Design Manual will be available from the King County Department of Development and Environmental Services or the Department of Natural Resources and Parks, Water and Land Resources Division, or their successor agencies. 6.0 POLICIES: 6.1 The Surface Water Design Manual contains the King County surface and storm water design and analysis requirements, procedures, and guidance for development applications in unincorporated King County. 6.2 The Surface Water Design Manual shall be made available for reading and for purchase at the Department of Natural Resources and Parks, Water and Land Resources Division and the Department of Development and Environmental Services Permit Center. Viewing locations also include selected King County libraries. Electronic format may be available by contacting the Water and Land Resources Division at (206) 296-6519. 6.3 The provisions of this Public Rule are exempted from the rule of strict construction and shall be liberally construed to give full effect to the objectives and purposes for which the Rule was adopted. 6.4 If any provision of this Public Rule is held invalid, the remainder of this Public Rule shall remain unaffected and shall continue in full force and effect. If the application of any provisions of this Public Rule to any person or property is held invalid, the application of that provision to other persons or properties shall remain unaffected and shall continue in full force and effect. 7.0 PROCEDURES: Action By: Director, Department of Natural Resources and Parks Action: 7.1 Reviews the Surface Water Design Manual and revises it if necessary. Action By: Applicant Action: 7.2 Prepares drainage plans in compliance with the Surface Water Design Manual and submits those drainage plans as part of a development application to the Department of Development and Environmental Services. Action By: Director, Department of Development and Environmental Services Action: 7.3 Reviews the material submitted in Step 7.2 and determines if it complies with the Surface Water Design Manual. 7.3.1 Returns inadequate material to the applicant with specific instructions to comply with the Surface Water Design Manual. 7.3.2 Forwards adequate application to be processed according to the established review process. 8.0 RESPONSIBILITIES: 8.1 The Department of Natural Resources and Parks is responsible for: 8.1.1 Issuing revisions of the Surface Water Design Manual as new information becomes available. 8.1.2 Providing training to the general public, developers, and employees of the Department of Development and Environmental Services. 8.2 The Department of Development and Environmental Services is responsible for: 8.2.1 Identifying those development applications that are required to comply with the Surface Water Design Manual. 8.2.2 Determining Whether the development application submitted by the applicant complies with the Surface Water Design Manual; and approving those applications which do comply. 8.2.3 Inspecting development construction and sites for compliance with approved plans and the Surface Water Design Manual and enforcing these requirements. 8.3 The applicant is responsible, at a minimum, for: 8.3.1 Demonstrating that the development application complies with the Surface Water Design Manual. 8.3.2 Constructing and maintaining the improvements required by the approved plans and the Surface Water Design Manual. 9.0 APPENDICES: These appendices are available from the Department of Natural Resources and Parks, Water and Land Resources Division: 9.1 Surface Water Design Manual Chapters 1, 2, 3, 4, 5, and 6; and Appendices A, B, C, and D. 9.2 Surface Water Design Manual Landslide Hazard Drainage Areas Map 9.3 Surface Water Design Manual Flow Control Applications Map 9.4 Surface Water Design Manual Water Quality Applications Map |
