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1.0 Introduction <br />1.1 Background <br />The purpose of this Comprehensive Surface Water Management Plan is to provide a <br />strategic framework for the management of surface water within the City of Tukwila. This <br />Surface Water Plan is intended to be a flexible document that may be revised should <br />priorities or regulatory requirements change. This Surface Water Plan can also serve as a <br />reference for City departments whose activities may impact surface water drainage, water <br />quality, or aquatic habitat concerns. <br />This 2013 Surface Water Plan is an update to the Surface Water Plan prepared in 2003 <br />(CH2MHILL 2003). The previous surface water plan was prepared in 1993. This 2013 <br />Surface Water Plan addresses changes that have taken place since 2003, including the <br />annexation of 259 acres into the City of Tukwila in 2009, expansion of regulatory <br />requirements, and changing surface water management techniques and strategies. This 2013 <br />Plan also reflects the surface water capital and non - structural investments that the City of <br />Tukwila has made since the 2003 Surface Water Plan, including addressing priority <br />drainage, water quality, and aquatic habitat issues identified in that plan. <br />1.2 Plan Objective <br />The objective of this 2013 Surface Water Plan is to provide a surface water management <br />framework that will protect the public's health and safety, protect both public and private <br />property, conserve and enhance the natural aquatic systems within the City, and maintain <br />compliance with local, state, and federal regulations related to surface water. <br />1.3 Report Organization <br />The main body of this Surface Water Plan consists of a series of sections that summarize the <br />general topics of this plan. Technical conclusions as well as detailed information are <br />included in the appendices. The Plan includes the following sections: <br />• Section 1- Introduction <br />• Section 2 - Drainage Basin and Watershed Characteristics (supporting information in <br />Appendix A and in Appendix B) <br />• Section 3 - Regulations and Policies (supporting information in Appendix C) <br />• Section 4 - Surface Water Issues (supporting information in Appendix D) <br />• Section 5 - Capital Improvement Projects (supporting information in Appendix E) <br />• Section 6 - Operations and Maintenance <br />• Section 7 - Recommendations <br />WBG031611103411SEA1 TUKWILASURFACEWATERCOMPPLANFINAL V2.DOCX 1 -1 <br />