(1) Targeted stormwater site plans shall be submitted to document compliance with minimum requirements 1 through 5 (SCC 30.63A.400 through 30.63A.525) and compliance with the Drainage Manual, volume I. The targeted stormwater site plan submittal shall include both the items required by volume I, chapter 3 of the Drainage Manual and the targeted stormwater site plan submittal checklist items adopted by the department pursuant to SCC 30.70.030. Targeted stormwater site plan submittal requirements include a preliminary development layout of the proposed drainage system. The layout shall depict the results of the site planning process pursuant to SCC 30.63A.400 and shall include the nature and extent of the work proposed and a written executive summary explaining how the drainage system will function and how LID feasibility was determined.

(2) In addition to compliance with minimum requirements 1 through 5, compliance with minimum requirements 6, 7 and 8 pertaining to runoff treatment, flow control and detention or treatment in wetlands and their buffers may be required based upon the site plan, scope of the proposed project and the results of the hydrologic analysis required under volume I, chapter 3 of the Drainage Manual.

(3) When required by the director, targeted stormwater site plan submittals shall include additional or detailed engineering and design information pursuant to minimum requirements 1 through 5 (SCC 30.63A.400 through 30.63A.525) for site-specific conditions, development activity in the public right-of-way, conveyance sizing, on-site stormwater management BMP techniques and facilities, LID design or as needed to protect the public health, safety and welfare. (Added by Amended Ord. 10-026, June 9, 2010, Eff date Sept. 30, 2010; Amended by Ord. 15-102, Jan. 11, 2016, Eff date Jan. 22, 2016).