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Broadway Everett Expansion Storm Drainage Report <br /> November 16, 2022 <br /> 2.0 - MINIMUM REQUIREMENTS <br /> The design of the facilities on site conforms to Chapter 4 of the "Design and Construction Standards and <br /> Specifications" and the "2019 Stormwater Management Manual for Western Washington". <br /> Minimum Requirements Analysis <br /> The site proposes 25,136 sf of new plus replaced hard surface which includes 23,319 sf of proposed <br /> building roof and 1,817 sf of impervious concrete walkway. Minimum Requirement#1 through #9 apply to <br /> this project. <br /> See Appendix A— Hard Surface Summary for Proposed Design. <br /> See Flow Chart below for more details on minimum requirements selection process. <br /> Does the Project result in 2,000 square feet,or more,of new plus replaced hard surface area? <br /> OR <br /> Does the land disturbing activity total 7,000 square feet or greater? <br /> Yes I lNo <br /> Minimum Requirements#1 through#5 <br /> apply to the new and replaced hard Minimum Requirement#2 applies. <br /> surfaces and the land disturbed. <br /> Does the Project add 5,000 square feet or more of new hard surfaces? <br /> OR <br /> Convert%acres or more of vegetation to lawn or landscaped areas? <br /> OR <br /> Convert 2.5 acres or more of native vegetation to pasture? <br /> Yes No <br /> All Minimum Requirements apply Next Question <br /> to the new hard surfaces and the Is this a road <br /> converted vegetation areas. <br /> elated project? NO <br /> Yes <br /> Does the Project add 5,000 square feet or more of new hard surfaces? <br /> Yes NO Is the total of new plus replaced hard sudaoes 5.000 <br /> square feet or more, <br /> Do the new hard AND <br /> surfaces add 50°/or Np No additional NO does the value of the proposed Improvements- <br /> urfa l0 the existing <br /> including interior improvements-exceed 50%of the <br /> morhard to <br /> within requl rements. assessed value(or replacement value)of the. <br /> the Slle? • ezlsting ProJect She Improvements(for <br /> commercial or Industrial projects)OR <br /> . exlstng She Improvements(for all other projects) <br /> Yes �[Allum Requirements apply to the new and replaced <br /> d surfaces and converted vegetation areas. Yes <br /> Flow Chart for Determining Requirements for <br /> loom Redevelopment <br /> Revised March2019 <br /> DEPARTMENT OF <br /> ECOLOGYPlease see http.IAvww.ecy wa.gowcopynghthrml for copy fight notice including permissions <br /> State of Washingtoni limitation of liability,and disclaimer. <br /> Figure 2— Minimum Requirement Flow Chart <br /> Page 2 <br />