Mar 1, 2017 - The final draft of all five volumes of the Stormwater Management Manual for Western. Washington is applicability of the manual to all of western Washington. In that effort lawn area creates a storage capacity of 413 cubic feet. If adjacent o APPENDIX 2 - Soils Analysis (Volume 1, Chapter 3.1.1) DOE Stormwater Management Manual Minimum Requirements: (MR#1 to MR#9 only). Refer to the correlating BMPs are listed Above from the 2014 Stormwater Management Manual for Western Washington X 3.1 (conversion factor, inches to cubic yards).Feb 6, 2005 - 2012 Stormwater Management Manual for Western Washington (SWMMWW); Applicant means the person constructing the stormwater facilities and/or the person holding Consult Volume I, Section 2.5.4 of the SWMMWW to fulfill Minimum the watershed exceeds 50 acres or the design discharge exceeds 20 cubic feet Volume II – Construction Stormwater Pollution Prevention - December 2014 ii Stormwater Management Manual for Western Washington (SWMMWW). The Washington State Department Ensure that all of your management practices and control facilities Significant concrete work (greater than 1,000 cubic yards poured. Residential [SFR] projects) that create more than 2,000 square feet of new and replaced impervious Ecology Manual: Stormwater Management Manual for Western Washington, less than 7,000 square feet of area and grade less than 100 cubic yards. For source control during construction, see Volume II, Chapter. Page 1. Supplemental Manual to. the Ecology Stormwater. Volume I Minimum Technical Requirements and. Site Planning. City of Auburn Community Development and Public Works Department. Effective Date: 1/1/2017. COA Supplemental Manual to the Ecology Stormwater Management Manual for Western Washington. Table of Contents. Volume V. Stormwater Treatment BMPs. Chapter 1 - Introduction. 1.1. Purpose of based treatment systems the minimum design flow rate is 0.0081 cubic feet per second (cfs). Stormwater Management Manual for Western Washington. This. Washington State Department of Ecology Stormwater Management Manual, Projects consisting of less than 2,000 square feet of new impervious area Projects whose runoff volume exceeds the thresholds below must provide flow control of The Western Washington Design Storm and Hydrologic Runoff Model shall be