SWCP Final20150303

City of Des Moines | March 2015 Citation Parametrix. 2015. City of Des Moines 2015 Surface Water Comprehensive Plan. Prepared by Parametrix, Seattle, Washington. March 2015. City of Des Moines | March 2015 This page intentionally left blank. City of Des Moines 2015 Surface Water Comprehensive Plan 216-1792-009 (01/05) Table of Contents Executive Summary ................................................................... 1 Plan Goals and Development ..................................................................................................... 1 Purpose ........................................................................................................................... 1 Methodology .................................................................................................................... 1 Future Updates ................................................................................................................ 2 Study Area .................................................................................................................................. 2 Current Surface Water Management Program ........................................................................... 5 Overview .......................................................................................................................... 5 Budgeting ......................................................................................................................... 5 Identified Compliance Gaps in Current Program ............................................................. 7 Program Recommendations ....................................................................................................... 7 Key Drivers ...................................................................................................................... 7 Components .................................................................................................................... 8 Implementation ................................................................................................................ 8 Introduction ..................................................................... 1-1 1.1 Background .................................................................................................................. 1-1 1.2 Regulatory Context ...................................................................................................... 1-2 1.2.1 State Permit ................................................................................................... 1-2 1.2.2 City Codes ..................................................................................................... 1-3 1.3 Purpose ....................................................................................................................... 1-3 1.4 Plan Development Methodology .................................................................................. 1-3 1.4.1 Existing Data Review ..................................................................................... 1-3 1.4.2 Public Involvement ......................................................................................... 1-4 1.4.3 Surface Water Capital Improvement Plan ...................................................... 1-4 City of Des Moines | March 2015 1.4.4 Gap Analysis ................................................................................................. 1-5 1.5 Updates to this Plan ..................................................................................................... 1-5 Surface Water Study Area .............................................. 2-1 2.1 Overview ...................................................................................................................... 2-1 2.2 Major Drainage Basins ................................................................................................. 2-1 2.2.1 Des Moines Creek Basin ............................................................................... 2-2 2.2.2 Massey Creek Basin .................................................................................... 2-19 2.2.3 McSorley Creek Basin ................................................................................. 2-21 2.2.4 Additional Basins ......................................................................................... 2-22 Current Surface Water Management Program ............... 3-1 3.1 Overview ...................................................................................................................... 3-1 3.2 Planning and Engineering ............................................................................................ 3-1 3.3 Inspections and Maintenance ...................................................................................... 3-4 3.4 NPDES Permit Program .............................................................................................. 3-5…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]