Goose Creek Watershed Management Plan Version - Charlotte ...

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Goose Creek Watershed Management Plan Version 1 Completed by: Charlotte-Mecklenburg Storm Water Services Water Quality Program Staff Date Completed: October 31, 2009
Goose Creek Watershed Management Plan Version 1...………………...October 31, 2009 Table of Contents Executive Summary ...........................................................................................................1 Section 1 Introduction ................................................................................................2 1.1 Purpose .........................................................................................................2 1.2 Background ..................................................................................................2 Section 2 Current and Historical Conditions...........................................................8 2.1 Previous Work .............................................................................................8 2.1.1 Fecal Coliform TMDL .................................................................................9 2.1.2 Water Quality Recovery Program ................................................................9 2.1.3 NC DOT .......................................................................................................9 2.1.4 Charlotte Mecklenburg Utilities ..................................................................9 2.1.5 North Carolina Ecosystem Enhancement Program ....................................10 2.2 Existing Conditions ....................................................................................11 2.2.1 Water Chemistry ........................................................................................10 2.2.2 Biological ...................................................................................................11 2.2.3 Physical ......................................................................................................14 2.2.4 Stream Flow ...............................................................................................13 2.2.5 Land Use/Land Cover ................................................................................13 2.2.6 Soils............................................................................................................15 2.3 Current Watershed Protection Efforts ........................................................16 2.3.1 S.W.I.M. Buffer Ordinance........................................................................16 2.3.2 Post Construction Buffers ..........................................................................17 2.3.3 Goose Creek Watershed Site Specific Management Plan .........................18 2.3.4 BMP Retrofits and Land Acquisition ........................................................19 2.3.5 Existing NPDES Permitted WWTPs .........................................................20 Section 3 Watershed Indicators and Goals ............................................................21 3.1 Upland ........................................................................................................21 3.1.1 Upland Water Quality Indicators ...............................................................21 3.1.2 Upland Water Quality Goals ......................................................................21 3.2 In-Stream....................................................................................................22 3.2.1 In-Stream Water Quality Indicators ...........................................................22 3.2.2 In-Stream Water Quality Goals .................................................................22 3.3 Channel ......................................................................................................28 3.3.1 Stream Channel Indicators .........................................................................29 3.3.2 Stream Channel Goals................................................................................30 Section 4 Watershed Assessment ............................................................................24 4.1 Upland Characterization ............................................................................24 4.1.1 Methodology ..............................................................................................24 4.1.2 Results ........................................................................................................29 4.2 Stream Channel Characterization ..............................................................36 4.2.1 Methodology ..............................................................................................36 4.2.2 Results ........................................................................................................39 i
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