WRE-April 2010-Adopted.Indd
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WATER RESOURCES ELEMENT An Amendment to General Plan 2000 Howard County April 2010 PREFACE During the 2006 legislati ve session, the Maryland General Assembly enacted House Bill 1141 Land Use – Local Government Planning. HB 1141 requires that local jurisdicti ons adopt a water resources element in their comprehensive plans. The Howard County Water Resources Element (WRE) serves as an amendment to General Plan 2000 that adds Policies and Acti ons intended to ensure that the County has adequate water resource capaciti es to meet future growth needs through 2030. The Howard County Environmental Sustainability Board, which is comprised of environmental experts that advise the County Executi ve on environmental matt ers, served as a citi zen’s advisory committ ee for the Water Resources Element amendment. The Environmental Sustainability Board and Department of Planning and Zoning cosponsored two public meeti ngs in fall 2009 to acquaint the public with the Draft WRE and to solicit comments. The Proposed WRE Amendment was presented to the Planning Board for review at a public hearing in December 2009. The Planning Board unanimously approved a moti on to recommend County Council approval of the WRE. The County Council held a public hearing to consider the WRE Amendment in March 2010. By vote of the County Council and signature of the County Executi ve, the Amendment was approved on April 7, 2010 and became eff ecti ve on June 8, 2010. Additi onal informati on about the Water Resources Element amendment is available either by contacti ng the Department of Planning and Zoning or through the Howard County web site at: htt p://www.howardcountymd.gov/ i TABLE OF CONTENTS EXECUTIVE SUMMARY ........................................................................................................ 1 Water Resources Element .............................................................................................................................................. 1 Drinking Water and Wastewater ................................................................................................................................. 1 Water and Related Land Resources ............................................................................................................................ 2 GENERAL PLAN 2000 .......................................................................................................... 5 General Plan Visions ......................................................................................................................................................... 5 The Water Resources Element ..................................................................................................................................... 5 Planned Service Area and Priority Funding Area ................................................................................................. 6 Growth Projections .......................................................................................................................................................... 7 DRINKING WATER AND WASTEWATER ............................................................................... 9 Introduction ........................................................................................................................................................................ 9 The Provision of Public Water and Sewer Services ............................................................................................. 9 Drinking Water .................................................................................................................................................................10 The Public Water System ......................................................................................................................................10 Outside the Planned Service Area ....................................................................................................................13 Source Water Assessments ..................................................................................................................................14 Water Conservation ................................................................................................................................................15 Wastewater ........................................................................................................................................................................16 The Public Sewer System ......................................................................................................................................16 Outside the Planned Service Area .....................................................................................................................19 Redevelopment within / Expansion of the Planned Service Area ...............................................................21 Infrastructure Maintenance ........................................................................................................................................23 Policies and Actions ........................................................................................................................................ 23 WATER AND RELATED LAND RESOURCES .......................................................................... 25 Introduction .......................................................................................................................................................................25 Stormwater Management .............................................................................................................................................25 ii The National Pollutant Discharge Elimination System ............................................................................27 Stormwater Management Facilities .................................................................................................................27 Water Quality in Local Streams ..................................................................................................................................28 Tier II Waters .............................................................................................................................................................31 Land Use and Nutrient Load Changes .....................................................................................................................31 Impervious Cover .....................................................................................................................................................33 Development Regulations to Protect Water Resources ..................................................................................34 Watershed Planning and Management ..................................................................................................................34 Watershed Studies ...................................................................................................................................................35 Restoration Projects................................................................................................................................................36 Best Management Practices .................................................................................................................................37 Regional Water Resources ....................................................................................................................................38 Total Maximum Daily Loads ................................................................................................................................39 Patuxent Reservoirs ................................................................................................................................................41 Funding .......................................................................................................................................................................41 Policies and Actions ........................................................................................................................................ 42 APPENDIX A: GROWTH PROJECTIONS .............................................................................. 45 Introduction .......................................................................................................................................................................45 Projections ..........................................................................................................................................................................46 Residential Projections ..........................................................................................................................................46 Details by Water Pressure Zone and Sewer Service Areas .....................................................................50 Nonresidential Projections ..................................................................................................................................50 Modifications to the Growth Projections .......................................................................................................51 APPENDIX B: ..................................................................................................................... 53 NONPOINT AND POINT SOURCE LOADINGS ....................................................................