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    • Environmental Services

    Environmental Impact Areas

     

    Chesapeake Bay Preservation, Stormwater Management, Floodplain & Erosion and Sediment Ordinances

    PURPOSE

     

                    Arlington County adopted several ordinances to protect the land, waterways and ultimately preserve the Chesapeake Bay.  These ordinances were designed to manage and minimize the effect of land development on these areas.  These items include erosion and sediment control, stormwater detention and management practices, resource protection area regions, and floodplain management practices.

     

     

    Chesapeake Bay Preservation Ordinance (CBPO)

     

    Resource Protection Areas (RPAs) -- extremely sensitive areas, such as streams, rivers and watersheds, including a 100-foot buffer area around them

    Resource Management Areas (RMAs) -- areas in which improper development can also degrade water quality

     


    CHESAPEAKE BAY PRESERVATION ORDINANCE FORMS AND RESOURCES

     

    New Policy Change Announcements!

     Stormwater Compliance Policy Change Announcement (October 2011) (226 KB)

     Landscape Plan Compliance Policy Announcement (November 2011) (96 KB)

     Revised CBPO Compliance Criteria (55 KB)

    Ordinance Documents and Guidance Manuals

    Chesapeake Bay Preservation Ordinance: Chapter 61: Chesapeake Bay Preservation Ordinance (Revised - 12/08, 1.6 MB)

    Guidance Manual for the Chesapeake Bay Preservation Ordinance (updated October, 2011)

    Homeowners Guide to Chesapeake Bay Preservation Ordinance (234 KB)

    Appendices to the Chesapeake Bay Preservation Ordinance 

    Appendix A:  Stormwater Requirements Worksheet

    Appendix B:  Site Design Standards Worksheet (57 KB)

    Appendix C and D: Water Quality Impact Assessment Data Sheet and Exception Request (35 KB)

    Water Quality Impact Assessment Plan and Narrative Checklist (33 KB)

    NEW Appendix E:  20-year Tree Canopy Worksheet  (Revised - October, 2011) (74 KB)

    OLD Appendix E (for projects approved before October 2011):   20 Year Tree Canopy Worksheet 

    Appendix F:   Planting Notes and Standards (1.2 MB)
    Appendix G:   Stormwater Facility Maintenance and Monitoring Agreement (Word format)

     

     

     

    Stormwater Detention Ordinance (SWD)

    Arlington County Watersheds  Map

            The installation of on-site stormwater detention facilities as properties are developed or redeveloped within Arlington County for the purpose of reducing the harmful effects of stormwater runoff on streambeds, banks, parklands, private properties and other areas in the County.  The requirements enacted under this ordinance help to maintain a peak runoff rate as close to predevelopment levels, unless a waiver is granted.  For more information on waving the Stormwater Detention requirements, please contact the Stormwater Reviewers at (703) 228-3629.

            In June 2005, VDOT issued a Hydraulic Design Advisory (HDA 05-03) which included updated rainfall intensity information for Arlington County based on the recently released NOAA ATLAS 14 Rainfall Precipitation Frequency Data.  The following table is a summary of the 10-year and 100-year rainfall intensities for giving durations.  It is recommended that this data be used in design of products in Arlington County.  For more information, please refer to VDOT publication HDA 05-03 (16.2 KB) (PDF format).

     

     

    Arlington County Code and Forms

     

    Commonwealth of Virginia - Code of Virginia and Forms

     

     

     

    Floodplain Ordinance

     

            An area of Arlington County subject to the unusual and rapid accumulation of runoff, surface waters from any source and is relatively flat or low-land area adjoining a river, stream or water course  which maybe partially or completely inundated. 

     

    Arlington County Code and Forms

     

     

     

    Flood Insurance Rate MapsFlood Boundary and Floodway Mapsflooded area over trail
    FIRM MAP INDEX (604 KB)FLOODWAY MAP INDEX (544 KB)
    FIRM PANEL NO. 212250 0002B (1.7 MB)FLOODWAY PANEL NO. 212250 0002 (1.8 MB)
    FIRM PANEL NO. 212250 0004B (1.5 MB)FLOODWAY PANEL NO. 212250 0004 (1.6 MB)
    FIRM PANEL NO. 212250 0010B (2.6 MB)FLOODWAY PANEL NO. 212250 0010 (2.1 MB)
    FIRM PANEL NO. 212250 0017B (1.9 MB)FLOODWAY PANEL NO. 212250 0017 (1.7 MB)
    FIRM PANEL NO. 212250 0021B (3.1 MB)FLOODWAY PANEL NO. 212250 0021 (2.6 MB)
    FIRM PANEL NO. 212250 0022B (3.8 MB)FLOODWAY PANEL NO. 212250 0022 (3.1 MB)

     

     

    Federal Emergency Management Agency (FEMA) - Maps and Documents

     

     

     

     

    Erosion and Sediment Control Ordinance

     

             The establishment of requirements for the control of erosion and sedimentation, and procedures whereby these requirements shall be administered and enforced to converse the land, water, air and other natural resources of Arlington County and promote the public health and welfare of the people in the County.

    Arlington County Code and Forms

    Commonwealth of Virginia - Code of Virginia and Forms 

     


    Last Modified: May 02, 2012
    2100 Clarendon Blvd. Arlington, VA 22201 Tel: 703-228-3000 TTY: 703-228-4611