| Resource Protection Area (RPA) Screening Tool (2010) | |
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Data format: SDE Feature Class File or table name: GISDBB.GISBROW.CB_RPA_SCREENING_TOOL_POLY Coordinate system: Lambert Conformal Conic Theme keywords: environment, inland waters, boundaries, Resource Protection Area (RPA), Chesapeake Bay Preservation Areas (CBPA) |
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Abstract:
The status of this data is PROPOSED
The RPA Screening Tool (Screening Tool) is a component of a screening method that is used by County staff to determine if a site-specific Resource Protection Area (RPA) delineation is required for projects that propose land disturbing activity in excess of 2,500 square feet, as outlined in Section 1222.08 of the Chesapeake Bay Preservation Ordinance. The Screening Tool depicts areas located within 200 feet of County basemap drains and basemap water features that have potential to be characterized as RPA due to the potential presence of water bodies with perennial flow and contiguous wetlands connected by surface flow to such water bodies.
Visit www.loudoun.gov/ChesapeakeBay for more information. Additional questions can also be directred to county staff through the Chesapeake Bay information line at 703-777-0655 or by email to ChesBay@loudoun.gov. |
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Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
The status of this data is PROPOSED The RPA Screening Tool (Screening Tool) is a component of a screening method that is used by County staff to determine if a site-specific Resource Protection Area (RPA) delineation is required for projects that propose land disturbing activity in excess of 2,500 square feet, as outlined in Section 1222.08 of the Chesapeake Bay Preservation Ordinance. The Screening Tool depicts areas located within 200 feet of County basemap drains and basemap water features that have potential to be characterized as RPA due to the potential presence of water bodies with perennial flow and contiguous wetlands connected by surface flow to such water bodies. Visit www.loudoun.gov/ChesapeakeBay for more information. Additional questions can also be directred to county staff through the Chesapeake Bay information line at 703-777-0655 or by email to ChesBay@loudoun.gov.
The Screening Tool is for information purposes only and is not a "legal description" of the full extent of the RPA. The County does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data are at the risk of the user.
The data is incomplete due to redacted areas corresponding to the Incorporated Towns and Dulles International Airport. Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data. Data are stored in the corporate ArcSDE Geodatabase as a polygon feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN (vertical datum, if applicable, NAVD88), US Survey foot units.
publication date
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user. These data were generated for use by Loudoun County and are available to the public. These data are intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data.
1 Harrison Street SE, 2nd floor
MS 60
Retention of attribute accuracy throughout the personal geodatabase or shapefile to ArcSDE geodatabase feature class coversion process was ensured by a manual or automatic QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have, on a record by record basis, identical attribution when comparing all concatenated fields to all the user-defined attribution.
Topologically clean
Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data.
Retention of coordinate accuracy throughout the personal geodatabase or shapefile to ArcSDE geodatabase feature class conversion process was ensured by a manual or automatic QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have the same record total, and on a record by record basis, area, perimeter, and length differential of less than +/- 0.5%.
Chesapeake Bay Preservation Act, Sections 10.1-2100 et seq., of the Code of Virginia
The Perennial Waterbody component of the CBPA is compiled using subsets of the Soil Drains, Soil Water Polygons, and (basemap) Waterbody data. This data is then buffered 100 feet to create the RPA. This is then incorporated into a countywide coverage using the county and town boundaries in order to define the areas in RMA and those that are Non-Jurisdictional.
Internal feature number.
ESRI
Type of Protection Area
Loudoun County
RMA/Possible RPA
Loudoun County, Department of Building and Development
Date that feature class was created or modified
Loudoun County
Source that created or edited feature class
Loudoun County
ot for public distribution. Internal User ID of editor creating or modifying feature class
Loduoun County
Feature geometry.
ESRI
Area of RPA feature
Loudoun County
Perimeter of RPA feature
Loudoun County
CW_UPD_SOURCE: Source that created or modified feature class
0 Undetermined 1 Legacy 2 County 3 Contract 4 Model
1 Harrison Street S.E., 2nd floor
MS 65
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user.
ESRI Personal Geodatabase Feature Class
ESRI Shapefile
AutoCad Digital Exchange File
Size limit: 4.5 GB. Visit our website at: http://www.loudoun.gov/omagi/index.htm, click on "OMAGI Documents and Information." Our "Products & Services" link will lead you to order forms and lists of available data. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information
1 Harrison Street SE, 2nd Floor
MS 65