ARCDBA.Ches_Bay_Critical_Overlay_Poly

The locations where development is subject to the requirements of not only the Zoning Ordinance, Subtitle 27, but  also the regulations found in the Prince George's County Chesapeake Bay Critical Area Program Conservation Manual for environmentally sensitive property located in Prince George's County, Maryland.

Represents property whose development is regulated in order to preserve and enhance the quality of water entering the Chesapeake Bay, to protect wildlife resources, and to enhance recreational opportunities.  Provisions for the handling of these areas are cited in The County Code, Part II, Title 17, and also in Subtitle 27 of The Zoning Ordinance for Prince George's County, Maryland.
	
The locations are represented as an overlay consisting of three zones that are superimposed over the underlying conventional zones. The zones associated with this featureclass are "R-C-O" (Resource Conservation Overlay)," L-D-O" (Limited Development Overlay), and "I-D-O" (Intense Development Overlay). Attributes of this featureclass are coded under the Field Names, Domains, Default Values, and Possible Values reflected in the table below.
		
	      FIELD NAME	        DOMAIN	  DEFAULT VALUE	   POSSIBLE VALUES
1	    OVERLAY_ZONE    dCBCA	     R-C-O	                R-C-O
                                                                        L-D-O
                                                                        I-D-O
2	    PLAN_NAME			                                              Cheaspeake Bay Critical Area (CBCA)
3	    RESOLUTION			                                             <The number of the approving resolution> e.g. 
                                                                        CR-95-1988, A-9849, CBCA-1-99
4	    ADOPTION_DATE			                                        <e.g. 9/27/1988>

The layer historically evolved as follows:

- Adopted in 1988 by CR-95-88 and captured on WSSC grid based CBCA half sheet Mylars at 1:2400 scale.
- All overlay layers were captured in GIS together as one Countywide Layer in ArcInfo in 1997 by CENTECH Group Inc. with subsequent amendments incorporated.
- In November of 2000 all Overlay layers were stripped out into their own countywide layers due to the complexity of attributing the increasing number of overlapping features due to new overlay layers being implemented.
- Data migration 2006-07, to ArcGIS 9.1 geodatabase and a SDE seamless Ches_Bay_Critical_Overlay_Poly layer was created. The data was captured at a reference scale of 1:2400.