Abstract: A system for the determination of the percentage of area of a parcel of land available for development or preservation which comprises at least one privately gathered data base having at least one file relating to at least one geographic area and its privately gathered corresponding map, physical, geographic, geologic, edaphic, and flora parameters present in and relating to said geographic area; a Software Decision Control Framework connected to the privately gathered data base; a Geographic Information System connected to and interacting with both the Software Decision Control Framework and the privately gathered data base; a network connected and interfaced to the Software Decision Control Framework and at least one data base interfaced with the network, the data base comprising physical, geographic, geologic, edaphic and flora parameters present in and relating to various geographic areas worldwide, whereby the Software Decision Control Framework interacts with the privately gathered data base, the Geogra

Abstract: A device for the early detection and advanced warning that waste is backing up in a waste pipe line comprising: a tubular body member having an open lower portion, a central hollow core extending axially there through, and a closed upper portion. The open lower portion is dimensionally sized and configured to be removably yet sealably fitted and fixed into the waste pipe line. The closed upper portion is provided with a vent.