Description: Prince George's County Brownfield sites as determined by the State of Maryland's Department of the Environment. A brownfield site is a real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.
Service Item Id: 06fbc6d3fede45c591caa751635aab38
Copyright Text: For Internal Use Only. Feature class was acquired for Prince George's County use.
Description: Surface mining is defined as a type of mining operation where soil and rock covering a desired mineral deposit is removed. The delineation of surface mine activity in the county is based on property boundaries, as well as heads-up digitizing of portions of property utilized for the purpose of mining. The Environmental Planning Section within the Prince George's County Planning Department reviews records of surface mining permits.
Description: This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information. This data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.
Description: This plan was developed for Prince George's County in accordance with House Bill 2 (HB2), the Agricultural Stewardship Act of 2006. It requires that a county seeking state certification of its agricultural land preservation program identify Priority Preservation Area(s) (PPA), and update its comprehensive plan with a PPA element. Prince George's County is seeking certification. This plan is amended by the adoption of Plan 2035, per CR-26-2014, available at http://prince.he195.vps.webenabled.net/sites/default/files/documents/DC General Plan Final Resolution Signed% -6-2014.pdf
Description: This dataset contains impervious surfaces within Prince George's County. Impervious surfaces are attributed by type. All remaining surfaces that do not fall under one of the 'Type' categories are classified as pervious. Impervious Surface features derived as a byproduct of the photogrammetric capture of planimetric features, for use in general mapping at a scale of 1:1200, using stereo imagery taken to satisfy creation of 6 inch ground pixel resolution orthophotography. The original data was developed using photography taken from March of 2009. It was then updated in 2014 using photography taken during March/April of 2014, and 2017.
Description: Ecoregions by state were extracted from the seamless national shapefile and overlay Prince George's County. Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic phenomena, including geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology. The relative importance of each characteristic varies from one ecological region to another. A Roman numeral hierarchical scheme has been adopted for different levels for ecological regions. Level I is the coarsest level, dividing North America into 15 ecological regions. Level II divides the continent into 52 regions (Commission for Environmental Cooperation Working Group, 1997). At Level III, the continental United States contains 104 regions whereas the conterminous United States has 84 (U.S. Environmental Protection Agency, 2005). Level IV ecoregions are further subdivisions of Level III ecoregions. Methods used to define the ecoregions are explained in Omernik (1995, 2004), Omernik and others (2000), and Gallant and others (1989). Literature cited: Commission for Environmental Cooperation Working Group, 1997, Ecological regions of North America- toward a common perspective: Montreal, Commission for Environmental Cooperation, 71 p. Gallant, A. L., Whittier, T.R., Larsen, D.P., Omernik, J.M., and Hughes, R.M., 1989, Regionalization as a tool for managing environmental resources: Corvallis, Oregon, U.S. Environmental Protection Agency, EPA/600/3-89/060, 152p. Omernik, J.M., 1995, Ecoregions - a framework for environmental management, in Davis, W.S. and Simon, T.P., eds., Biological assessment and criteria-tools for water resource planning and decision making: Boca Raton, Florida, Lewis Publishers, p.49-62. Omernik, J.M., Chapman, S.S., Lillie, R.A., and Dumke, R.T., 2000, Ecoregions of Wisconsin: Transactions of the Wisconsin Academy of Science, Arts, and Letters, v. 88, p. 77-103. Omernik, J.M., 2004, Perspectives on the nature and definitions of ecological regions: Environmental Management, v. 34, Supplement 1, p. s27-s38. Comments and questions regarding Ecoregions should be addressed to Glenn Griffith, USGS, c/o US EPA., 200 SW 35th Street, Corvallis, OR 97333, (541)-754-4465, email:griffith.glenn@epa.gov Alternate: James Omernik, USGS, c/o US EPA, 200 SW 35th Street, Corvallis, OR 97333, (541)-754-4458, email:omernik.james@epa.gov