"PA061"|"Huntingdon County, Pennsylvania"|1|03/02/2004 11:02:17|1|03/02/2004 11:02:17|02/10/2004 05:34:40|"fully certified"||" U.S. Department of Agriculture, Natural Resources Conservation Service 20040302 Soil Survey Geographic (SSURGO) database for Huntingdon County, Pennsylvania Fort Worth, Texas U.S. Department of Agriculture, Natural Resources Conservation Service pa061URL:http://SoilDataMart.nrcs.usda.gov/ 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. SSURGO depicts information about the kinds and distribution of soils on the landscape. The soil map and data used in the SSURGO product were prepared by soil scientists as part of the National Cooperative Soil Survey. Digital versions of hydrography, cultural features, and other associated layers that are not part of the SSURGO data set may be available from the primary organization listed in the Point of Contact. 2004022720040227publication dateCompleteAs needed-78.257-77.67740.74440.062Nonesoil surveysoilsSoil Survey GeographicSSURGOUSGS Geographic Names Information System (GNIS)PennsylvaniaHuntingdon CountyAlexandria QuadrangleAllensville QuadrangleAughwick QuadrangleBarrville QuadrangleBlairs Mills QuadrangleBurnt Cabins QuadrangleButler Knob QuadrangleCassville QuadrangleDonation QuadrangleDoylesburg QuadrangleEntriken QuadrangleFannettsburg QuadrangleFranklinville QuadrangleHuntingdon QuadrangleHustontown QuadrangleMartinsburg QuadrangleMcAlevys Fort QuadrangleMount Union QuadrangleNewton Hamilton QuadrangleOrbisonia QuadranglePine Grove Mills QuadrangleSaltillo QuadrangleSaxton QuadrangleShade Gap QuadrangleSpruce Creek QuadrangleTyrone QuadrangleWilliamsburg QuadrangleNone The U.S. Department of Agriculture, Natural Resources Conservation Service, should be acknowledged as the data source in products derived from these data. This data set is not designed for use as a primary regulatory tool in permitting or citing decisions, but may be used as a reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not perform any evaluations of these maps for purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than at which they were originally mapped can cause misinterpretation of the data. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The depicted soil boundaries, interpretations, and analysis derived from them do not eliminate the need for onsite sampling, testing, and detailed study of specific sites for intensive uses. Thus, these data and their interpretations are intended for planning purposes only. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data. U.S. Department of Agriculture, Natural Resources Conservation ServiceState Soil Scientistmailing address
USDA - Natural Resources Conservation Service
Pennsylvania State Office
One Credit Union Place, Suite 340
HarrisburgPA17110-2993
717-237-2207ed.white@pa.usda.gov
Attribute accuracy is tested by manual comparison of the source with hard copy plots and/or symbolized display of the map data on an interactive computer graphic system. Selected attributes that cannot be visually verified on plots or on screen are interactively queried and verified on screen. In addition, the attributes are tested against a master set of valid attributes. All attribute data conform to the attribute codes in the signed classification and correlation document and amendment(s). Certain node/geometry and topology GT- polygon/chain relationships are collected or generated to satisfy topological requirements (the GT-polygon corresponds to the soil delineation). Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout, and the chains representing the limits of the file are free of gaps. The tests of logical consistency are performed using vendor software. All internal polygons are tested for closure with vendor software and are checked on hard copy plots. All data are checked for common soil lines (i.e., adjacent polygons with the same label). Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. The Soil Survey of Huntingdon County, Pennsylvania is edge matched to the adjacent SSURGO certified Pennsylvania Soil Surveys of Blair County, Bedford County, Fulton County and Franklin County. Most of the feature edges in Blair County and Bedford County surveys match the feature edges in Huntingdon County. The feature labels and descriptive attributes do not match. The soil survey area boundary for Huntingdon County matches the adjacent SSURGO certified area boundaries. A map unit is a collection of areas defined and named in terms of their soil components or miscellaneous areas or both. Each map unit differs in some respect from all others in a survey area and each map unit has a symbol that uniquely identifies the map unit on a soil map. Each individual area, point, or line so identified on the map is a delineation. Soil Scientists identify small areas of soils or miscellaneous areas that have properties and behavior significantly different than the named soils in the surrounding map unit. These minor components may be indicated as special features. If they have a minimal effect on use and management, or could not be precisely located, they may not be indicated on the map. A map unit has specified kinds of soils or miscellaneous areas (map unit components), each with a designated range in proportionate extent. Map units include one or more kinds of soil or miscellaneous area. Miscellaneous areas are areas that have little or no recognizable soil. Specific National Cooperative Soil Survey standards and procedures were used in the classification of soils, design and name of map units, and location of special soil features. These standards are outlined in Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, NRCS; Agricultural Handbook 436, Soil Taxonomy, 1995, USDA, NRCS; and all Amendments; Keys to Soil Taxonomy, (current issue) USDA, NRCS; National Soil Survey Handbook, title 430-VI,(current issue) USDA, NRCS. The actual composition and interpretive purity of the map unit delineations were based on data collected by scientists during the course of preparing the soil maps. Adherence to National Cooperative Soil Survey standards and procedures is based on peer review, quality control, and quality assurance. Quality control is outlined in the memorandum of understanding for the soil survey area and in documents that reside with the Natural Resources Conservation Service state soil scientist. Four kinds of map units are used in soil surveys: consociations, complexes, associations, and undifferentiated groups. Consociations - Consociations are named for the dominant soil. In a consociation, delineated areas use a single name from the dominant component in the map unit. Dissimilar components are minor in extent. The soil component in a consociation may be identified at any taxonomic level. Soil series is the lowest taxonomic level. A consociation that is named as a miscellaneous area is dominantly that kind of area and minor components do not significantly affect the use of the map unit. The total amount of dissimilar inclusions of other components in a map unit generally does not exceed about 15 percent if limiting and 25 percent if nonlimiting. A single component of a dissimilar limiting inclusion generally does not exceed 10 percent if very contrasting. Complexes and associations - Complexes and associations consist of two or more dissimilar components that occur in a regularly repeating pattern. The total amount of other dissimilar components is minor extent. The following arbitrary rule determines whether complex or association is used in the name. The major components of an association can be separated at the scale of mapping. In either case, because the major components are sufficiently different in morphology or behavior, the map unit cannot be called a consociation. In each delineation of a complex or an association, each major component is normally present though their proportions may vary appreciably from one delineation to another. The total amount of inclusions in a map unit that are dissimilar to any of the major components does not exceed 15 percent if limiting and 25 percent if nonlimiting. A single kind of dissimilar limiting inclusion usually does not exceed 10 percent. Undifferentiated groups - Undifferentiated groups consist of two or more components that are not consistently associated geographically and, therefore, do not always occur together in the same map delineation. These components are included in the same named map unit because their use and management are the same or very similar for common uses. Generally they are grouped together because some common feature, such as steepness, stoniness, or flooding, determines their use and management. If two or more additional map units would serve no useful purpose, they may be included in the same unit. Each delineation has at least one of the major components, and some may have all of them. The same principles regarding the proportion of minor components that apply to consociations also apply to undifferentiated groups. The same principles regarding proportion of inclusion apply to undifferentiated groups as to consociations. Minimum documentation consists of three complete soil profile descriptions that are collected for each soil added to the legend, one additional per 3,000 acres mapped; three 10 observation transects for each map unit, one additional 10 point transect per 3,000 acres. A defined standard or level of confidence in the interpretive purity of the map unit delineations is attained by adjusting the kind and intensity of field investigations. Field investigations and data collection are carried out in sufficient detail to name map units and to identify accurately and consistently areas of about 5 acres. The accuracy of these digital data is based upon their compilation to base maps that meet National Map Accuracy Standards at a scale of 1 inch equals 1,000 feet. The difference in positional accuracy between the soil boundaries and special soil features locations in the field and their digitized map locations is unknown. The locational accuracy of soil delineations on the ground varies with the transition between map units. For example, on long gently sloping landscapes the transition occurs gradually over many feet. Where landscapes change abruptly from steep to level, the transition will be very narrow. Soil delineation boundaries and special soil features generally were digitized within 0.01 inch of their locations on the digitizing source. The digital map elements are edge matched between data sets. The data along each quadrangle edge are matched against the data for the adjacent quadrangle. Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. U.S. Department of Agriculture, Soil Conservation Service 1978Soil Survey for Huntingdon County, PennsylvaniaatlasWashington, DCU.S. Government Printing Office20000paper1978publication dateSCS1 basic reference material about soils and landscapes U.S. Department of Agriculture, Natural Resources Conservation Service unpublished materialpublication annotation overlaysmap20000stable-base material1978publication date of the soil surveyNRCS1 final publication negatives used to develop ratioed film positives U.S. Department of Agriculture, Natural Resources Conservation Service unpublished material ratioed film positives of the publication annotation overlays map24000stable-base material1978publication date of the soil surveyNRCS2reference material for line placementU.S. Geological Survey1971-1998multiple 7.5 minute topographic quadranglesmapReston, VirginiaU.S. Geological Survey24000paper19711998publication dateUSGS1landscape shape, aspect, and slope referenceU.S. Geological Survey1998multiple digital orthophotograph quadrangles (DOQs)remotely sensed imageReston, VirginiaU.S. Geological Survey24000stable-base material19921994image source dateUSGS2base maps for compilation U.S. Department of Agriculture, Natural Resources Conservation Service unpublished materialmultiple annotated compilation overlaysmap24000stable-base material20002002dates of compilationNRCS3 stable-base compilation sheets containing soil delineations and special feature locations U.S. Department of Agriculture, Natural Resources Conservation Service unpublished materialmultiple characterization and statistical datamap24000paper2003download dateNRCS4 attribute information for soil map unit delineations, special feature locations, and data on soil properties U.S. Department of Agriculture, Natural Resources Conservation Service 2003 National Soil Information System (NASIS) database for Huntingdon County, Pennsylvania tabular digital dataFort Collins, Colorado U.S. Department of Agriculture, Natural Resources Conservation Service, Information Technology Center online2003export certification dateNRCS5 tabular soil property data linked to spatial soil data U.S. Department of Agriculture, Natural Resources Conservation Service 2004National Soil Information System (NASIS) data baseunknownFort Collins, Colorado U.S. Department of Agriculture, Natural Resources Conservation Service database20042004publication dateNASISattribute (tabular) information The Soil Survey for Huntingdon County, Pennsylvania, published in 1978 at a scale of 1:20000 was considered to be an acceptable compilation source by Pennsylvania Natural Resources Conservation Service (NRCS) soil scientists. Ratioed film positives of the publication annotation overlays were produced at the scale of 1:24000. The NRCS soil scientists began compiling the soil delineations for Huntingdon County in 2000. The soil boundaries were manually compiled on a stable-base film registered to a full 7.5 minute quadrangle orthophotograph by photographic interpretation from orthophotographs, topographic quadrangles, and by using the ratioed film positives of the published soil survey as a reference for line placement. The compilation was reviewed by the staff at the Major Land Resource Area (MLRA) Office in Morgantown, West Virginia. The MLRA Office Leader certified the map compilation for Huntingdon County on March 22, 2002. SCS1, NRCS1, NRCS2, USGS1, USGS22002 The annotated compilation overlays were raster scanned by Midwest Graphics Inc. at 300 dpi on a drum scanner. Four control points corresponding to the four corners of the quadrangle were used for registration during data collection. The soil data development, including raster editing, map neatline development, vector conversion, labeling, edgematching and vector editing were done by the soil scientists and cartographic technicians at the Pennsylvania NRCS Map Compilation Center with the LT4X software. The cleaned vector files were then transferred into the ARC/INFO Version 8.0 software for final plotting, edit checks, and error analysis. The quadrangle format was then joined together to form a seamless county coverage. The special soil features were manually digitized using ARC/INFO. Polygon attributes were checked versus the correlation legend. The soil boundaries for the streams and water bodies were evaluated and adjusted to fit the Digital Orthophotograph Quadrangles (DOQs). The limit of the soil survey was also adjusted to match the DOQ imagery. The adjacent soil surveys in digital format were joined, edited, and clipped out to provide a common county boundary between the soil surveys. Statistics on map unit acreage was generated and checked with the correlation legend and tabular data. Major and minor code pairs were assigned and checked versus the correlation legend and tabular data order. The county coverage was split out on mathematical quadrangle boundaries. The spatial data were written to Digital Line Graph (DLG) optional format 3 from ARC/INFO Version 8.0 with the ARCDLG command. The soil scientists and cartographic technicians at the Pennsylvania NRCS Map Compilation Center did a 100 percent quality review of the digitized product. The MLRA Office Leader and the Acting State Conservationist for Pennsylvania signed the Soil Survey Geographic Data Certification in August, 2003. The digital maps of the soil lines and special features were sent to the NRCS Michigan Digitizing Unit (MIDU) in East Lansing, Michigan. NRCS3, NRCS4, USGS22003 The National Soil Information System (NASIS) database was developed by the NRCS soil scientists according to national standards. The tabular data containing the soil attributes and interpretations were initially down-loaded from the NASIS database on September 15, 2003. The soil scientists at the Map Compilation and Digitizing Center generated the statistics on map unit acreages in the spatial data. The staff checked the map unit symbols in the spatial data against the correlation document and used the map unit acreages of the spatial data as a guide to populate the NASIS database. NRCS52003 The DLG-3 Optional format files for the soils and the special features were imported into the ARC/INFO Version 7.2.1 software. The MIDU staff checked the data with a set of ARC Macro Language (AML) programs developed by the NRCS National Cartography and Geospatial Center (NCGC) in Fort Worth, Texas. The quadrangle coverages were processed using the Revised October 1998 SSURGO Evaluation AML programs. These ARC/INFO programs identified areas within the coverages that needed revision. The data were edited. A 10 percent checkplot review was done by the staff at the Morgantown MLRA Office. The staff at the Pennsylvania NRCS Map Compilation and Digitizing Center and the Morgantown MLRA Office also reviewed plots of the county joins. The county joins review facilitated correct, acceptable joins between Westmoreland and the surrounding counties. Pennsylvania NRCS soil scientists supplied the SSURGO download from NASIS. The minor codes in the soil coverages were renamed to link the map units in the spatial data to the NASIS database. New DLG files were written from the updated coverages for Huntingdon with ARC/INFO Version 7.2.1 according to SSURGO standards. Upon successful completion of the SSURGO Evaluation, the DLG files and the SSURGO download from NASIS were processed with the revised July 2002 Distribution AML programs provided by NCGC. The soil survey area symbol was added to each soil feature with the att_check.aml program. The county coverages and the metadata were electronically transferred to the NRCS Staging Server to be joined with the tabular data. NRCS52004 The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp. NASIS20040302 The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change. NASIS20040302VectorDecimal degrees0.00000010.0000001North American Datum of 1983Geodetic Reference System 806378137.000000298.257222Special Soil Features Special Soil Features represent soil, miscellaneous area, or landform features that are too small to be digitized as soil delineations (area features). Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.Special Soil Features Codes Special Soil Features labels represent specific Special Soil Features. These features are identified with a descriptive label. The label is assigned to the point or line assigned to represent the feature on maps. Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS; National Soil Survey Handbook, Title 430-VI, part 647 (current issue), USDA, NRCS. Classification and Correlation of the Soils of Huntingdon County, Pennsylvania U.S. Department of Agriculture, Natural Resources Conservation Service Map Unit Delineations are closed polygons that may be dominated by a single soil or miscellaneous area component plus allowable similar or dissimilar soils, or they can be geographic mixtures of groups of soils or soils and miscellaneous areas. The map unit symbol uniquely identifies each closed map unit delineation. Each symbol corresponds to a map unit name. The map unit key is used to link to information in the National Soil Information System tables. Map Unit Delineations are described by the National Soil Information System database. This attribute database gives the proportionate extent of the component soils and the properties for each soil. The database contains both estimated and measured data on the physical and chemical soil properties and soil interpretations for engineering, water management, recreation, agronomic, woodland, range, and wildlife uses of the soil. The National Soil Information System database contains static metadata. It documents the data structure and includes such information as what tables, columns, indexes, and relationships are defined as well as a variety of attributes of each of these database objects. Attributes include table and column descriptions and detailed domain information. The National Soil Information System database also contains a distribution metadata. It records the criteria used for selecting map units and components for inclusion in the set of distributed data. Special features are described in the feature table. It includes an area symbol, feature label, feature name, and feature description for each special and ad hoc feature in the survey area. Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Agricultural Handbook 436, 1999, USDA, SCS. Keys to Soil Taxonomy (current issue), USDA, SCS. National Soil Survey Handbook, Title 430-VI, part 647 (current issue), USDA, NRCS. Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS. U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center mailing and physical address
501 West Felix Street, Building 23, P.O. Box 6567
Fort WorthTexas76115
800 672 5559202 720 2600817 509 3469
Huntingdon County, Pennsylvania SSURGO Although these data have been processed successfully on a computer system at the U.S. Department of Agriculture, no warranty expressed or implied is made by the Agency regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. The U.S. Department of Agriculture will warrant the delivery of this product in computer readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Request for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site. The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) ArcView shapefilespatialWinZip or equivalent23.7 URL:http://SoilDataMart.nrcs.usda.gov/Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.ARC/INFO coveragespatialWinZip or equivalent23.7 URL:http://SoilDataMart.nrcs.usda.gov/Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.ARC/INFO interchange filespatialWinZip or equivalent23.7 URL:http://SoilDataMart.nrcs.usda.gov/Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.ASCIIkeys and attributesWinZip or equivalent9.2URL:http://SoilDataMart.nrcs.usda.gov/Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.There is currently no direct charge for requesting data or for retrieval via FTP.Visit the above mentioned Internet Web Site, select state or territory, then select individual soil survey area of interest. Spatial line data and locations of special feature symbols are in ESRI ArcGIS (ArcView,ArcInfo) shapefile, coverage and interchange (i.e., export) formats. The National Soil Information System attribute soil data are available in variable length, pipe delimited, ASCII file format.Typically within four hours
20040512U.S. Department of Agriculture, Natural Resources Conservation ServiceState Soil Scientistmailing address
USDA - Natural Resources Conservation Service
Pennsylvania State Office
One Credit Union Place, Suite 340
HarrisburgPA17110-2993
717-237-2207ed.white@pa.usda.gov
Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998
"|"14674"