US Environmental Protection Agency (EPA), Office of Water 19980126 US EPA WATER QUALITY INFORMATION 20010000 SHAPE http://www.epa.gov/ost/basins US Environmental Protection Agency (EPA), Office of Water This dataset contains locations of monitoring stations and statistical summaries of water quality monitoring for 47 physical and chemical-related parameters. This data set was prepared to support the U.S. EPA BASINS Better Assessment Science Integrating Point and Nonpoint Sources System. The BASINS Water Quality Monitoring and Data Summaries for the conterminous U.S. are created by retrieving the source data from the STORET database using the STORET MEAN program. Monitoring stations characterized as ambient stream, lake, reservoir, canal, estuary or ocean were selected. Summary statistics were computed by the program by station for 5year intervals from 19701994 and for the period from 19951997. Statistics include number of observations, standard deviation, mean, 15th, 25th, 50th, 75th and 85th percentiles. A BASINS water quality station ID was assigned to each station in order to facilitate links and joins within BASINS between station data and the monitoring data summary. U.S. Environmental Protection Agency (1992). "Office of Water Environmental and Program Information Systems Compendium", Office of Water, U.S. EPA, Washington, D.C. 19980126 ground condition Complete Irregular -87.429040 -79.872251 30.983191 24.492815 NONE Florida Southeast United States Water Quality Monitoring Stations NONE 1990's environmentISO 19115 Topic CategoryinlandWaters NONE THE DATA INCLUDED IN THIS APPLICATION ARE BASED ON INTERPRETATION OF AVAILABLE INFORMATION AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. Scale is an important factor in data usage. Certain scale data sets are not suitable for some projects, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale data sets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale data sets are recommended for projects that are at the multi-county or regional level. 1:250000 scale data sets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: http://www.geoplan.ufl.edu/education.html For more information, visit: http://www.epa.gov/ost/basins US Environmental Protection Agency, Office of Water 19980126 Unavailable Map The coverage feature attribute table contains the primary attributes of the monitoring stations. The related tables WQXXXX, contain the statistical summaries for these stations. The WQPARM and WQCRIT tables contains the STORET parameter codes and definitions. This data set provides statistical summaries of water quality monitoring for 47 physical and chemicalrelated parameters. The parameter specific statistics were computed by station for 5year intervals from 1970 to 1994 and a three year interval from 1995 to 1997. The data are extracted from the U.S. EPA Storage and Retrieval of US Waters Parametric Data (STORET) which is contributed by a number of organizations including federal, state, interstate agencies, universities, contractors, individuals and water laboratories. Data updates are performed weekly. Each provider of data is responsible for the data it submits to STORET. For distribution with BASINS v.2.0, the spatial attributes of the database were prepared in Arcview shape file format while selected relational attributes were prepared in Arcview DBF file format. Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. 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 the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s." Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. 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 the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s." US Environmental Protection Agency, Office of Water 19980126 Unavailable Map N/A Map 19980126 ground condition USEPA Data representing locations of monitoring stations and statistical summaries of water quality monitoring for 47 physical and chemicalrelated parameters. The process step describes, in general, the process used in the production of data sets. The originating agencies created the original spatial coverage. GeoPlan, during the QA/QC process included the following aspects: (1) Reprojected data to FGDL Albers (2) Set Precision to DOUBLE (3) Set Tolerances to FGDL Standards. 20000000 Albers Conical Equal Area 24.000000 31.500000 -84.000000 24.000000 400000.00000 0.00000 coordinate pair 0.002048 0.002048 METERS D_North_American_1983_HARN GRS1980 6378137.000000 298.257222 EPAWQ.DBF Database File None ID BASINS assigned unique station number (relate item) EPA record Unknown STATION Station code Same Unknown AGENCY Agency code Same Unknown LOCATION Description of location Same Unknown CU Cataloging unit code Same Unknown SEG Reach file v1 segment number (FGDL has Reach File v.3 EPARR3) Same Unknown MILEP Reach file v1 mile point (FGDL has Reach File v.3 EPARR3) Same Unknown ONOFF On/off reach indicator Same Unknown COUNTY County name coordinate Same Unknown STFIPS State FIPS code Same Unknown STATE State Postal Abbreviation Same Unknown LONG Longitude Same Unknown LAT Latitude Same Unknown TYPE Station type Same Unknown STCOFIPS State and County FIPS Code Unknown Unknown BWQID BASINS assigned unique station number Same Unknown BCU BASINS assigned cataloging unit Same Unknown WRS1 BASINS internal field Same Unknown WRS2 BASINS internal field Same Unknown WQ70_74.DBF Related database file which consists of the: Water Quality observations related tables that contain estimated information of chemicals and toxins between 1970 and 1974 None ID BASINS assigned unique station number (relate item) Same Unknown AGENCY Agency code Same Unknown LOCATION Description of location Same Unknown BWQID BASINS assigned unique station number Same Unknown PARM_CODE EPA STORET parameter code (relate item) Same Unknown NO_OBS Number of observations Same Unknown MEAN Mean value Same Unknown A15TH_P 15th percentile value Same Unknown A25TH_P 25th percentile value Same Unknown A50TH_P 50th percentile value Same Unknown A75TH_P 75th percentile value Same Unknown A85TH_P 85th percentile value Same Unknown STD Standard deviation Same Unknown BCU BASINS assigned cataloging unit code Same Unknown PARM_NAME Parameter name Same Unknown SAMPLE_TYP Sample type Same Unknown UNITS UNITS Same Unknown UPREFLVL Upper reference level Same Unknown LWREFLVL Lower reference level Same Unknown UNKNOWN Type of standard Same Unknown REF_LVLSRC Reference level source Same Unknown WQ75_79.DBF Water Quality observations related tables that contain estimated information of chemicals and toxins between 1975 and 1979. "Attributes for each related table are identicle and have already been listed in the WQ70_74.DBF. Please refer to that table for definitions, or visit: http://www.epa.gov/ost/basins for more information." None WQ80_84.DBF Water Quality observations related tables that contain estimated information of chemicals and toxins between 1980 and 1984. "Attributes for each related table are identicle and have already been listed in the WQ70_74.DBF. Please refer to that table for definitions, or visit: http://www.epa.gov/ost/basins for more information." None WQ85_89.DBF Water Quality observations related tables that contain estimated information of chemicals and toxins between 1985 and 1989. "Attributes for each related table are identicle and have already been listed in the WQ70_74.DBF. Please refer to that table for definitions, or visit: http://www.epa.gov/ost/basins for more information." None WQ90_94.DBF Water Quality observations related tables that contain estimated information of chemicals and toxins between 1990 and 1994. "Attributes for each related table are identicle and have already been listed in the WQ70_74.DBF. Please refer to that table for definitions, or visit: http://www.epa.gov/ost/basins for more information." None WQ95_97.DBF Water Quality observations related tables that contain estimated information of chemicals and toxins between 1995 and 1997. "Attributes for each related table are identicle and have already been listed in the WQ70_74.DBF. Please refer to that table for definitions, or visit: http://www.epa.gov/ost/basins for more information." None WQPARM.DBF Water Quality parameters table None WQCRIT.DBF This table contains information on specific toxins and chemicals but was not documented by EPA. None Operator FLORIDA GEOGRAPHIC DATA LIBRARY Physical
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