MSW Sites

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Frequently-anticipated questions:

What does this data set describe?

Title: MSW Sites
Abstract:
This layer contains all permitted or registered landfills and associated Municipal Solid Waste (MSW) facilities for the State of Texas as of the publication date shown below. The dataset contains both closed and open landfills. The associated facilities represent various categories including transfer stations, waste processing facilities, and recyling centers. The type of facility is indicatd by the Facility Type (FACILITY_T) field. Landfills are represented by Facility Types 1 - 4. Type 2 and 3 are historical facility types that are no longer used for new permits.

The following represents the horizontal accuray of this dataset:

57% - based on DRGs (12 meter accuracy) 13% - address matching (25-meter accuracy) 30% - Coordinates reported by Operator (accuracy unknown)

Supplemental_Information:
For more information about Municipal Solid Waste at TCEQ, please visit the following link: <http://www.tceq.state.tx.us/nav/permits/msw.html>
  1. How should this data set be cited?

    Texas Commission on Environmental Quality, 20061128, MSW Sites.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -98.948355
    East_Bounding_Coordinate: -94.152424
    North_Bounding_Coordinate: 34.071667
    South_Bounding_Coordinate: 29.674947

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 17-May-2006
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (513)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Resolution: 1.000000
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    SDETrims.DBO.Eco_Landfills

    ACCESS_DES
    Access Description - verbal description of the location

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    PROG_ID
    The Permit or Registration Number of the Facility (Source: TCEQ)

    ValueDefinition
    1 - 9,999Permitted Solid Waste Facilities
    10,000 - 19,999Registered Sites for Beneficial Land Use of Sludge
    20,000 - 24,999Registered Sludge Haulers
    25,000 - 29,999Registered Tire Transporterseam
    30,000 - 39,999Illegal Sites and Transporters
    40,000 - 41,999Registered Transfer Stations
    42,000 - 42,999Recycling Facilities at Permitted Sites
    43,000 - 43,999Registered Liquid Waste Processing Facilities, Type 5GG
    44,000 - 46,999Tire Storage Sites
    47,000 - 47,999Notice of Intent to Operate A Composting Facility
    48,000 - 49,999Registered Beneficial Gas Recovery Facilities, Type 9GR
    50,000 - 51,000Medical Waste Transporters
    54,000 - 54,500On-Site Treaters, Special Waste from Health Related Facility on Mobile Vehicles
    55,000 - 55,200Medical Waste Self-Transporters
    60,000 - 60,500Medical Waste Collection Stations
    61,000 - 61,999Registered Mobile Liquid Waste Processors, Type 5GM
    62,000 - 62,999Enclosed Structure Over Closed Landfills
    63,000 - 64,999Liquid Mining Operations
    65,000 - 65,100Enclosed Structure Over Closed Landfills
    70,000 - 78,999Tire Storage Sites
    79,000 - 79,499Mobile Tire Transporters
    79,500 - 79,999Waste Tire Processors
    80,000 - 89,999Used Oil Collection Centers
    90,000 - 90,999Used Oil Marketers
    91,000 - 91,999Used Oil Recyclers
    92,000 - 94,999Used Oil Transporters
    > 99,000Incomplete Permit Applications

    AMEND

    LOC_GIN
    Unique ID stored in WWC database (Source: WWC Database)

    Range of values
    Minimum:0
    Maximum:1530934

    LOC_NAME
    Name of MSW Site (Source: WWC Database)

    ADDRESS

    CITY

    STATE

    ZIP

    ZIP4

    LAT_DD
    Latitude in Decimal Degrees (Source: TCEQ Spatial Data Dictionary)

    Range of values
    Minimum:25.93583
    Maximum:36.494734

    LONG_DD
    Longitude in Decimal Degrees (Source: TCEQ Spatial Data Dictionary)

    Range of values
    Minimum:-106.59344
    Maximum:-93.586095

    HORZ_METH
    A code defining the method used to obtain the reported coordinates (Source: TCEQ Spatial Data Dictionary)

    ValueDefinition
    ADDMAT_NUMAddress Matching - House Number
    DRGDigital Raster Graphic (Digital 7.5' USGS Topographic Map)
    UNKNOWNMethod Unknown

    HORZ_ACC
    Assessment of the horizontal accuracy of the reported latitude/longitude coordinate expressed in meters (Source: TCEQ Spatial Data Dictionary)

    HORZ_REF
    Horizontal Reference (Source: TCEQ Spatial Data Dictionary)

    ValueDefinition
    FAC_CENCenter of Facility
    FAC_NWNorthwest Corner of Facility
    FAC_NENortheast Corner of Facility
    FAC_SWSouthwest Corner of Facility
    FAC_SESoutheast Corner of Facility
    FAC_ENTRMain Entrance of Facility
    STRUC_CENCenter of Structure/Building
    STRUC_NWNorthwest Corner of Structure/Building
    STRUC_NENortheast Corner of Structure/Building
    STRUC_SWSouthwest Corner of Structure/Building
    STRUC_SESoutheast Corner of Structure/Building
    STRUC_ENTRMain Entrance of Structure/Building
    OTHEROther

    HORZ_DATE
    The date on which the horizontal coordinate was collected (Source: TCEQ Spatial Data Dictionary)

    Range of values
    Minimum:19750603
    Maximum:20050315

    HORZ_ORG
    Code representing the organization that measured the latitude/longitude (Source: TCEQ Spatial Data Dictionary)

    HORZ_DATUM
    Horizontal Reference Datum of the coordinates represented by the LATDD and LONGDD fields (Source: TCEQ Spatial Data Dictionary)

    ValueDefinition
    NAD27North American Datum of 1927
    NAD83North American Datum of 1983
    WGS84World Geodetic System of 1984
    UNKNOWNizontal Datum Unknown

    HORZ_DESC
    If the appropriate value cannot be found in the table of codes provided for the Horizontal Reference field, this field is to be used to describe the precise location of the coordinate within the facility (Source: TCEQ Spatial Data Dictionary)

    Facility_T
    Facility Type

    ValueDefinition
    1Sanitary Landfill, Daily Cover Required (Population Equivalent Served exceeds 5,000 people)
    2Sanitary Landfill, Weekly Cover Required (Population Equivalent Served is from 1,500 to 5,000 people)
    3Sanitary Landfill, Monthly Cover Required (Population Equivalent Served is less than 1,500 people)
    *AEArid Exempt Landfill, simplified liner and cover requirements in areas of low rainfall, Types 1-4 only.
    5Miscellaneous Solid Waste Processing Facility
    5ACMedical Waste Autoclave
    5GGGrease and Grit Trap Waste Processing Facility
    5GMMobile Grease/grit Trap Processing Facility
    5RCResource Recovery/composting Facility
    5REResource Recovery/waste-to-energy Facility (Including Refuse-derived Fuel Facility W/energy Recovery Capability)
    5RFResource Recovery/refuse-derived Fuel Facility Without Energy Recovery Capability
    5RRResource Recovery/recycling Facility
    5SGShredder/grinder Facility
    5TBTrench Burner Facility
    5TLLiquid Transfer Station
    5TSTransfer Station Facility
    5WBSolid Waste Bailing Facility
    5WISolid Waste Incineration Facility W/o Energy Recovery
    6Experimental Facility
    9GRMethane Gas Recovery from Inactive Landfill or Portion of Landfill
    9MEMaterial Extraction for Energy Recovery from Inactive Landfill
    CPUnknown code
    CRunknown code

    Facility_S
    Facility Status

    ValueDefinition
    Activefacility was operating as of date revised
    Closedfacility was not open and no longer accepting waste
    Inactivefacility was open but not actively accepting waste
    Missingfacility status information could not be obtained
    Not Constructedfacility initiated permitting process but was not constructed
    Post-Closurefacility is closed and continuing maintainence of final cover and gas and leachate monitoring

    Permit_Sta
    Permit Status

    ValueDefinition
    Deniedpermit to operate MSW facility was not granted by TCEQ or predecessor agencies
    Issuedpermit to operate MSW facility was granted by TCEQ or predecessor agencies
    Missingpermit status information could not be obtained
    Pendingpermit application to operate MSW facility was received but permit not yet issued
    Returned To Applicantpermit application was incomplete
    Revokedpermit to operate MSW facility was recinded, either voluntarily or through TCEQ enforcement action
    Supercededpermit to operate MSW facility was replaced by another permit
    Withdrawnapplicant requested termination of permit request

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Edward Block
    TCEQ

    512-239-6613 (voice)
    eblock@tceq.state.tx.us

Why was the data set created?

General purpose use; to support agency-wide policy decisions regarding municipal solid waste in the State of Texas.

How was the data set created?

  1. From what previous works were the data drawn?

    USGS (source 1 of 2)
    USGS, Unknown, Digital Raster Graphics (1:24k).

    Type_of_Source_Media: digital file
    Source_Scale_Denominator: 24000
    Source_Contribution: Primary reference for locating sites.

    GDT (source 2 of 2)
    Geographic Data Technology (GDT), 2002, Geographic Data Technology (GDT) - Roads.

    Type_of_Source_Media: digital file
    Source_Scale_Denominator: 24000
    Source_Contribution: secondary source

  2. How were the data generated, processed, and modified?

    Date: 1999 (process 1 of 3)
    TCEQ contracted with Southwest Texas State University (now Texas State University) to create a closed landfill inventory database. Two DBF files were created: permapp.dbf (permitted landfills) and unum.dbf (unauthorized landfills).

    Date: 2002 (process 2 of 3)
    With the assistance of interns, TCEQ created a new version of the layer to include all MSW sites, both active and inactive. A fresh copy of the data was extracted from the WWC (Wastewater Consolidation) database preserving the LOC_GIN field as a key so the data could be tied back to WWC. Geocoding was used to generate new coordinates. Only the highest quality geocoding results were used. The remaining sites were digitized over 1:24K USGS DRGs using a customized ArcGIS application at TCEQ. The previous landfills layer (created by SWT) was used as a reference to locate the sites not captured by the geocoding process.

    Date: 2005 (process 3 of 3)
    Staff form the Waste Permits Division (WPD) of TCEQ compared the existing dataset with the WWC database and extracted all additional MSW sites added to the WWC database since 2003. These were added to the MSW Sites layer. The previous version included two separate address fields: one from the WWC database and one that had been collected by the interns. These fields were reconciled by the WPD. Following the update, 166 points were found to be out-of-state. These outliers were removed until they can be fixed in upcoming versions. QAQC was performed on the dataset and several errors were corrected. A duplicative field called TYPE was removed. Metadata was created for the newly revised layer.

  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    All known attribute errors were fixed during the data review process.

  2. How accurate are the geographic locations?

    The data were collected from three different sources: DRGs (Digital Raster Graphics / USGS Topos), address matching, and coordinates received from operators. The horizontal accuracies for these sources are as follows.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    All sites were verified and are consistent the WWC database. 106 outliers were removed from the layer before publication. These bad coordinates will be fixed in subsequent versions and added back to the dataset.

  5. How consistent are the relationships among the observations, including topology?

    None.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None.
Use_Constraints:
Acknowledgement of the Texas Commission on Environmental Quality is appreciated on any products using this dataset.

  1. Who distributes the data set? (Distributor 1 of 1)

    Greg Smithhart
    Information Resources Division, TCEQ
    GIS Analyst

    512-239-0859 (voice)
    512-239-0888 (FAX)
    gsmithha@tceq.state.tx.us

    Hours_of_Service: M-F, 9-6
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 20-Aug-2007
Metadata author:
Edward Block
Waste Permits Division, TCEQ
REQUIRED: The city of the address., REQUIRED: The state or province of the address. REQUIRED: The ZIP or other postal code of the address.

512-239-6613 (voice)
eblock@tceq.state.tx.us

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Mon Aug 20 13:56:00 2007