onemap_prod.SDEADMIN.streat

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Frequently-anticipated questions:


What does this data set describe?

Title: onemap_prod.SDEADMIN.streat
Abstract:
The NCREDC in conjunction with Hobbs, Upchurch & Associates developed the digital location and information of sewer treatment plants as mapped by individual system owners as required by contract. The data collected will facilitate planning, siting and impact analysis in the 70 individual counties of North Carolina. This file enables the user to make various county-level determinations when used in conjunction with other data layers. This data contains information on sewerage treatment plants as defined by NCREDC. Information includes: WWTP ID, original construction year, latest renovation date, permitted plant capacity, maximum daily flow, average daily flow, type of treatment, Sludge disposal technology, estimate of I/I and facility area in acres. Other coverages exist with sewer lines and other appurtenances.
Supplemental_Information:
The water and sewer data was collected in multiple phases. There is an associated owner and contact table (wsp2cont.dbf) for the phase 2 counties which include: Beaufort, Bertie, Bladen, Brunswick, Camden, Caswell, Chatham, Chowan, Columbus, Currituck, Dare, Duplin, Franklin, Gates, Granville, Greene, Halifax, Harnett, Hertford, Hoke, Hyde, Iredell, Jones, Lee, Lenoir, Lincoln, Martin, Montgomery, Moore, Northampton, Onslow, Pasquotank, Pender, Perquimans, Pitt, Richmond, Robeson, Sampson, Scotland, Stanly, Union, Vance, Warren, Washington and Wilson counties. 45 counties.
Phase 1 counties included: Alexander, Alleghany, Ashe, Avery, Buncombe, Burke, Caldwell, Cherokee, Clay, Cleveland, Davie, Forsyth, Graham, Haywood, Henderson, Jackson, Macon, Madison, McDowell, Mitchell, Polk, Rutherford, Stokes, Surry, Swain, Transylvania, Watauga, Wilkes, Yadkin, and Yancey counties. 30 counties.
For more information on the water and sewer systems attributes refer to: Geographic Data Content Standard for Water Distribution Systems and Sanitary Sewer Systems, Version 2.2; State of North Carolina; Center for Geographic Information and Analysis; 301 North Wilmington Street; Suite 700; Raleigh, NC 27601-2825; April 1997. This document is available online through the www.cgia.state.nc.us/gicc/index.html Geographic Information North Carolina, Geographic Information Coordinating Council Web Page</A>.
system filename: streat approx. filesize = 180 kb
Revisions and updates to this layer include: 1.) March 20, 2000: Addition of data for Carteret, Craven, and Johnston counties.
  1. How should this data set be cited?

    NCREDC - N.C. Rural Economic Development Center, 20000321, onemap_prod.SDEADMIN.streat: NC Center for Geographic Information & Analysis, Raleigh, North Carolina.

    Online Links:

    Other_Citation_Details: NCCGIA distributes this dataset

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -84.125521
    East_Bounding_Coordinate: -75.643411
    North_Bounding_Coordinate: 36.544194
    South_Bounding_Coordinate: 33.814369

  3. What does it look like?

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

    Calendar_Date: 1997
    Currentness_Reference: Data creation date

  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?

      Indirect_Spatial_Reference: None
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (244)

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

      Grid_Coordinate_System_Name: State Plane Coordinate System 1983
      State_Plane_Coordinate_System:
      SPCS_Zone_Identifier: 3200
      Lambert_Conformal_Conic:
      Standard_Parallel: 34.333333
      Standard_Parallel: 36.166667
      Longitude_of_Central_Meridian: -79.000000
      Latitude_of_Projection_Origin: 33.750000
      False_Easting: 609601.220000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.002048
      Ordinates (y-coordinates) are specified to the nearest 0.002048
      Planar coordinates are specified in meters

      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?

    onemap_prod.SDEADMIN.streat
    Sewer systems in 70 rural counties (Source: NCREDC)

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    SSTPSLUD
    Sludge disposal technology (Source: By owner / HUA)

    Frequency of measurement: None planned

    Brief description of sludge disposal treatment and handling

    PERIMETER
    Total perimeter in coverage units (Source: Software computed)

    Frequency of measurement: None planned

    Range of values
    Minimum:0
    Maximum:0
    Units:meters
    Resolution:0.001

    SSTPID
    system identification number (Source: Discharge #)

    Frequency of measurement: None planned

    Unique Identification Number

    SSTPLOC
    area name/location (Source: owner/HUA)

    Frequency of measurement: None planned

    Name of location is unique

    SSTPCSTR
    year of construction (Source: By owner / HUA)

    Frequency of measurement: None planned

    Date of construction is variable

    SSTPRENV
    latest year of renovation (Source: By owner / HUA)

    Frequency of measurement: None planned

    Renovation date is variable

    SSTPCPTY
    capacity in millions of gallons per day (Source: By owner/ HUA)

    Frequency of measurement: None planned

    Range of values
    Minimum:.025
    Maximum:999.999

    SSTPMDPR
    maximum daily flow in millions of gallons per day (Source: By owner / HUA)

    Frequency of measurement: None planned

    Range of values
    Minimum:.003
    Maximum:999.999

    SSTPADPR
    average daily flow in millions of gallons per day (Source: By owner / HUA)

    Frequency of measurement: None planned

    Range of values
    Minimum:.003
    Maximum:999.999

    SSTPTRMT
    type of treatment technology (Source: By owner / HUA)

    Frequency of measurement: None planned

    ValueDefinition
    STABILIZATION LAGOONTreatment in facultative lagoons using 90 day detension time capable of meeting limits of below 60ppm BOD and 90ppm TSS
    SECONDARY TREATMENTTreatment usually by mechanical means consisting of activated sludge or trickling filters followed by clarification and disinfection to meet limits of below 30ppm BOD and 30ppm TSS.
    ADVANCED SECONDARY TREATMENTTreatment usually by mechanical means consisting of activated sludge followed by clarification and disinfection to meet limits of below 20ppm BOD, 30ppm TSS and ammonia removal below 5ppm.
    TERTIARY TREATMENTTreatment usually by mechanical means consisting of activated sludge followed by clarification, filtration and disinfection to meet limits of below 5ppm BOD, 30ppm TSS and ammonia removal below 2ppm.
    SECONDARY TREATMENT PLUS NUTRIENT REMOVALTreatment usually by mechanical means consisting of activated sludge followed by clarification, chemical or biological nutrient removal and disinfection to meet limits of below 20ppm BOD, 30ppm TSS and ammonia removal below 5ppm. Also reduction of total nitrogen and total phosphorus to levels below 5ppm.
    TERTIARY TREATMENT PLUS NUTRIENT REMOVALTreatment usually by mechanical means consisting of activated sludge followed by clarification, chemical or biological nutrient removal and disinfection to meet limits of below 5ppm BOD, 30ppm TSS and ammonia removal below 2ppm. Also reduction of total nitrogen and total phosphorus to levels below 5ppm.
    LAND APPLICATIONwastewater treatment process that utilizes pre-treatment lagoons with 60-90 day detention time prior to spray irrigating to designated permitted area at permitted application rate based on the soil characteristics.
    CREATED WETLANDSany man made, engineered marsh-like which uses the chemical, physical and biological processes in nature such as emergent/submergent vegetation, animal life and open water to treat the wastewater.
    RAPID INFILTRATIONHigh rate application of wastewater to a pervious surface area such as sand beds or permitted sandy areas following primary sedimentation. (i.e. peculation)
    OTHERany mode of sewer treatment that does not fit the above defined standards.

    SSTPINFT
    estimate of Infiltration/Inflow measured at the plant in millions of gallons per day (Source: By owner / HUA)

    Frequency of measurement: None planned

    Range of values
    Minimum:000.000
    Maximum:999.999

    SSTPAREA
    approximate area of treatment facility in acres, excluding land application area extent (Source: By owner / HUA)

    Frequency of measurement: None planned

    Range of values
    Minimum:.500
    Maximum:999999.99

    STREAT_

    STREAT_ID

    POLYGONID

    SCALE

    ANGLE

    onemap_prod.SDEADMIN.streat.AREA

    Entity_and_Attribute_Overview:
    A point coverage depicting locations of sewer treatment plants in 70 rural counties. Fields including WTP ID, original construction year, latest renovation, permitted plant capacity, maximum daily flow, average daily flow, type of treatment, and facility area in acres.
    STREAT.PAT  Point Attribute Table
    COLUMN ITEM NAME WIDTH OUTPUT TYPE  DEC  DESCRIPTION
    1    AREA          4    12     F      3  Calculated Area
    5    PERIMETER     4    12     F      3  Calculated Perimeter
    9    STREAT#       4     5     B      -  Unique coverage feature number
    13   STREAT-ID     4     5     B      -  User defined ID
    17   SSTPID        7     7     C      -  System ID (Discharge Permit Number)
    24   SSTPLOC      20    20     C      -  Location/Area name
    44   SSTPCSTR      4     4     B      -  Original year of construction
    48   SSTPRENV      4     4     B      -  Latest year of renovation
    52   SSTPCPTY      4     7     F      3  Permitted capacity in MGD
    56   SSTPMDPR      4     7     F      3  Maximum daily flow in MGD
    60   SSTPADPR      4     7     F      3  Average daily flow in MGD
    64   SSTPTRMT    100   100     C      -  Treatment technology
    164  SSTPSLUD     50    50     C      -  Sludge disposal technology
    214  SSTPINFT      4     7     F      3  Estimate of I&I
    218  SSTPAREA      8     9     F      2  Approximate area at the treatment facility
    
    WSP2CONT.DBF Contact and Owner attribute table.
    COLUMN ITEM NAME WIDTH OUTPUT TYPE  DEC  DESCRIPTION
    1    COUNTY         3     3     C     -  County FIPS Code
    4    FEATID        13    13     C     -  Feature ID for linking tables
    17   SYSID          7     7     C     -  System Id number
    24   OWNERID        5     5     C     -  HUA defined ID Number
    29   OWNAME        50    50     C     -  Owner name
    79   CONTACT       48    48     C     -  Contact name
    127  PHONE         11    11     C     -  Contact phone number
    138  DATA         103   103     C     -  Type of information collected
    241  CITY          19    19     C     -  Contact city
    260  ST             4     4     C     -  Contact state
    264  ZIP            6     6     C     -  Contact zip code
    270  ENGINEER_N    40    40     C     -  Name of HUA engineer
    310  ENG_PHONE     12    12     C     -  HUA engineer phone number
    HUA is Hobbs, Upchurch & Associates
    
    This table"Owner and Contact Table" can be used by performing a join with the fields FeatID and The feature ID field with any one of the themes (ie: Intakes, Wsysa, Etc.) The information in this table will tell who HUA contacted and the types of data received from that person or system.
    Entity_and_Attribute_Detail_Citation:
    Geographic Data Content Standard for Water Distribution Systems and Sanitary Sewer Systems, Version 2.2; State of North Carolina; Center for Geographic Information and Analysis; 301 North Wilmington Street; Suite 700; Raleigh, NC 27601-2825; April 1997. This document is available online through the www.cgia.state.nc.us/gicc/index.html Geographic Information North Carolina, Geographic Information Coordinating Council Web Page</A>.


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?

    North Carolina Rural Economic Development Center
    
    Hobbs, Upchurch & Associates P.A.
    290 S.W. Broad St.
    Southern Pines, N.C. 28388
    910-692-5616 Phone
    910-692-7342 FAX
    
    Participating Counties
    
    NCCGIA Director, Karen Siderelis
    Database Administration, Zsolt Nagy
    Database Management, Ken Shaffer
    North Carolina Center for Geographic Information and Analysis
    Governor's Office
    Office of State Planning
    301 North Wilmington Street, Suite 700
    Raleigh, NC 27601-2825
    

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

    NCREDC
    4021 Carya Drive
    Raleigh, North Carolina 27601
    U.S.A.

    (919) 250-4314 (voice)
    (919)250-4325 (FAX)
    CHBOCK@MINDSPRING.COM

    Hours_of_Service: 8am to 5pm
    Contact_Instructions: Phone and electronic mail preferred


Why was the data set created?

This data was created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).


How was the data set created?

  1. From what previous works were the data drawn?

    None (source 1 of 1)
    System Owners and Hobbs, Upchurch, Unknown, Owner supplied system information: Varies, Varies.

    Other_Citation_Details:
    The source information and material dates vary by system. An associated "Owner and Contact Table" contains specific information on source materials supplied.
    Type_of_Source_Media: Varies
    Source_Contribution: Owner supplied/HUA located

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

    Date: 1997 (process 1 of 5)
    Sewer treatment plants were heads-up digitized onto state supplied base mapping.

    Person who carried out this activity:

    NCEDC
    4021 Carya Drive
    Raleigh, North Carolina 27601
    U.S.A.

    (919) 250-4314 (voice)
    (919)250-4325 (FAX)
    Chbock@Mindspring.com

    Hours_of_Service: 8:00AM - 5:00PM
    Contact_Instructions: Phone and electronic mail preferred
    Date: 1990 (process 2 of 5)
    Hobbs, Upchurch & Associates digitized/compiled maps supplied by the participating counties. Also all tabular data was input into the CGIA supplied data standard. All heads-up digitizing was performed in AutoCAD R12-14/ArcCAD with NC DOT supplied road centerlines and hydro. Digital files were then converted into ArcView 3.0 Shape files with the appropriate dBase information. The data was completed in NAD83 Meters. Once compiled, the data was delivered to John Soles at NCREDC for review and supplied to the appropriate officials for each county for review for accurateness.

    Person who carried out this activity:

    Hobbs, Upchurch & Associates
    Eddie Staley
    290 S.W. Broad St.
    Southern Pines, North Carolina 28388
    U.S.A.

    (910) 692-5616 (voice)
    (910) 692-7342 (FAX)
    huagis@pinehurst.net

    Hours_of_Service: 8:00AM - 5:00PM
    Contact_Instructions: Phone and electronic mail preferred
    Date: Feb-1998 (process 3 of 5)
    Sewer treatment plants were mappjoined into one statewide GIS coverage using ARC/INFO GIS software. On-screen review of the data and attributes was performed by a GIS analyst to make sure the processing did not change the data. The draft metadata supplied by Hobbs, Upchurch and Associates was finalized for inclusion into the Corporate Geographic Database. An additional table containing source data contact and system owner information was created by HUA and has been incorporated into the data available through CGIA.

    Person who carried out this activity:

    NC Center for Geographic Information and Analysis
    c/o David Giordano
    GIS Analyst
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    U.S.A.

    (919) 733-2090 (voice)
    (919) 715-0725 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:00AM - 5:00PM
    Contact_Instructions: Phone and electronic mail preferred
    (process 4 of 5)
    Metadata imported.

    Data sources used in this process:

    • C:\DOCUME~1\david\LOCALS~1\Temp\xml4AD.tmp

    (process 5 of 5)
    Dataset copied.

    Data sources used in this process:

    • Server=cgiatdb; Service=5151; Database=onemap_test; User=sdeadmin; Version=sde.DEFAULT

  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?

    Hobbs, Upchurch & Associates digitized sewer treatment plant locations from various maps and GPS files. All tabular data was supplied by the owner or received by Public Sewer Supply information. For more information on data sources and contacts, see the "Owner and Contact Table".

  2. How accurate are the geographic locations?

    Sewer treatment plants were heads-up digitized to match with the state supplied base mapping. In some cases actual GPS location points were used. The overall threshold however is 40 feet or less. All features were Verified by both HUA engineers as well as NCREDC for accuarcy. For more information on data sources and contacts, see the "Owner and Contact Table".

  3. How accurate are the heights or depths?

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

    This data layer represents the sewer treatment plant locations and tabular data supplied by the owner of each system. For more information on data sources and contacts, see the "Owner and Contact Table".

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

    Using ESRI's ArcCAD GIS software, the data set was built for nodal topology using the "build" command. Topology has not been edited since the last build or clean.


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 products derived form this data set should cite the following: The source of the Sewer Systems - sewer treatment plant data is the North Carolina Corporate Geographic Database. Earlier versions of this data set may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.

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

    NC Center for Geographic Information and Analysis
    Production Services
    301 North Wilmington Street, Suite 700
    Raleigh, North Carolina 27601-2825
    USA

    (919) 733-2090 (voice)
    (919) 715-0725 (FAX)
    dataq@cgia.state.nc.us

    Hours_of_Service: 8:30AM - 5:30PM
    Contact_Instructions:
    Phone and electronic mail preferred For current price information use a web browser: COST INFORMATION - <http://cgia.cgia.state.nc.us/cost.html>
  2. What's the catalog number I need to order this data set?

    Sanitary Sewer Systems - Treatment Plants

  3. What legal disclaimers am I supposed to read?

    NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost recovery basis.

  6. What hardware or software do I need in order to use the data set?

    All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: FORMAT/MEDIA INFORMATION - <http://cgia.cgia.state.nc.us/cost.html>


Who wrote the metadata?

Dates:
Last modified: 02-Oct-2006
Metadata author:
North Carolina Center for Geographic Information and Analysis
c/o REQUIRED: The person responsible for the metadata information.
Database Management
301 North Wilmington Street, Suite 700
Raleigh, North Carolina 27601-2825
USA

(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us

Hours_of_Service: 8:30AM - 5:30PM
Contact_Instructions: Phone and electronic mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.5 on Wed Aug 27 10:31:59 2008