Phase II Stormwater Reference Layer, North Carolina, 2008

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What does this data set describe?

Title: Phase II Stormwater Reference Layer, North Carolina, 2008
Abstract:
The NC Center for Geographic Information and Analysis collaborated with the NC Division of Water Quality to develop a geospatial representation of stormwater permitting responsibility across the state. This reference layer represents permitting (local, state, multiple, or none) based on Phase II stormwater legislation and rules as well as other state and local programs that have stormwater requirements. This dataset is based on the best available datasets as of the publication date. This dataset does not include the shoreline, instead using mapped boundaries of all of North Carolina's counties as a base layer.
Supplemental_Information:

Revisions to this layer include: 11/07/07: 1.) Clarified post-construction stormwater authority in cities with Phase II exemptions. Updated records to reflect recent delegations of post-construction permitting authority to Gaston County. Updated areas within ETJ of Winston-Salem and Raleigh that are under state, not local, authority.
7/9/2007: 8.) Corrected information for WS-IV areas in Pender County; Coastal State SW permitting program also applies (FIDs #379 & 464). 7.) Corrected information for WS-III area in Dare County; Coastal State SW permitting program also applies (FID #272). 6.) Corrected information for WS-IV Critical Areas in Camden/Pasquotank Counties; Coastal State SW permitting program also applies (FIDs #354, 378). 5.) Modified PERMITTING and CONTACT fields for all Phase II City ETJs *except for* Raleigh, Winston-Salem, and Charlotte (whose permits don't include the ETJ), Forsyth County ETJ (? not permitted), and Jacksonville (DWQ RO implementing right now). Permitting authority now 'Local' and contact is the city or town for those 88 records. (FIDs #1166-1173; 1175-1183; 1188-1191; 1193; 1195-96; 1201-24; 1227-39; 1241-46; 1249-54; 1256-62; 1265-66). 4.) Corrected records associated with Shellfishing - SA areas that are not in Phase II areas. Deleted 'Phase II Requirements Apply' in the NOTE field for FIDs # 984, 985, 988, 989, 991, 992, 993, 994, 997, 998).
6/29/2007: 3.) Modified records associated with Durham and Guilford counties, which have been delegated authority to implement post-construction locally. FIDs #888, 889, 1106, 1120, 1135, 1140, 1198, 1199, 1200, 1247, 1277). 2.) Corrected information for WS-IV area in Camden/Pasquotank Counties; Coastal State SW permitting program also applies (FIDs #435, 463). 1.) Corrected information for NSW cities of Havelock and New Bern, and NSW strategy area in Beaufort County; Coastal State SW permitting program also applies (FIDs #6, 9, 15).
The delineation and classification of stormwater areas is based on the following description of North Carolina stormwater programs. Stormwater Programs and Phase II, Revised by Session Law 2006-246. (Bethany Georgoulias, NC Division of Water Quality, April 12, 2007): "Post-Construction" requirements are a piece of the Phase II stormwater requirements for development projects in designated municipalities, their ETJs, urbanized areas, and "municipal sphere of influence" (MSI) boundaries around those Phase II municipalities. Either the State (DWQ) or the local government (city or county, depending) will implement those requirements.
There are other existing Stormwater Programs that, in some cases, satisfy the Phase II Post-Construction requirements. These do not change the areas where Phase II applies, but these other programs may dictate what the developer must do and/or from whom he gets approval for his plan. So, these layers will be important to include on any interactive mapping program. Here is a summary of these programs:
Phase II Exempted Cities/Towns: Phase II Post-Construction will be implemented inside the ETJs of cities that were exempted either because 1) of population or 2) they do not own or operate an MSSSS (MS4). However, DWQ will implement Post-Construction within those jurisdictions. Other existing stormwater programs also still apply (and may be deemed compliant with Phase II). Therefore, in the MSI and within the ETJs of exempted municipalities, the State (Central Office) implements Phase II (except in Phase II coastal counties - the RO will handle applications).
State Stormwater (SW) Program (Most Complicated "Overlaps"): This program affects all 20 Coastal Counties, as well as watersheds draining to High Quality Waters (HQW) and Outstanding Resource Waters (ORW). It is specific to development in these areas and, for the most part, this program is implemented by the DWQ Regional Offices (ROs). In non-coastal counties where HQW or ORW watersheds overlap Phase II areas, the existing State SW Program fulfills Phase II; the user should go to the RO for a permit, or to the local government if the area is WS-I or WS-II (HQW by definition). The same is true for any freshwater HQW/ORWs within a coastal county. In Phase II coastal areas that overlap SA waters, Phase II Post-Construction is more stringent; therefore, the user should go to the Phase II authority for a permit. Phase II coastal areas that overlap saltwater ORWs or HQWs that are not SA (either SB or SC) need to meet both Phase II and State SW requirements (but still only need to go to the Phase II authority). (It is important to note here that by definition, waters classified as, WS-I, WS-II, and Shellfishing (SA) waters are all classified HQW. However, WS-I & WS-II are covered by the Water Supply Protection Program, implemented by the local governments - see next section.)
The State SW Program affects: " Development "within a half mile and draining to" SA waters; a half mile buffer should delineate all possible areas. " Development "within one mile of and draining to" HQW waters. However, this criterion does not apply to WS-I, WS-II, and coastal counties (where many HQW are SA). So, elsewhere, a one mile buffer should delineate all possible areas. " Development "draining to" ORW waters (statewide). These areas may be smaller than 14-digit hydrologic units, but there should be an ORW layer with these areas defined-Planning has maps of them. " Outside Phase II areas, where HQW/ORW overlap Water Supply watersheds WS-I and WS-II, the local jurisdiction is the permitting authority (across the state). This is not the case for WS-III & WS-IV (go to local and State-Regional Office). This is true across the state. " For freshwater HQW/ORW, the State SW Program satisfies Phase II requirements. Outside coastal counties, freshwater HQW/ORW that overlap Phase II areas will only go to the State SW permitting authority. " In HQW/ORW watersheds that overlap Phase II areas and are within SA watersheds, will only need to go to the Phase II permitting authority. " In HQW/ORW watersheds that overlap Phase II areas and are within non-SA saltwater ORW or HQW watersheds (SB or SC), will need to meet both Phase II & State SW requirements; go to the State SW permitting authority (Regional Office) until the local Post-Construction program begins.
Water Supply Watershed Protection Program: There are various tiers of Water Supply classifications, and they carry specific stormwater requirements. In this program, existing stormwater requirements satisfy Phase II Post-Construction. The WS program is implemented by local governments. The breakdown of WS watersheds and requirements follows: " WS-I & WS-II: Technically, these are subject to the State SW Program above, but the Water Supply Program in place at the local government level satisfies that requirement. Requirements will also vary based on whether the watershed is a Critical Area (CA) or Protected Area (PA). " WS-III & WS-IV: These areas are not part of the State SW program but do have stormwater requirements at the local government level. " WS-I through WS-IV requirements in the WS-Protection Program satisfy Phase II requirements.
Lake Randleman Water Supply Protection Stormwater Requirements: This is essentially a "special" subset of the WS Watershed Protection Program. All local governments "that have land use authority within the Randleman Lake watershed" must comply with the stormwater management rules for this program. Both Guilford and Randolph counties implement this program; therefore, a project anywhere in the watershed is subject to this program (and some jurisdictions may implement it within ETJ even beyond the watershed). The stormwater requirements differ based on whether the project is in the upper portion (part of Deep River watershed draining to Oakdale-Cotton Mill Dam) or lower portion (Deep River watershed upstream and draining to Randleman Lake Dam, from Oakdale-Cotton Mill Dam). The local governments that implement this program are: Guilford & Randolph counties; and the towns of Archdale, Greensboro, High Point, Jamestown, and Randleman. " The Lake Randleman WS Protection requirements satisfy Phase II.
Neuse and Tar-Pamlico NSW Strategy Stormwater Management Programs: The 15 largest local governments implement this in the Neuse Basin: Cary, Smithfield, Durham, Wilson, Garner, Goldsboro, Havelock, Kinston, New Bern, Raleigh, as well as Orange County*, Durham County*, Johnston County*, Wake County*, and Wayne County*. [Only portions within basin.] Six municipalities and five counties implement this in the Tar-Pamlico Basin: Greenville, Henderson, Oxford, Rocky Mount, Tarboro, and Washington. The counties are: Beaufort*, Edgecombe*, Franklin*, Nash*, and Pitt*. [Only portions within basin.] * Only applicable to areas under direct jurisdiction of respective county (i.e., unincorporated areas). " Both the Neuse and Tar-Pamlico NSW strategy programs satisfy Phase II requirements. [However, they do not satisfy State SW requirements.]
Lake Jordan Water Supply NSW Stormwater Management: These rules are not yet finalized, but if adopted by the EMC, here's what they would mean: stormwater management requirements will apply to local governments in the Jordan watershed. These municipalities and counties are listed on pages 5-6 of the 3/31/06 version of the draft rules. " How this fits into Phase II is not determined yet.
***It's important to remember that a local government may choose to pass ordinances, etc. that are above and beyond what existing stormwater programs or Phase II requires (at least, this will always be a possibility). This is even a possibility in areas outside of Phase II. Therefore, it is important to remind the user to check for specific local government requirements no matter where they are.
  1. How should this data set be cited?

    NC Division of Water Quality with Assistance from the NC Center for Geographic Information and Analysis, 20080609, Phase II Stormwater Reference Layer, North Carolina, 2008.

    Online Links:

    • www.nconemap.com

    Other_Citation_Details:
    This layer published 200704 and modified by DWQ Stormwater Planning Unit on 20070629, 20071107 and 20080609 with the assistance of CGIA.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -84.421887
    East_Bounding_Coordinate: -75.416583
    North_Bounding_Coordinate: 36.617152
    South_Bounding_Coordinate: 33.723370

  3. What does it look like?

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

    Calendar_Date: 01-Jun-2008
    Time_of_Day: unknown
    Currentness_Reference: publication 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?

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

      • G-polygon (1406)

    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.

  7. How does the data set describe geographic features?

    stormwater_program_reference_update20080630
    Stormwater permitting responsibility in North Carolina (Source: CGIA)

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    PERMITTING
    Responsibility for stormwater permitting (Source: CGIA)

    ValueDefinition
    LocalCounty or municipal responsibility in the area based on Phase II and other programs
    StateState responsibility for stormwater permitting in the area
    NoneNo stormwater permitting responsibility in the area
    MultipleLocal and state permits may apply in the area

    TYPE
    Type of stormwater permit (Source: CGIA)

    ValueDefinition
    CountywideStormwater permitting responsibility is based on a countywide program under Phase I or II or a voluntary program
    Randleman Lake WatershedArea is within the Lake Randleman Watershed Protection area
    NSW CountyStormwater permitting responsibility is based on Nutrient Sensitive Waters strategy for a participating county within the Neuse or Tar-Pamlico River Basin programs
    NSW CityStormwater permitting responsibility is based on Nutrient Sensitive Waters strategy within a city particpating in the Neuse or Tar-Pamlico River Basin programs
    Phase II City and NSW CityStormwater permitting responsibility is based on Nutrient Sensitive Waters strategy and Phase II designation for a city
    None, unincorporated areaNo stormwater programs apply in the unincorporated area
    Phase II CityStormwater permitting responsibility is based on Stormwater Phase II Program implemented by a city in NC under the US EPA, National Pollution Discharge Elimination System
    Exempt Phase II CityMunicipality is exempt from Stormwater Phase II Program but area within the city limits is covered by State stormwater programs
    Coastal CountyState stormwater program applies in 20 coastal counties
    Phase II City ETJStormwater permitting responsibility is based on Phase II in the Extraterritorial Jurisdiction of a Phase II city
    Phase II City AND State StormwaterBoth Phase II and the State Stormwater Program are applicable in the area
    Water Supply WatershedStormwater permitting responsibility is based on a water supply watershed
    None, incorporated areaNo stormwater program applies in an incorporated area that may be all or part of a city or town
    Exempt Phase II City ETJArea is within the Extraterritorial Jurisdiiction of a Phase II city that has an exemption
    Freshwater HQWArea is within a 1-mile buffer of a freshwater high quality water stream
    HQWORW SB SC AND Freshwater HQWArea is within 1-mile buffers of streams that relate to both saltwater (SB or SC class) and freshwater High Quality Water streams
    High Quality or OutstandingArea is in a high quality water or outstanding resource water watershed
    City in Phase II tipped countyArea is within a municipality in a county that qualifies for Phase II stormwater permitting
    Phase II MSIArea is within a municipal buffer defined by a 1-mile buffer for cities under 10,000 population (2000 Census), by a 2-mile buffer for cities with 10,000 to 24,999 population, and by a 3-mile for cities with 25,000 or more residents
    Phase II Tipped CountyArea is in a county that qualifies for Phase II Stormwater permitting
    Phase II City and HQWArea is within city limits of a Phase II city and in a High Quality Water waterhed
    Urbanized areaStormwater responsibility is related to an urbanized area based on Census 2000 designation
    SA-Shellfish WatersArea is in a SA (Shellfish) waters or outstanding resource/SA waters

    BASIS
    Basis or criteria met for stormwater permitting (Source: CGIA and NC Division of Water Quality)

    Varies from city or county name to watershed type to state program type

    NOTE
    Notes about the location or permitting responsibility (Source: CGIA)

    Notes vary by location.

    CONTACT
    Contact information for stormwater permitting (Source: CGIA and NC Division of Water Quality)

    Contacts vary by program and jurisdiction

    COUNTY
    County in which the jurisdiction is located (Source: CGIA)

    Formal codeset
    Codeset Name:100 counties of North Carolina
    Codeset Source:CGIA

    DENR_RGN
    Regional office of the Department of Environment and Natural Resources (Source: CGIA)

    Formal codeset
    Codeset Name:8 regions served by DENR regional offices
    Codeset Source:CGIA

    CATEGORY
    Category of permitting responsibility for purpose of grouping cases of unique and overlapping stormwater programs (Source: NC DWQ Stormwater Planning and CGIA)

    ValueDefinition
    No Stormwater ProgramTYPE of Permitting is "None" in incorporated or unincorporated areas
    Non-coastal Stormwater ProgramTYPE of permitting is "High Quality or Outstanding"
    Local ProgramTYPE of permitting is "NSW city", "NSW county", "Randleman Lake Watershed", or "Water Supply Watershed"
    Overlapping ProgramsTYPE of permitting is "NSW city AND Coastal", "NSW city AND WSW", "NSW county AND Coastal", "NSW county ADN ORW", "NSW county AND WSW", "Phase II city AND State Stormwater", "WSW AND Coastal county", "WSW and HQW", or "WSW and ORW"
    SA watersTYPE of permitting is "Phase II and SA-Shellfish" or "SA-Shellfish Waters"
    Coastal Stormwater ProgramTYPE of permitting is "Coastal county", "Coastal freshwater ORW", or "Saltwater SB or SC"
    Phase II Areas not otherwise identifiedTYPE of permitting is all others relating to Phase II cities and counties

    SW_ID
    Unique identifier for stormwater reference (Source: NC CGIA)

    Sequential unique whole numbers calculated as FID+1

    Entity_and_Attribute_Overview:
    Descriptors relating to stormwater permitting responsibility, stormwater programs, contact information, county and region.
    Entity_and_Attribute_Detail_Citation:
    North Carolina Center for Geographic Information and Analysis in collaboration with the Division of Water Quality in the NC Department of Environment and Natural Resources.

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?

    NC Department of Environment and Natural Resources, Division of Water Quality, Stormwater Permitting Unit NC Department of Environment and Natural Resources, Center for Geographic Information and Analysis

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

    CGIA
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

    919-733-2090 (voice)
    919-715-0725 (FAX)
    dataq@ncmail.net

    Hours_of_Service: 8:00 AM to 5:00 PM
    Contact_Instructions: Phone and electronic mail preferred

Why was the data set created?

These data were created to assist governmental agencies and their constituents in identifying which if any stormwater permitting responsibility applies to a given location in North Carolina. This data set includes attributes relating to stormwater programs and jurisdictions.

How was the data set created?

  1. From what previous works were the data drawn?

    NC OneMap Database (source 1 of 1)
    CGIA, NC, 2007, NC OneMap Database.

    Online Links:

    • www.nconemap.com

    Type_of_Source_Media: online
    Source_Scale_Denominator: 24000
    Source_Contribution:
    Source layers were processed in the model to produce polygons representing stormwater permitting responsibility across the state.

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

    Date: Jan-2007 (process 1 of 3)
    Using the ArcGIS Spatial Analyst Extension and Model Builder, a model was constructed to process 11 source layers and produce output representing stormwater permitting responsibility. The first model input feature is NC county boundaries with stormwater status relating to full counties (i.e., coastal counties under Coastal Area Management Act (state), counties that have "tipped" into the Phase II program because of population or stormwater characteristics, counties with local permits for countywide stormwater permitting, and counties with no countywide stormwater programs (none). The first identity feature is the Neuse and Tar River Basins (relating to coverage of Nutrient Sensitive Water or NSW programs). The first function is an identity that computes the geometric intersection of the input feature and the identity feature; the input feature or portions thereof that overlap the identity feature will get the attributes of the identity feature. The output of the first identity is the input feature for the second identity along with the identity feature--Urbanized areas defined by the Bureau of the Census around Phase II cities. In a series of 10 identity functions, the output from the previous identity becomes the input feature. The identity features, in sequence, are Neuse and Tar River Basins, urbanized areas (representing municipal sphere of influence); municipal buffers (pre-processed buffers of 1-mile (municipalities with Census 2000 population below 10,000), 2-miles (population 10,000 to 24,999) and 3-mile (population 25,000 and over) representing municipal sphere of influence); ETJ including associated city limits, High Quality Water Outstanding Resource Water (HQWORW) watersheds excepting Water Supply Watersheds WS-I and WS-II; HWQ/ORW SB or SC watersheds, the Lake Randleman watershed; municipal boundaries with stormwater status inlcuding Nutrient Sensitive Waters and Phase II status; freshwater HQWORW in coastal counties, and water supply watersheds.

    Person who carried out this activity:

    Jeffrey Brown
    CGIA
    Project Manager
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

    919-733-2090 (voice)
    919-715-0725 (FAX)
    dataq@ncmail.net

    Hours_of_Service: 8:00 AM to 5:00 PM
    Date: 11-Feb-2007 (process 2 of 3)
    The output shapefile from the model contained fields from all of the source files. The desired output needed a set of 8 meaningful fields that retain the appropriate values from the series of identities.
    ModelBuilder: Set up 10 identities in sequence
    Validate Entire Model
    Run Entire Model
    Sw_output1.shp has 5,596 polygons
    Add new fields (all text fields except for SW_ID):
    PERMITTING (10), TYPE (35), BASIS (40), NOTE (40), CONTACT (45), COUNTY (30), and DENR_RGN (30). SW_ID was set to "long integer".
    Calculate values of the new fields in the output shapefile by selecting records as noted below (select by attribute) and using the calculate function for the attribute table. The method is to edit the record values in a sequence that selects the "overriding" stormwater types in order. The selection includes records for which TYPE has not been classified so that the values are not over-written. The last layer to use as a basis of selection will be county boundaries - some parts of some counties will have no stormwater type value by the end of the editing and will receive "None" for TYPE.
    In the sw_output1.shp properties, click off the fields for FIDs from the source files and CO_ABBR and CO_NUM. These fields are not needed for the updates and need not be displayed in the attribute table.
    Starting with water supply watersheds:
    For sw_output1.shp, select by attribute: "CLASS_1" <> ' ' (2519) and calculate as PERMITTING = "Local", TYPE = "Water Supply Watershed", skip BASIS, NOTE = "Satisfies Phase II Requirements", CONTACT = website URL for the contact list. Select again by CLASS_1 not blank and PCA_TYPE = C (789) and calculate the value of BASIS as CLASS_1&" Critical Area" then do the same for the protected area subset (1730).
    Where TYPE_P__13 = Randleman Watershed, edit TYPE ="Randleman Lake Watershed" and leave the other fields as calculated for water supply watersheds.
    "TYPE_FW" = 'Freshwater HQW' (340) and calculate as "State" "Freshwater HQW" "Coastal" "Satisfies Phase II Requirements" and "State Stormwater Permitting DWQ Regional"
    "TYPE_P__14" = 'Phase II city' AND "BASIS" = '' (779 polygons) Local, Phase II city, BASIS = MB_NAME, NOTE = inside city or town limits, Contact = MB_NAME
    "TYPE_P__14" = 'Exempt Phase II city' AND "TYPE" = '' (91) = State and MB_NAME and Inside City or Town Limits and NOTE = and CONTACT = Central Office of Division of Water Quality
    "TYPE_P__14" = 'Phase II city and NSW city' AND "TYPE" = '' (154) and TYPE = '' = local BASIS = MB_NAME, NOTE = inside city or town limits, Contact = MB_NAME
    TYPE_P14 = NSW city and TYPE = '' (12) PERMITTING = local BASIS = MB_NAME, NOTE = inside city or town limits, Contact = MB_NAME
    TYPE_P14 = Randleman and Phase II (29) = local Randleman alone (2 additional records) = local BASIS = MB_NAME
    "TYPE_P__13" = 'Randleman Watershed' AND "TYPE" = '' (2) (There were 202 total in watershed, most already typed by WSW and other) TYPE = "Randleman Lake Watershed"
    "TYPE_SB" = 'SB_SC' SB and SC watersheds selected (278); Select overlap of Phase II. "TYPE_SB" = 'SB_SC' AND "TYPE" = 'Phase II City' (20) Permitting = Multiple TYPE = Phase II City AND State Stormwater BASIS = Jacksonville AND HQWORW SB or SC NOTE = Inside city limits AND in watershed CONTACT = BOTH Jacksonville AND DWQ Regional
    "TYPE_SB" = 'SB_SC' AND "TYPE" = 'Freshwater HQW' SB and SC watersheds overlapping Freshwater HQW (117). Classify as all state SWP. TYPE = HWQORW SB SC AND Freshwater BASIS = Coastal NOTE = Overlapping 1-mile buffers CONTACT = State Stormwater Program DWQ Regional
    "TYPE_SB" = 'SB_SC' AND "TYPE" = '' SB and SC not Phase II and not overlapping Freshwater (141) = State SWP TYPE = High Quality or Outstanding BASIS = Saltwater SB or SC NOTE = One-mile buffer around streams CONTACT = State Stormwater Program DWQ Regional
    "CLASS" = 'ORW/SA' AND "TYPE" = '' Not overlapping Phase II or Freshwater HQW (29) TYPE = High Quality or Outstanding
    "CLASS" = 'SA' AND "TYPE" = 'Phase II City' SA overlapping Phase II cities (11) = Local NOTE = Inside city AND SA watershed
    "CLASS" = 'ORW/SA' AND "TYPE" = 'Phase II City' ORW/SA overlapping Phase II cities (6) = Local NOTE = Inside city AND ORW SA watershed
    "CLASS" = 'ORW/SA' AND "TYPE" = 'Freshwater HQW' ORW/SA overlapping Freshwater HQW (7) NOTE = ORW/SA AND Freshwater HQW 1-mile buffer
    "CLASS" = 'SA' AND "TYPE" = 'Freshwater HQW' SA overlapping Freshwater HQW (99) NOTE = SA AND Freshwater HQW 1-mile buffer
    ("CLASS" = 'HQW' OR "CLASS" = 'ORW') AND "TYPE" = 'Phase II City' HQW or ORW overlapping Phase II cities (4) = (State SWP) Phase II city and HQW State Stormwater Program DWQ Regional
    ("CLASS" = 'HQW' OR "CLASS" = 'ORW') AND "TYPE" = '' HQW/ORW not overlapping Phase II or other typed so far (195) = State TYPE = High Quality or Outstanding BASIS = CLASS NOTE = CONTACT = State Stormwater Program DWQ Regional
    "TYPE_P_12" = 'Exempt Phase II city ETJ' AND "TYPE" = '' (2) Central DWQ PERMITTING = State TYPE = Exempt Phase II City ETJ BASIS = [BASIS_P_12] NOTE = In ETJ CONTACT = Central Office NC Division of Water Quality
    "TYPE_P_12" = 'Phase II city ETJ' AND "TYPE" = '' (484) Central DWQ PERMITTING = State TYPE = Phase II City ETJ BASIS = [BASIS_P_12] NOTE = In ETJ CONTACT = Central Office NC Division of Water Quality
    "TYPE" = 'NSW City' AND "RIVBASIN_N" = ' ' NSW city outside of Tar-Pamlico (1) piece of Henderson. = None NOTE = Inside City Limits but not in Tar Basin
    "TYPE_P__14" = 'In Phase II tipped county' AND "TYPE" = '' (143) = DWQ central office TYPE = City in Phase II tipped county BASIS = MB_NAME NOTE = Inside City or Town Limits CONTACT = Central Office NC Division of Water Quality
    Check tipped city in non-tipped county; there are several that were selected because they intersect a tipped county. Saluda has parts in tipped and non-tipped counties FID=1145 is in Polk which is not tipped. TYPE = "None, incorporated area" Likewise for Locust and Stanfield portions in Stanly County, Gold Hill portion in Rowan County, Kings Mountain portion in Cleveland County, Red Springs in Robeson County, and Sanford and Broadway in Lee County.
    "TYPE_BU" = 'Municipal buffer' AND "TYPE" = '' (93) = Central DWQ TYPE = Municipal Buffer BASIS = Buffer of Phase II Cities NOTE = Combined buffers of 1 or 2 or 3 miles CONTACT = Central Office NC Division of Water Quality
    "TYPE_P_1" = 'Urbanized area' AND "TYPE" = '' (26) = Central DWQ TYPE = "TYPE_P_1" BASIS = "BASIS_P_1" NOTE = Based on Census Bureau definition CONTACT = Central Office NC Division of Water Quality
    "TYPE_P__13" = 'Randleman Watershed' Randleman unincorporated county parts (2) were already part of the 202 records for Randleman Lake Watershed
    "SW_TYPE" = 'countywide_co_permit' AND "TYPE" = '' (4) = local TYPE = TYPE_P BASIS = BASIS_P NOTE = CONTACT = CO_NAME
    "SW_TYPE" = 'county_NSW_Tar' AND "RIVBASIN_N" = 'TAR-PAMLICO' AND "MB_NAME" = ' ' AND "TYPE" = '' Tar-Pam (5) TYPE = NSW County BASIS = CO_NAME NOTE = RIVERBASIN_N CONTACT = CO_NAME
    "SW_TYPE" = 'county_NSW_Neuse' AND "RIVBASIN_N" = 'NEUSE' AND "MB_NAME" = ' ' AND "TYPE" = '' Neuse (4) TYPE = NSW County BASIS = CO_NAME NOTE = RIVERBASIN_N CONTACT = CO_NAME
    Tipped counties "TYPE_P" = 'Phase II Tipped County' AND "TYPE" = '' AND "MB_NAME" = ' ' (25) = Central DWQ TYPE = Phase II Tipped County BASIS = CO_NAME CONTACT = Central Office NC Division of Water Quality
    "CAMA" = 'yes' AND "TYPE" = '' (97) = State SWP TYPE = Coastal County BASIS = CO_NAME NOTE = MB_NAME CONTACT = State Stormwater Program DWQ Regional
    Remaining with TYPE = '' (333) = None
    "TYPE_P" = 'Phase II Tipped County' AND "MB_NAME" = ' ' "SW_PERMIT" = 'Tipped' AND "TYPE_P" = 'Randleman' AND "TYPE" = '' (2) missed by other selections - non-Randleman watershed parts of Randolph and Guilford TYPE = Phase II Tipped County BASIS = CO_NAME NOTE = Not in Randleman Lake Watershed CONTACT = Central Office NC Division of Water Quality
    Note: Caldwell and Mecklenburg have local permits for countywide permitting; unincorporated areas within municipal buffer should be "local" permitting, not "state" and will need to be edited. Select records for each county and edit as needed. An extra layer for those two counties would have reduced the need for editing. Cumberland is different - incorporated non-Phase II areas are State responsibility
    "TYPE" = '' AND "SW_PERMIT" = 'Tipped' Missed 1 polygon in Mecklenburg County PERMITTING = PERMIT_A TYPE = TYPE_P BASIS = BASIS_P NOTE = Countywide Permit
    "TYPE" = 'Countywide' 3 records in Caldwell County BASIS = BASIS_P_14 (city names if any) or county name
    CO_NAME = CALDWELL 144 records
    PERMITTING = Local TYPE as is BASIS as is NOTE = Countywide Permitting by Caldwell County CONTACT = CALDWELL
    "TYPE" = '' AND "TYPE_P" <> 'None' Check for missed pieces
    None "TYPE" = '' 330 PERMITTING = None TYPE = None BASIS = BASIS_P_14 NOTE = TYPE_P__14 CONTACT = None
    Check for spelling consistency and recalculate as needed. Note that [BASIS_P_12] returns a mix of upper and proper case use selection and recalculating (remember to change source file for next time).
    Populate DENR_RGN field and COUNTY field for all records
    Dissolve on PERMITTING and fields to the right
    Dissolved to 1,315 polygons
    Compute SW_ID = FID +1 Export shapefile as stormwater_reference20070213.shp and import and edit metadata from draft feature class.
    Editing: Select records where PERMITTING = State and COUNTY = MECKLENBURG
    These records (EJTs and municipal buffers) are exceptions in Mecklenburg County. Change to Mecklenburg County permitting (local) FID = 897, 1148, 1174, 1186, 1192, 1194, 1197, 1225, 1240, 1255, 1295
    FID = 1132 and 1297 Change to Cumberland County/Fayetteville permitting and local. Non-Phase II cities in Cumberland County are under state responsibility (verified by Mike Randall); unincorporated areas are under local permitting. Change Type to "Countywide" instead of Phase II countywide
    Change water supply watershed to Randleman Lake Watershed for 366, 380, 448 and 466
    Locust and Stanfield portions in Stanly County should be "None" 1059 and 1104 Same for Gold Hill portion (1047) in Rowan County Same for Kings Mountain portion in Cleveland County (1054) And Red Springs in Robeson County (1086) And Sanford and Broadway in Lee County (1019 and 1092)
    Cities near Randleman but not in the watershed-portions edited to be TYPE = Phase II City (156-161)
    Edited type for "None" based on municipal or unincorporated and created two values: "None, incorporated area" and "None, unincorporated area" Edited TYPE values as follows: "Municipal Buffer" to "Phase II MSI" and for the SA subset of "High Quality and OUtstanding Resource" created an additional TYPE = "SA-Shellfish Waters". Edited values in other fields to clarify "buffer" as "near" or "within 1 mile" as appropriate.

    Person who carried out this activity:

    Jeffrey Brown
    NC CGIA
    Project Manager
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

    919-733-2090 (voice)
    919-715-0725 (FAX)
    dataq@ncmail.net

    Hours_of_Service: 9:00 to 5:00
    Contact_Instructions: email or phone preferred
    Date: 30-Jun-2008 (process 3 of 3)
    Source datasets were updated and the model was used again to generate polygons that were classified to represent 32 cases of stormwater permitting responsibility by program type. Polygons were dissolved to combine polygons of the same type, program, and contact. Quaity control by the Stormwater Planning Unit identified mis-classified polygons and edits were made to make the classifications consistent and accurate based on the current stormwater permitting requirements in North Carolina. An additional field was added (Category) to group the 32 cases into a manageable set for symbolization at larger scales.

    Person who carried out this activity:

    Jeffrey Brown
    CGIA
    Project Manager
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

    919-968-7828 (voice)
    919-715-0725 (FAX)
    jeffrey.p.brown@ncmail.net

    Hours_of_Service: 9:00-5:00
  3. What similar or related data should the user be aware of?

    NC Department of Transportation GIS Unit, 2006, County boundaries in North Carolina.

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

  1. How well have the observations been checked?

    The attributes for the base geospatial layers used in the model have be checked for accuracy in terms of watershed identifiers, county names, municipal names, municipal population, urbanized area names, and Phase II status of jurisdictions.

  2. How accurate are the geographic locations?

    Base layesr used in the model were mapped at a scale of 1:24,000 or better to be consistent with National Map Accuracy Standards. The digital files were plotted and overlayed to the originals and needed line corrections were made to within one line width.

  3. How accurate are the heights or depths?

    There is no vertical dimension to this data layer.

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

    This data layer represents stormwater jurisdiction within North Caroilna based on the best available geospatial data relating to Stormwater Phase II municipal boundaries, planning jurisdictions, municipal spheres of influence represented by urbanized areas (Census 2000) and buffers of municipal boundaries based on US EPA criteria, and other local and state stormwater programs related to nutrient sensitive waters, water supply watersheds, high quality water and outstanding resource water watersheds, the NC Coastal Area Management Act, and the Lake Randelman watershed program. The only base geospatial layer that is incomplete is the planning jurisdiction (extra territorial jurisdiction or ETJ) layer that lacks digital representations for municipalities in New Hanover and Henderson Counties (not available in digital format). Regarding county boundaries, the shoreline is not delineated in this file, only the shell of the state.

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

    Original processing: using ESRI's ARC/INFO GIS software, the dataset was developed using Model Builder and the Spatial Analyst extension. The model processed statewide datasets or subsets of statewide datasets to represent stormwater jurisdiction within the boundaries of North Carolina.

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:
It is important to remember that a local government may choose to pass ordinances that are above and beyond what existing stormwater programs or Phase II requires. A local government may choose to pass ordiinances in areas outside of Phase II areas. Also, city limits and extraterritorial jurisdictions (ETJ) may have changed since this dataset was created. Also, water supply watersheds or other water quality delineations may have changed between updates of this dataset. Therefore, users of this dataset should check for specific local government requirements to verify the information represented in this dataset. Acknowledgement of products derived form this data set should cite the following: The sources of the stormwater reference data are mapped at a scale of 1:24,000 or better, implying horizontal error plus or minus 40 feet. This representation is intended as a guide to persons seeking stormwater permits and to permitting authorities. 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 CGIA
    20322 Mail Service Center
    Raleigh, NC 27699-0322
    USA

    919-733-2090 (voice)
    919-715-0725 (FAX)
    dataq@ncmail.net

    Hours_of_Service: 9:00 to 5:00
    Contact_Instructions: Phone and email preferred.
  2. What's the catalog number I need to order this data set?

    Stormwater reference for North Carolina with selected stormwater program characteristics.

  3. What legal disclaimers am I supposed to read?

    NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible 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 dataset without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by 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 can be customized on a cost-recovery basis. Contact dataq@ncmail.net or 919-733- 2090 for more information.

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

    All formats available from www.nconemap.com are in ESRI shapefile. Other formats are available on a cost-recovery basis - contact dataq@ncmail.net or 919.733.2090 for more information. Format compatibility is the user's responsibility.

Who wrote the metadata?

Dates:
Last modified: 02-Jul-2008
Last Reviewed: 02-Jul-2008
Metadata author:
CGIA
c/o Jeffrey P. Brown
Project Manager
20322 Mail Service Center
Raleigh, NC 27699-0322
USA

919-733-2090 (voice)
919-715-0725 (FAX)
jeffrey.p.brown@ncmail.net

Hours_of_Service: 8:00 AM to 5:00 PM
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Generated by mp version 2.9.5 on Wed Aug 27 10:31:57 2008