Identification_Information:
  Citation:
    Citation_Information:
      Originator: California Interagency Watershed Mapping Committee
      Originator: California Department of Forestry and Fire Protection
      Originator: Tierra Data Systems, California
      Originator: Department of Water Resources
      Originator: State Water Resources Control Board
      Originator: California Department of Fish and Game
      Originator: State of California Stephen P. Teale Data Center GIS Solutions Group
      Publication_Date: 20041118
      Title: California Interagency Watershed Map of 1999 (Calwater 2.2.1)
      Edition: 2.2.1
      Geospatial_Data_Presentation_Form: vector digital data
      Other_Citation_Details: State of California Department of Water Resources Memorandum of Understanding Regarding the Use and Maintenance of the California Watershed Map by the California Interagency Watershed Mapping Committee (CIWMC, 1998 - 2000).  http://cain.nbii.gov/calwater/
      Online_Linkage: \\Molib01\GIS_Library\hydrography\watersheds_and_basins\calw221
      Online_Linkage: http://gis.ca.gov/casil/gis.ca.gov/calwater
      Larger_Work_Citation:
        Citation_Information:
          Originator: California Resources Agency
          Publication_Date: 2001
          Title: California Spatial Information Library (CaSIL)
          Geospatial_Data_Presentation_Form: Online Digital Geospatial Data
          Series_Information:
            Series_Name: California Spatial Information Library
            Issue_Identification: 1.0
          Publication_Information:
            Publication_Place: Sacramento, California
            Publisher: State of California, California Resources Agency
          Other_Citation_Details: State of California repository for online Digital Geospatial Data.  Initiated on July 1, 2001 following transfer of the Stephen P. Teale Data Center GIS Solutions Group GIS Library.
          Online_Linkage: http://www.gis.ca.gov
  Description:
    Abstract:
      The California Interagency Watershed Map of 1999 (updated May 2004, "calw221") is the State of California's working definition of watershed boundaries.  Previous Calwater versions (1.2 and 2.2) described California watersheds, beginning with the division of the State's 101 million acres into ten Hydrologic Regions (HR).  Each HR is progressively subdivided into six smaller, nested levels: the Hydrologic Unit (HU, major rivers), Hydrologic Area (HA, major tributaries), Hydrologic Sub-Area (HSA), Super Planning Watershed (SPWS), and Planning Watershed (PWS).   At the Planning Watershed (the most detailed level), where implemented, polygons range in size from approximately 3,000 to 10,000 acres.  At all levels, a total of 7035 polygons represent the State's watersheds.  The present version, Calwater 2.2.1, refines the watershed coding structure and documentation (database fields were added and some were renamed).   There are significant watershed boundary, code, and name differences between Calwater versions 1.2 (1995), 2.0 (1998), and 2.2 (1999).  The differences between versions 2.2 (1999) and 2.2.1 (2004) are attribute field names and some inserted lines that identify differences between State and federal watersheds.

      Calwater 2.2.1 most accurately delineates true watersheds in mountainous terrain.  However, neither Calwater 2.2.1 nor any of its predecessors is a "pure" watershed map because administrative boundaries such as the State border were used to delineate watershed areas.  Some of the boundaries, particularly in developed valley areas, also have legal and administrative purposes other than the representation of actual drainage divides.  Examples include the so-called "Legal Delta" (California Water Code, Chapter 2, the Delta, Sec. 12220) and other district boundaries.  Neither is Calwater a legal map document, as it does not represent State of California Regional Water Quality Control Board (RWQCB) jurisdictions, officiated by the State Water Resources Control Board (SWRCB) under California Water Code Section 13200.  Calwater is a hybrid, a spatial cross-reference for use in local, State, and federal information communities.

      The California Resources Agency (CRA) Department of Forestry and Fire Protection (CDF) contracted with Tierra Data Systems for the original digital production in 1993, based on Hydrologic Basin Planning Maps  published in hardcopy (SWRCB, 1986).  The State of California Stephen P. Teale Data Center GIS Solutions Group (Teale) under the direction of the California Department of Water Resrouces (DWR) and CDF, finalized the current version in ESRI ArcInfo coverage format in 1999 with USDA Forest Service and RWQCB/SWRCB inputs. The CRA California Spatial Information Library (CaSIL) is the current distributor of the coverage in the Teale Albers Conical Equal-Area projection, North American Datum of 1983. The California Department of Fish and Game (DFG) authored Calwater attribution design and documentation culminating in May 2004 with this Federal Geographic Data Committee (FGDC-STD-001-1998) standard metadata.
    Purpose:
      The purpose of Calwater 2.2.1 is to standardize the boundary delineation, coding, and naming of California watersheds by government agencies.  Calwater also cross-references watershed codes implemented by the California Department of Water Resources (DWR), the California State Water Resources Control Board (SWRCB) and Regional Water Quality Control Boards (RWQCB), as well as Hydrologic Unit Codes (HUC) published by the U.S. Geological Survey (USGS) for California and the nation.

      Standardized watershed delineations, codes, and names from both State and federal systems are used primarily to map, analyze, and document water resources and water quality information and regulations.  Examples include water quality reporting to the U.S. Environmental Protection Agency by SWRCB and Timber Harvest Plan tracking by the California Department of Forestry and Fire Protection (CDF).   Applications also include regional planning, environmental analysis, hydrology, wildlands research, soils, agriculture, and fish and wildlife habitat management.  Calwater is also useful in geographic information systems (GIS) and for online data retrieval.  Calwater 2.2.1 and versions to follow are intended to provide a comprehensive geographic frame of reference for the California landscape.
    Supplemental_Information:
      This Supplemental Information explains State of California watershed coding, Calwater 2.2.1 designs and limitations, version history, processing, and attributes.  Users are advised to carefully review this material before implementing these watershed boundaries, names, or codes within their applications.
      --

      State Watershed Codes -- The Calwater Design

      Calwater 2.2.1 is designed to divide the State into a series of six nested Levels of watersheds: Hydrologic Region, Hydrologic Unit, Hydrologic Area, Hydrologic Sub-Area, Super-Planning Watershed, and Planning Watershed (Table 1).  The principal objective is to uniquely identify (by name or code) all described watershed polygons.  As an evolving, integrated set of physical and administrative boundaries along with legacies of coding and naming, Calwater is not without its complexities and inconsistencies. Calwater's strengths are spatial accuracy and attribute versatility.

      The following Tables are contained at various positions within this document.  Search text for "Table <n>" of choice.

      Table 0. ESRI ArcInfo Coverage Polygon attribute table (calw221.pat)
      Table 1. Counts of Watersheds by Level
      Table 2a, 2b. Valid cases of replicated watershed codes and associated acreages
      Table 3. State and Federal Hydrologic Codes (HUC cross-reference)
      Table 4. Calwater 2.0 (DWR) and Calwater 2.2 (CDF, SWRCB) Coding Differences


      Table 0. Polygon Attribute Table Structure "calw221.pat"

      COL ITEM NAME   WIDTH OUTPUT TYPE N.DEC  DESCRIPTION
      1  AREA          8    18     F     5    Area of Polygon (square meters)                   
      9  PERIMETER     8    18     F     5    Perimeter of Polygon (meters)                   
      17  CALW221#      4     5     B     -    ArcInfo internal record number                   
      21  CALW221-ID    4     5     B     -    ArcInfo user id (not used)                   
      25  CALWNUM      12    12     C     -    Calwater Watershed ID Number (Interagency)
      37  SWRCBNUM21        6     6     C     -    Watershed ID Number (SWRCB at Calwater v2.1)
      43  HRC           2     2     C     -    Hydrologic Region Code (DWR)
      45  HBPA          2     2     C     -    Hydrologic Basin Planning Area (RWQCB)
      47  RBU           5     5     I     -    Concatenates HR,RB,HU into a single integer
      52  RBUA          6     6     I     -    Concatenates HR,RB,HU,HA
      58  RBUAS         7     7     I     -    Concatenates HR,RB,HU,HA,HSA
      65  RBUASP        9     9     I     -    Concatenates HR,RB,HU,HA,HSA,SPWS
      74  RBUASPW      11    11     I     -    Concatenates HR,RB,HU,HA,HSA,SPWS,PWS
      85  HR            2     2     I     -    Hydrologic Region (1->10)(DWR)
      87  RB            1     1     I     -    Regional Water Qual. Cont. Board (1->9)(RWQCB)
      88  HU            2     2     I     -    Hydrologic Unit (00->~80)(SWRCB)
      90  HA            1     1     I     -    Hydrologic Area (0->9)(SWRCB)
      91  HSA           1     1     I     -    Hydrologic Sub-Area (0->9)(SWRCB)
      92  SPWS          2     2     I     -    Super Planning Watershed (00->~30)(CDF)
      94  PWS           2     2     I     -    Planning Watershed (00->~13)(CDF)
      96  HRNAME       35    35     C     -    Hydrologic Region Name (DWR)
      131  RBNAME       35    35     C     -    Regional Water Qual. Cont. Board Name
      166  HBPANAME     35    35     C     -    Hydrologic Basin Planning Area Name
      201  HUNAME       35    35     C     -    Hydrologic Unit Name
      236  HANAME       35    35     C     -    Hydrologic Area Name
      271  HSANAME      35    35     C     -    Hydrologic Sub-Area Name
      306  CDFSPWNAME   35    35     C     -    Super-Planning Watershed Name
      341  CDFPWSNAME   35    35     C     -    Planning Watershed Name
      376  ACRES         4    12     F     0    Acreage of watershed polygon
      380  HUC_8         8     8     I     -    Federal 8-digit Hydrologic Unit Code (HUC)
      388  HUC_8_NAME   48    48     C     -    Name of Federal 8-digit HUC
      436  HUC_8_ALT2    8     8     I     -    Second Overlapping HUC
      444  HUC_8_ALT3    8     8     I     -    Third Overlapping HUC
      452  DWRNUM20     12    12     C     -    DWR watershed identifier (Calwater v2.0 MOU)
      464  DWRHUNAME    35    35     C     -    DWR Hydrologic Unit Name (Calwater v2.0)
      499  DWRHANAME    35    35     C     -    DWR Hydrologic Area Name (Calwater v2.0)
      534  DWRHSANAME   35    35     C     -    DWR Hydrologic Sub-Area Name (Calwater v2.0)
      569  CDFNUM22     12    12     C     -    CDF Watershed ID Number (at Calwater v2.2)
      ------------------------------------------------------------------------------------------------------------------------------------------------------
      ------------------------------------------------------------------------------------------------------------------------------------------------------


      Table 1.
      Calwater 2.2.1
      Counts of Watersheds by Level
      -----------------------------------------------------------------------------
      Level         Designation                             Count

      1         Hydrologic Regions                        10
      2         Hydrologic Units                           190 
      3         Hydrologic Areas                       ~ 522
      4         Hydrologic Sub-Areas                ~ 655
      5         Super Planning Watersheds    ~ 1623
      6         Planning Watersheds               ~ 6271

      Note on Table 1: The Hydrologic Region is the
      only Level fully subdivided into Hydrologic Units.
      Other levels are partially subdivided and thus
      computed counts of unique codes will vary.
      The total of polygons at v2.2.1 is 7035,
      the number of unique codes is 7008.
      The total number of Hydrologic Unit names is 185.
      See Logical Consistency Report.
      ------------------------------------------------------------------------------
      ------------------------------------------------------------------------------

      Non-Unique Codes

      There are several cases of replicated names and codes where 'watershed' designations are cartographically 'fragmented' into multiple polygons.  In these cases, each component polygon bears the same name and code (e.g. the Channel Islands chain, polygons 'split' by State and County borders, ground water basins, lake shorelines, etc).  The instances of valid, replicated codes are presented below (Table 2a).

      Table 2a.
      Calwater 2.2.1. Fragmented ('split') Watersheds with
      Valid, Replicated Codes by Level

      Key:
      Count = Number of watershed polygon fragments
      RBU = R + B + U, where R = DWR HR numeric code,
      B = RWQCB numeric code, and U = SWRCB Hydrologic Unit number;
      RBUA = RBU + A, where A = SWRCB Hydrologic Area number;
      S = HSA; P = SPWS; W = PWS; see Entity Attribute Metadata.
      The Hydrologic Region is watershed Level 1.
      ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
      Hydrologic Unit, Level (2)
      Count  RBU              Condition
      2         1102              Oregon Border Split
      3         3316              Channel Islands Split
      8         4406              Channel Islands Split
      2         4481              LA/Santa Ana Regional Split (5 polyons in RBU 4801 have same HUNAME)
      2         4845              LA/Santa Ana Regional Split
      2         6542              Ground Water Line Split

      Hydrologic Area, Level (3)
      Count  RBUA            Condition
      2         33091            Federal HUC Split
      2         33092            Federal HUC Split
      2         33095            Federal HUC Split
      3         55061            Federal HUC Split (Shasta Lake)
      3         44061            Channel Islands Split
      2         44063            Channel Islands Split
      6         48451            LA/Santa Ana Regional Split
      2         48456            LA/Santa Ana Regional Split
      2         65424            Ground Water Line Split
      2         96094            Nevada Border Split

      Hydrologic Sub-Area, Level (4)
      Count  RBUAS          Condition
      2         330911           Federal HUC Split
      3         440610           Channel Islands Split
      2         440630           Channel Islands Split
      3         480111           Federal HUC Split (East Coastal Plain)
      2         440813           Point Mugu Lagoon - 2 parts
      6         484515           LA/Santa Ana Regional Split
      2         484562           LA/Santa Ana Regional Split
      2         551423           Federal HUC Split
      2         551425           Ground Water Line Split
      2         552662           Federal HUC Split
      2         551812           Federal HUC Split (Oroville Reservoir)
      2         653721           Lake McClure Split
      2         654241           Ground Water Line Split
      2         755421           Isabella Reservoir
      2         960942           Nevada Border Split


      Super-Planning Watershed, Level (5)
      Count  RBUASP         Condition
      3         44061000       Channel Islands Split
      2         44063000       Channel Islands Split
      2         44081300       Point Mugu Lagoon - 2 parts
      6         48451500       LA/Santa Ana Regional Split
      2         48456200       LA/Santa Ana Regional Split
      2         55062003       Lake Shasta Split
      2         55062005       Lake Shasta Split
      4         55062008       Lake Shasta Split
      2         55142500       Ground Water Line Split
      2         55222404       Stony Gorge Reservoir Split
      2         96094200       Nevada Border Split

      Planning Watershed, Level (6)
      Count  RBUASPW    Condition
      3         3309600404   Ground Water Line Split
      2         3309700901   Ground Water Line Split
      2         3309200003   Federal HUC Split
      2         3309500403   Federal HUC Split
      3         4406100000   Channel Islands Split
      2         4406300000   Channel Islands Split
      2         4408130000   Point Mugu Lagoon - 2 parts
      6         4845150000   LA/Santa Ana Regional Split
      2         4845620000   LA/Santa Ana Regional Split
      2         5526620006   Federal HUC Split
      2         5526620008   Federal HUC Split
      2         9609420000   Nevada Border Split

      Notes on Table 2a: 'Ground Water Line' refers to the delineation of Central Valley and Salinas Valley sediments that have historically defined divisions between valley and upland watersheds; 'Regional Splits' refer to watershed boundaries for County-related, administrative purposes; 'Federal HUC Splits' refer to a given State watershed overlapping a federal Hydrologic Unit Code (HUC) boundary (in these cases, an 'artificial' line is inserted within the State watershed to enable accurate cross-references; other 'Splits' refer to the mapping artifact of having an otherwise whole watershed 'split' by State borders and other feature boundaries.
      -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
      -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

      Watershed Sizes

      In Calwater 2.2.1, all ten of California's Hydrologic Regions are subdivided into a total of 190 Hydrologic Units.  However, not all Hydrologic Units are subdivided into Hydrologic Areas, not all Hydrologic Areas are subdivided into Hydrologic Sub-Areas, nor are subdivisions complete at the Super-Planning and Planning Watershed levels.  This is most strongly evidenced in the watershed polygon sizes within a given Level.  For example, to track Timber Harvest Plan submissions, the California Department of Forestry and Fire Protection (CDF) subdivided watersheds down to the Planning Watershed Level (PWS, code RBUASPW).  The PWS design criterion was a polygon size of approximately 3,000 to 10,000 acres. In areas of minimal timber harvest activity, however (the Central Valley, South Coast, and deserts) CDF did not subdivide watersheds, but an undivided polygon still bears a PWS code structure, if not the actual PWS sub-delineation. One example is in the deserts, the Amargosa River watershed, whose actual polygon size is 1.6 million acres.  As a general rule, a zero in the value for HA, HSA, SPWS, or PWS (unless it is a leading zero as in 01, 02, 03, etc) is an indication of the watershed being undivided at the subject Level, regardless of size.  Some PWS watersheds exhibit 'skipping' of upper Levels (SPWS, HSA, HA)  in their coding.

      Watershed sizes also vary within the Hydrologic Unit (HU, code RBU) and other levels of the State and Regional Water Quality Control Board coding system.  In the 1970's and 80's, published HUs and HAs were much smaller (more precisely mapped) in the South Coast than they were in the North Coast.  Watershed size differences reflect, then as now, southern California population densities and associated water quality information requirements. For example, the Ventura Coastal Streams HU comprises 22,476 acres, whereas the Eel River HU (Humboldt, Mendocino Counties) encompasses over 2.6 million acres.

      The representation of a given watershed may also be fragmented on the Calwater 2.2.1 map by the overlap of administrative boundaries.  Table 2b presents some examples where watershed total acreage is the sum of the areas of its component polygons.

      Table 2b.
      Calwater 2.2.1 Examples of Total Acreages for Fragmented Watersheds
      ------------------------------------------------------------------------------------------------------------------
      Count   CALWNUM          Name [Field]                                 Total Acreage
      ---------  ---------------------    ---------------------------------------------------  -----------------------
      6        4845.150000    Central (Split) [Hsaname]                       1944
      3        4406.100000    Anacapa Island [Haname]                       717
      2        4845.620000    La Habra (Split) [Cdfpwsname]            12764
      2        4408.130000    Point Mugu Lagoon [Hsaname]              358
      2        4406.300000    Santa Barbara Island [Haname]              654

      3        3309.600404    Sweetwater Creek [Cdfpwsname]          6551
      2        3309.110000    Neponset [Hsaname]                          73160
      2        3309.700901    Crazy Horse Canyon [Cdfpwsname]       2281

      3        5506.100000    Shasta Lake [Haname]                        28170
      2        5514.230000    Folsom Reservoir [Hsaname]               11026
      3        5518.120000    Oroville Reservoir [Hsaname]              15470

      2        7554.210000    Isabella Reservoir [Hsaname]              11506

      2        9609.420000    Shoshone [Hsaname]                       496814


      Note on Table 2b: Count = Number of watershed polygon fragments.
      Users must account for these and other cases when calculating
      watershed acreages by summing individual polygon areas.
      ---------------------------------------------------------------------------------------------------------------
      ---------------------------------------------------------------------------------------------------------------

      Replicated Watershed Names

      Calwater 2.2.1 also has several instances of replicated watershed names at various Levels, a legacy of State and Regional Water Quality Control Board maps (and an MOU by SWRCB, DWR and USGS in 1986).  Version 2.2 of Calwater released by the Stephen P. Teale Data Center (Teale) GIS Solutions Group in September, 1999 indicated this condition with entries of the form "SAME AS HUNAME", "SAME AS HANAME", etc in watershed name fields. This update (Calwater 2.2.1, May 2004) contains the original names as published by the SWRCB and RWQCBs.  In cases of replicated names, the watershed designation Level (HU, HA, etc) must be specified along with its name to avoid confusion (there is a known case of two HU code sets with the same HUNAME, SANTA ANA RIVER; see Logical Consistency Report).  Users are also advised to reference Calwater's unique watershed codes (with noted exceptions, Table 2).  The watershed code ulitmately provides the most reliable identification regardless of Level.

      Cross-Referencing Challenges

      Table 3 cross-references State of California Hydrologic Regions with federal Sub-Regions.  Within the State system, DWR and SWRCB/RWQCB designations differ in the Central Valley and South Coast. In the Central Valley, DWR codes three Hydrologic Regions (HRs 5, 6, and 7), whereas the SWRCB codes a single Regional Board (RB 5). In contrast, the Central Valley Regional Water Quality Control Board codes three Hydrologic Basin Planning Areas (HBPA: SB, SJ, and TL) that roughly correspond to the three DWR HRs (also note that SB and SR both refer to the Sacramento River Basin).  This situation is reversed in the South Coast: three Regional Boards are designated in DWR's one Hydrologic Region. Two other single-letter, historical codesets implemented in DWR Bulletin 130-85 "Hydrologic Data 1985" and in other DWR publications (Bulletins 118, 160, and 230) are listed for reference (but are not currently coded in Calwater 2.2.1).

      Federal Hydrologic Unit Codes (HUC)

      In Hydrologic Unit Codes (HUC), the federal system published by USGS (Water Supply Paper 2294, 1986), the nested hierarchy of watershed designations is generally similar to the State system.  Differences in use of the term "Hydrologic Region" reflect changes in scope from the national to the state level.  The federal HUC Hydrologic Region 18  (California) is defined as "...the drainage within the United States that ultimately discharges into the Pacific Ocean within the state of California; and (b) those parts of the Great Basin (or other closed basins) that discharge into the state of California. Includes parts of California, Nevada, and Oregon" (USGS, 1986, op.cit.).

      At the State level, each of the ten California "Hydrologic Regions" roughly correspond to a HUC Sub-Region (Table 3).  The widely-known HUC designation is an 8-digit code now called the "SubBasin" (Huc_8), roughly equivalent to the State's Hydrologic Area (HA).  The SubBasin is also referred to as a "fourth field" watershed, where four 'fields' (2-digits each) progressively define watersheds from the Region (nationally) down to the SubBasin and smaller watersheds.  The term "SubBasin" term replaced the term "Cataloging Unit" (CU) in the emerging Watershed Boundary Dataset (WBD) standard (per FGDC Proposal, Version 1.0: "Federal Standards for Delineation of Hydrologic Unit Boundaries"; Section 7.2.1, March 1, 2002); see also the Cross Reference section of this metadata).

      At Calwater version 2.2.1, the "CU" field was renamed to "Huc_8" (FGDC / WBD, op.cit.).  Associated fields formerly named "CUNAME", "CU2", and "CU3" were changed to "HUC_8_NAME", "HUC_8_ALT2", and "HUC_8_ALT3", respectively.

      State - Federal Watershed Code Cross-Reference

      Calwater 2.2.1 provides polygon-by-polygon cross-references to federal Sub-Basin codes in its ArcInfo Polygon Attribute Table (.pat), described in the Entity Attribute section of this metadata.  Statewide, some 149 federal SubBasins map 1-to-1 with Calwater watersheds.  Only 18 Calwater watersheds overlap multiple SubBasins; 5 Calwater watersheds overlap three SubBasins.  An exception to the cross-reference design (the SubBasin listed in fields HUC_8 and HUC_8_NAME overlaps 80% or more of the State watershed) is the case of the SEAL_BEACH SubBasin. The majority overlap of the East Coastal Plain HSA is actually with the NEWPORT_BAY SubBasin (a third SubBasin, the SANTA_ANA, also has a minority overlap).  This exception enables all of the names of federal SubBasins in California to be contained in a single field "HUC_8_NAME".  Note that special 'patch' lines have been inserted into State watersheds to account for the major cases of federal HUC boundaries 'splitting' State watersheds, mostly in reservoir shorelines coded as 'watersheds' by SWRCB (see tables that itemize these cases).


      Table 3. State and Federal Hydrologic Codes
      -----------------------------------------------------------------------------------------------------------------------------------------------------
      Key

      HR:      DWR Hydrologic Region (1->10)
      RB:      Regional Water Quality Control Board (1->9)
      BC:      DWR Basin Code (1-letter; Bulletin 130-85; Surface Water data)
      AC:      DWR Areal Code (1-letter; Areal Designation Map; Climate, Ground Water)
      HRC:   DWR Hydrologic Region code (2-letter acronym, various pubs.)
      HBPA: SWRCB Hydrologic Basin Planning Area (2-letter acronym)
      SUBR: USGS Hydrologic Unit Code (HUC) Sub-Region; includes border States
      ---

      HR RB BC AC HRC  DWR HR Name        HBPA  SWRCB/RB Name      SUBR
      -- -- -- -- ---  -----------------  ----  -----------------  --------------
      1   1  F  F  NC  North Coast         NC   North Coast        1801,1710
      2   2  E  E  SF  San Francisco Bay   SF   San Francisco Bay  1805
      3   3  D  T  CC  Central Coast       CC   Central Coast      1806
      4   4  Z  U  SC  South Coast         LA   Los Angeles        1807
      5   5  A  A  SR  Sacramento River    SB   Sacramento Basin   1802
      6   5  B  B  SJ  San Joaquin River   SJ   San Joaquin        1804
      7   5  C  C  TL  Tulare Lake         TL   Tulare Lake        1803
      8   6  G  G  NL  North Lahontan      NL   North Lahontan     1808,1604,1605
      9   6  V  W  SL  South Lahontan      SL   South Lahontan     1809,1606
      10  7  W  X  CR  Colorado River      CR   Colorado River     1810,1503
      --    8  Y  Y  --  (not defined)       SA   Santa Ana          1807
      --    9  X  Z  --  (not defined)       SD   San Diego          1807

      HR SUBR  Federal HUC Hydrologic Sub-Region Name (Remarks)
      ---    --------    ---------------------------------------------------------------------------------------
      1    1801    Klamath-Northern California Coastal (incl. upper Klamath, OR)
      1    1710    Oregon-Washington Coastal (minor CA portion of OR drainages)
      2    1805    San Francisco Bay
      3    1806    Central California Coastal
      4    1807    Southern California Coastal
      5    1802    Sacramento
      6    1804    San Joaquin
      7    1803    Tulare-Buena Vista Lakes
      8    1808    North Lahontan (incl. portions of NV basins draining into CA)
      8    1604    Black Rock Desert-Humboldt (minor CA portion of NV basins)
      8    1605    Central Lahontan (includes Tahoe basin and portions of NV)
      8    1712    Oregon Closed Basins (minor CA portion near Goose Lake)
      9    1809    Northern Mojave-Mono Lake (minor NV portions included)
      9    1606    Central Nevada Desert Basins (minor CA portion)
      10   1810    Southern Mojave-Salton Sea
      10   1503    Lower Colorado (includes CA portion west of Colorado River)

      -----------------------------------------------------------------------------------------------------------------------------------------------------------
      -----------------------------------------------------------------------------------------------------------------------------------------------------------

      Calwater Version History

      Calwater version 2.2 is the third version of this dataset (after versions 1.2 and 2.0 and 2.1) and was based on 1:500,000-scale Hydrologic Basin Planning Maps published from 1973 through 1986 by the State Water Resources Control Board in Sacramento, California.

      Version 1.2 was completed in 1995 by Tierra Data Systems, California, under contract to the California Department of Forestry and Fire Protection (CDF).  Linework was captured by overlaying SWRCB Hydrologic Basin Planning Area Maps on 1:24,000-scale, 7.5' USGS quads and then redrawing and digitizing lines to match watershed boundaries interpreted from elevation contours.  To the four existing SWRCB watershed levels: Hydrologic Regions (Level 1), Hydrologic Units (Level 2), Hydrologic Areas (Level 3), and Hydrologic Sub-Areas (Level 4), CDF created two additional levels to reference their Timber Harvest Plan tracking and other landscape analyses: the Super Planning Watershed (SPWS, Level 5) and the Planning Watersheds (PWS, Level 6).

      In 1997, the California Department of Water Resources (DWR) initiated adoption of only the first four Levels of Calwater 1.2 for maps associated with their California Water Plan updates of 1998.  In addition, DWR worked with the Stephen P. Teale Data Center (Teale) GIS Solutions Group to integrate so-called 'groundwater lines' which define the perimeters of the Central Valley and the Salinas Valley.  DWR and Teale also conducted extensive quality assurance on watershed delineation and coding, including inputs from the USDA Forest Service, principally the Klamath, Lassen, Mendocino, Shasta-Trinity, and Six Rivers National Forests.

      The logical sequence for operational Calwater versions is 2.0, 2.1, 2.2, 2.2.1.  This is not an exact chronological sequence, as indicated above.  Calwater 2.0 is not in operational use, its main purpose now is the documentation of interagency consensus on 4 Levels of watershed coding, and on watershed boundaries, names, and codes statewide, except the Central Valley floor and selected lakes and reservoirs.  Calwater 2.1 represents the State Water Resources Control Board's Hydrological Basin Planning Maps, with boundaries, names, and codes as published in 1986, with modifications at the 1999 release of Calwater 2.2.  Calwater 2.2 (1999) represents the California Department of Forestry and Fire Protection (CDF) addition of watershed Levels 5 and 6 to the previously established 4-Level system of 1986 and 1998.  The present version, Calwater 2.2.1, modified version 2.2 with database field additions and field name changes, and was subjected to  documentation under FGDC-STD-001-1998.  There are no boundary, name, or code differences between Calwater versions 2.2 and 2.2.1 (except some 'patch' lines that identify federal HUC differences).

      In 2001, the USDI Bureau of Reclamation (USBR) and the USDA Natural Resources Conservation Service (NRCS) also worked with the Forest Service and USDI Bureau of Land Management (BLM) to develop hydrologically correct delineations (see Watershed Boundary Dataset, WBD, in Cross References) using Calwater 2.2 as one of several sources.

      Interagency Cooperation

      Following a State of California interagency Memorandum of Understanding "Regarding the Use and Maintenance of the California Watershed Map" (finalized by the signatory agencies listed below from 1998 to 2000], the USDI Bureau of Reclamation, USDA Natural Resources Conservation Service, USDA Forest Service, U.S. Geological Survey and other federal agencies continued to work with staffs of National Forests, BLM, Counties, Resource Conservation Districts (RCD), Regional Water Boards, the State's Interagency Watershed Mapping Committee (IWMC), and other interested parties to revise California watershed boundaries for conformance to national standards.  Details on the Watershed Boundary Dataset (WBD) are in the Cross References section of this metadata.

      Interagency Watershed Mapping (Calwater) Committee Members
      ------------------------------------------------------------------------------------------------------
      California Department of Water Resources (DWR)
      California Department of Forestry and Fire Protection (CDF)
      California Department of Fish and Game (DFG)
      California State Water Resources Control Board (SWRCB)
      USDA Forest Service (USFS) Pacific Southwest Region (R5)
      USDA Natural Resources Conservation Service (NRCS)
      U.S. Geologic Survey (USGS)
      USDI Bureau of Reclamation (USBR)
      USDI Bureau of Land Management (BLM)
      U.S. Environmental Protection Agency (USEPA) Region IX
      Stephen P. Teale Data Center (Teale) GIS Solutions Group
      -----------------------------------------------------------------------------------------------------
      -----------------------------------------------------------------------------------------------------
      --End Supplemental Information

      ===================================================================================
      -- The following excerpts describe the version of Calwater 2.2 released by the State of California Stephen P. Teale Data Center GIS Solutions Group in September, 1999.  
      Editorial comments [in square braces] by the California Department of Fish and Game, April, 2004 --

      LIBRARY       : CA
      LAYER NAME    : CALWATER22
      COVERAGE NAME : CALW22A

      COVERAGE DESCRIPTION:

      The California Watershed Map (CALWATER version 2.2) is a set of
      standardized watershed boundaries meeting standardized delineation
      criteria.  The hierarchy of watershed designations consists of six
      levels of increasing specificity: Hydrologic Region (HR),
      Hydrologic Unit (HU), Hydrologic Area (HA), Hydrologic Sub-Area
      (HSA), Super Planning Watershed (SPWS), and Planning Watershed
      (PWS). The primary purpose of Calwater is the assignment of a
      single, unique code to a specific watershed polygon.  While there
      are 7022 polygons in the ARC/INFO coverage, there are actually
      fewer watershed codes.  This is due to cases of multiple polygons
      bearing the same watershed code (Channel Islands, split polygons
      due to other boundary integration, e.g. ground water basins).
      Another confusing factor is that not all Hydrologic Units are
      subdivided into Hydrologic Areas, not all Hydrologic Areas are
      subdivided into Hydrologic Sub-Areas, and so on.  Therefore, a
      nominal count of watershed codes in Calwater 2.2 is:

      Hydrologic Regions:           10
      Hydrologic Units:            190
      Hydrologic Areas:            522
      Hydrologic Sub-Areas:        655
      Super Planning Watersheds:  1623
      Planning Watersheds:        6271

      [see Version History above]

      VITAL STATISTICS:

      Datum:          NAD 27 [updated to NAD 83 as of May 2004]
      Projection:     Albers
      Units:          Meters
      1st Std. Parallel:         34 00 00 (34.0 degrees N)
      2nd Std. Parallel:         40 30 00 (40.5 degrees N)
      Longitude of Origin:      -120 00 00 (120.0 degrees W)
      Latitude of Origin:        00 00 00 (0.0 degrees)
      False Easting (X shift):   0
      False Northing (Y shift): -4,000,000
      Source:                    1:24,000 USGS Quad Maps
      Source Media:              Paper
      Source Projection:         Polyconic
      Source Units:              Meters
      Source Scale:              1:24,000
      Capture Method:            Original digitizing by J. Kellogg
      and staff (Tierra Data Systems)
      Conversion Software:       ARC/Info rev 7.2.1
      Data Structure:            Vector
      ARC/INFO Coverage Type:    Polygon, Line (Network)
      ARC/INFO Precision:        Double
      ARC/INFO Tolerances:       Fuzzy tolerance - 2 meters
      Dangle Length   - .1 meters
      Number of Features:        7022 polygons [updated to 7035 as of May, 2004]
      Layer Size:                30.5 megabytes
      Data Updated:              September 1999 [updated May 2004]

      DATA DICTIONARY:

      DATAFILE NAME:  CALW22A.PAT

      COL  ITEM NAME  WIDTH OUTPUT  TYPE N.DEC
      1  AREA         8    18     F      5
      9  PERIMETER    8    18     F      5
      17  CALW22A#     4     5     B      -
      21  CALW22A-ID   4     5     B      -
      25  IDNUM       12    12     C      -
      37  HRC          2     2     C      -
      39  HBPA         2     2     C      -
      41  RBU          5     5     I      -
      46  RBUA         6     6     I      -
      52  RBUAS        7     7     I      -
      59  RBUASP       9     9     I      -
      68  RBUASPW     11    11     I      -
      79  HR           2     2     I      -
      81  RB           1     1     I      -
      82  HU           2     2     I      -
      84  HA           1     1     I      -
      85  HSA          1     1     I      -
      86  SPWS         2     2     I      -
      88  PWS          2     2     I      -
      90  HRNAME      35    35     C      -
      125  RBNAME      35    35     C      -
      160  HBPANAME    35    35     C      -
      195  HUNAME      35    35     C      -
      230  HANAME      35    35     C      -
      265  HSANAME     35    35     C      -
      300  SPWSNAME    35    35     C      -
      335  PWSNAME     35    35     C      -
      370  ACRES        4    12     F      0
      374  CU           8     8     I      -
      382  CUNAME      48    48     C      -
      430  CU2          8     8     I      -
      438  CU3          8     8     I      -
      446  IDNUM_20    12    12     C      -
      458  HUNAME_20   35    35     C      -
      493  HANAME_20   35    35     C      -
      528  HSANAME_20  35    35     C      -

      IDNUM       :    ID NUMber of watershed (DWR+SWRCB/RWQCB+CDF)
      HRC         :    Hydrologic Region Code (DWR)
      HBPA        :    Hydrologic Basin Planning Area (SWRCB)
      RBU         :    Aggregate of HR,RB,HU
      RBUA        :    Aggregate of HR,RB,HU,HA
      RBUAS       :    Aggregate of HR,RB,HU,HA,HSA
      RBUASP      :    Aggregate of HR,RB,HU,HA,HSA,SPWS
      RBUAPSW     :    Aggregate of HR,RB,HU,HA,HSA,SPWS,PWS
      HR          :    Hydrologic Region (1->10)
      RB          :    Regional Water Qual. Cont. Board (1->9)
      HU          :    Hydrologic Unit (00->~80)
      HA          :    Hydrologic Area (0->9)
      HSA         :    Hydrologic Sub-Area (0->9)
      SPWS        :    Super Planning Watershed (00->~30)
      PWS         :    Planning Watershed (00->~15)
      HRNAME      :    Hydrologic Region Name
      RBNAME      :    Regional Water Qual. Cont. Board Name
      HBPANAME    :    Hydrologic Basin Planning Area Name
      HUNAME      :    Hydrologic Unit Name
      HANAME      :    Hydrologic Area Name
      HSANAME     :    Hydrologic Sub-Area Name
      SPWSNAME    :    Super Planning Watershed Name
      PWSNAME     :    Planning Watershed Name
      ACRES       :    Acreage of watershed polygon
      CU          :    Cataloging Unit (Fed. HUC), overlap #1
      CUNAME      :    Cataloging Unit name, overlapping CU #1
      CU2         :    Cataloging Unit, overlapping CU #2
      CU3         :    Cataloging Unit, overlapping CU #3
      IDNUM_20    :    Calwater 2.0 IDNUM (DWR dissolver)
      HUNAME_20   :    Calwater 2.0 HUNAME (DWR dissolver)
      HANAME_20   :    Calwater 2.0 HANAME (DWR dissolver)
      HSANAME_20  :    Calwater 2.0 HSANAME (DWR dissolver)

      DATAFILE NAME:  CALW22A.AAT

      COL  ITEM NAME  WIDTH OUTPUT  TYPE N.DEC
      1  FNODE#       4     5     B      -
      5  TNODE#       4     5     B      -
      9  LPOLY#       4     5     B      -
      13  RPOLY#       4     5     B      -
      17  LENGTH       8    18     F      5
      25  CALW22A#     4     5     B      -
      29  CALW22A-ID   4     5     B      -
      33  LEVEL        2     5     B      -

      LEVEL       :    Highest level of difference between right and left
      side watersheds (e.g. 3 indicates different HAs)

      IDNUM TO HUC CROSSWALK

      Calwater maps fairly neatly to the federal Hydrologic Unit Codes
      (HUCS).  Generally Calwater watersheds fit within HUCs, though
      there are some exceptions:

      The IDNUM to HUC cross-reference was developed with the following
      rules:

      For a given [state] Calwater watershed, overlapping [federal]
      Hydrologic Unit Codes (at the 8-digit Cataloging Unit [CU] level)
      are listed up to a maximum of 80% of the Calwater watershed OR
      three CUs, whichever comes first.

      For example:

      Where there are two CU codes (CU and CU2) listed for a given
      Calwater code (only 18 [17] watersheds fit this criterion), the largest
      CU alone overlaps less than 80% of the Calwater watershed, but
      combining CU2 then provides overlap of at least 80% of the
      Calwater watershed.

      Where there are three CU codes (CU, CU2, and CU3) listed for a
      given Calwater watershed (only 1 watershed fits this criterion,
      [the East Coastal Plain HSA (Orange County), where
      CU3 = 18070203, named SEAL_BEACH],
      the largest 2 CUs together overlap less than 80% of the Calwater
      watershed; combining a third CU code produces additional overlap.
      Complete overlap statistics are left for calculation by the user.

      If a watershed consists of multiple polygons (because it is split
      by the groundwater line, the state boundary, or it is comprised of
      multiple islands), the total area of the watershed (the sum of all
      the polygons) is the value entered in the ACRES item
      [in 2004 at Calwater version 2.2.1 (calw221) this was changed so that ACRES now contains only individual polygon acreages; this reduces risks of double counting areas].

      The individual polygons of a multi-polygon watershed all have the same
      watershed code.  These cases are itemized below:

      LEGITIMATE DUPLICATE CODES (MULTIPLE POLYGONS FOR A SINGLE
      WATERSHED):

      Hydrologic Unit Level
      Count  RBU              Condition
      2         1102              Oregon Border Split
      3         3316              Channel Islands Split
      8         4406              Channel Islands Split
      2         4481              LA/Santa Ana Regional Split [see notes above]
      2         4845              LA/Santa Ana Regional Split
      2         6542              Ground Water Line Split
      ...

      [Complete itemization in presented in Table 2a of this metadata]


      DATA QUALITY ASSESSMENT:

      The following are subjective comments regarding this data:

      CALWATER boundaries were digitized on a 1:24,000-scale base and
      thus very accurately divide surface water features depicted on
      1:100,000-scale Digital Line Graph hydrography.  However, CALWATER
      delineations are primarily designed to be administrative reporting
      units, and the boundaries should not be used to define
      authoritative drainage area above a given point as a portion of
      their definition includes non-physical boundaries, particularly in
      valley floor and urbanized coastal regions. Attribute completeness
      is good.  Compatibility with existing state and federal watershed
      delineations is good, except where explicitly different boundary
      configurations are applied.

      DOCUMENTATION DATE: September 1999
      ========================================================================
      -- End Teale metatdata excerpts [DFG edits May, 2004] --

      Calwater Status

      On July 1, 2001 custodial responsibility for Calwater 2.2 was transferred, upon closure of Teale GIS Solutions Group operations, to the California Resources Agency in Sacramento.  Efforts are underway as of 2004 to also host Calwater at a node of the National Biological Information Infrastructure (NBII) at the University of California Davis Information Center for the Environment (UCD / ICE).  The current version is called Calwater 2.2.1 ("calw221") and is dated May 2004.  The California Resources Agency's California Spatial Information Library (CaSIL) is the current distributor of Calwater.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 197304
        Ending_Date: 199909
    Currentness_Reference: publication date
  Status:
    Progress: In work
    Maintenance_and_Update_Frequency: Irregular
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -124.506151
      East_Bounding_Coordinate: -113.497815
      North_Bounding_Coordinate: 42.068675
      South_Bounding_Coordinate: 32.423713
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: none
      Theme_Keyword: watershed boundaries
      Theme_Keyword: water resources
      Theme_Keyword: inlandWaters
      Theme_Keyword: environment
      Theme_Keyword: boundaries
      Theme_Keyword: watersheds
      Theme_Keyword: hydrologic unit codes
      Theme_Keyword: water quality reporting
      Theme_Keyword: waterbody beneficial use
      Theme_Keyword: impaired waterbodies
    Place:
      Place_Keyword_Thesaurus: none
      Place_Keyword: California
  Access_Constraints: none
  Use_Constraints: Cite Originator as California Interagency Watershed Mapping Committee; include complete metadata in redistributions
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Watershed Specialist
        Contact_Organization: California Department of Forestry and Fire Protection (CDF)
      Contact_Address:
        Address_Type: mailing address
        Address: California Department of Forestry and Fire Protection
        Address: Attn: Fire and Resources Assessment Program
        Address: P.O. Box 944246
        City: Sacramento
        State_or_Province: California
        Postal_Code: CA 94244-2460
        Country: USA
      Contact_Voice_Telephone: (916) 445-5342
      Contact_Electronic_Mail_Address: chris.keithley@fire.ca.gov
  Data_Set_Credit: California Interagency Watershed Mapping Committee: California Department of Water Resources (DWR), California Department of Forestry and Fire Protection (CDF), California Department of Fish and Game (DFG), California State Water Resources Control Board (SWRCB), USDA Forest Service (USFS) Pacific Southwest Region (R5), USDA Natural Resources Conservation Service (NRCS), U.S. Geologic Survey (USGS), USDI Bureau of Reclamation (USBR), USDI Bureau of Land Management (BLM), U.S. Environmental Protection Agency (USEPA) Region IX, Stephen P. Teale Data Center (Teale GIS Solutions Group).
  Security_Information:
    Security_Classification_System: none
    Security_Classification: not applicable
    Security_Handling_Description: not applicable
  Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
  Cross_Reference:
    Citation_Information:
      Originator: State Water Resources Control Board (SWRCB)
      Originator: Regional Water Quality Control Boards (RWQCB)
      Publication_Date: 1986
      Title: Hydrologic Basin Planning Area Maps
      Edition: 1986
      Geospatial_Data_Presentation_Form: paper maps
      Series_Information:
        Series_Name: Hydrologic Basin Planning Area Maps
        Issue_Identification: 1986
      Publication_Information:
        Publication_Place: Sacramento
        Publisher: California State Water Resources Control Board
      Other_Citation_Details: 12 maps in the series for California statewide; See also 1986 MOU signed by SWRCB / RWQCBs, DWR, and USGS for standardization of watershed names.
  Cross_Reference:
    Citation_Information:
      Originator: U.S. Geological Survey
      Publication_Date: 1994
      Title: Hydrologic Units Maps of the Conterminous United States
      Edition: 1
      Geospatial_Data_Presentation_Form: vector digital data
      Other_Citation_Details: Originally published circa 1973 as paper maps at 1:500,000-scale with California as part of a nationwide series; later revised with reference publication USGS Water Supply Paper 2294 (1987); See USGS online linkage for digital form at 1:250,000- and 1:2,000,000-scales.
      Online_Linkage: http://water.usgs.gov/GIS/huc.html
      Online_Linkage: http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
      Online_Linkage: http://water.usgs.gov/lookup/getspatial?huc250k
  Cross_Reference:
    Citation_Information:
      Originator: Federal Geographic Data Committee (FGDC)
      Originator: Natural Resources Conservation Service (NRCS)
      Originator: USDI Bureau of Reclamation
      Originator: U.S. Geological Survey
      Publication_Date: 20020301
      Title: Watershed Boundary Dataset (WBD)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: document
      Other_Citation_Details: Federal Standards for Delineation of Hydrologic Unit Boundaries (FGDC Proposal, Version 1.0)
      Online_Linkage: http://www.ftw.nrcs.usda.gov/HUC/HU_standards_v1_030102.doc
      Online_Linkage: http://www.fgdc.gov/standards/documents/proposals/fgdc_hu_proposal.doc
  Cross_Reference:
    Citation_Information:
      Originator: California Department of Water Resources (DWR)
      Originator: California Interagency Watershed Mapping Committee
      Publication_Date: 1998
      Title: California Watershed Map MOU 1998
      Geospatial_Data_Presentation_Form: document
      Other_Citation_Details: Memorandum of Understanding on the Use and Maintenance of the California Watershed Map (state and federal signatory agencies, 1998 - 2000); references a previous Calwater version for maps in the California Water Plan - DWR Bulletin 160 - 1998.
  Cross_Reference:
    Citation_Information:
      Originator: State Water Resources Control Board (SWRCB)
      Originator: California Department of Water Resources
      Originator: U.S. Geological Survey
      Publication_Date: 1986
      Title: California Hydrologic Unit Names and Codes MOU 1986
      Geospatial_Data_Presentation_Form: document
      Other_Citation_Details: Memorandum of Understanding (formal title unknown) cited by the SWRCB with DWR and USGS for watershed names and codes as published on SWRCB Hydrologic Basin Planning Area Maps, 1986 revision.
  Cross_Reference:
    Citation_Information:
      Originator: California State Water Resources Control Board
      Originator: California Department of Water Resources
      Publication_Date: 1976
      Title: Operating Understanding Between the State Water Resources Control Board and the Department of Water Resources Regarding Basin Planning Boundaries
      Geospatial_Data_Presentation_Form: document
      Other_Citation_Details: This Operating Understanding (OU) contains the formal identification of four levels of watershed designations in California, beginning with the division of the entire State into 12 hydrologic basins. The OU ites the "Water Quality Coordination Summary", transmitted to the California Legislature on May 6, 1975, which describes the coordination of SWRCB and DWR in statutory, authorized water quality-related matters.
  Cross_Reference:
    Citation_Information:
      Originator: State Water Resources Control Board, Division of Water Quality, Nonpoint Source Program
      Publication_Date: 198811
      Title: Nonpoint Source Assessment Report,  Appendix H, Index to Watersheds in California
      Geospatial_Data_Presentation_Form: document
      Other_Citation_Details:
        Report Mandated by the federal Clean Water Act, Sections 303d, 304, 314, and 319, and 40CFR131.11.

        Appendix H contains 2 components
        1. "Hydrologic Basin Codes": a printout for each [Hydrologic] Region showing current watershed names and the State Board [Code], DWR [Areal Code], and USGS [8-digit HUC] codes.

        ["...In 1978 the State Water Resources Control Board, the California Department of Resources, and the U.S. Geological Survey agreed on revised boundaries and names for watersheds in the State.  Each Agency retained its own coding system.  The State Board and DWR agreed on a common watershed hierarchical nomenclature of Hydrologic Basins (HB), Units (HU), Areas (HA) and Subareas (HSA), dropping the old term "Subunit" (SU)..."

        [see previous 1976 SWRCB / DWR Operating Understanding for California watershed designations]

        2. "Modified Hydrologic Basins": a printout for each Region showing only those watersheds which have had a name, code, and/or boundary update [at 1986 revision of SWRCB Hydrologic Basin Planning Area maps].

        See other Cross-References in this metadata.
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Calwater contains unique codes and names for over 99% of the 7035 watershed polygons described (exceptions are detailed in Supplemental Information and in the Logical Consistency and Completeness Reports in this metadata).  A quantitative analysis of conformance to federal watershed delineation standards is in progress.  

      The field ACRES (numeric figure, zero decimal places) is provided for only general comparison of watershed sizes; no accuracy assesment has been performed.  Note that in reprojecting Calwater 2.2 from the North American Datum of 1927 (NAD 27) to NAD 83, some minor changes in acreages were obtained.  All acreage changes measure less than one tenth of one percent, with the observed maximum difference being 44 acres in the 1.6 million-acre Stove Pipe Wells HSA (SWRCBNUM21 = 609.11).
  Logical_Consistency_Report:
    Calwater 2.2.1 Logical Consistency Report

    The logical consistency of Calwater 2.2.1 (May 2004 Update, "calw221") was examined by reviewing watershed coding at various levels and by comparison to previously-published watershed maps.

    Calwater 2.2.1 boundaries were digitized on a 1:24,000-scale USGS topographic map base and thus accurately divide surface water features depicted at that scale as well as on 1:100,000-scale Digital Line Graph hydrography.  However, Calwater 2.2.1 delineations are primarily designed to be administrative reporting units, and the boundaries should not be used to define authoritative drainage area above a given point as a portion of their definition includes non-physical boundaries, particularly in valley floor and urbanized coastal regions. Attribute completeness is good.  Compatibility with existing state and federal watershed delineations is good, except where explicitly different boundary configurations are applied.

    Calwater 2.2.1 is designed to uniquely identify each watershed polygon.  There are, however, several cases where multiple polygons bearing replicates of the same watershed code (e.g. Channel Islands, split polygons due to other boundary integration, such as ground water basin boundaries, State boundaries, etc).  The approximate number of actual watershed designations by level (Table 1) and the instances of valid, duplicated codes (Tables 2a and 2b) are presented below.  Table 3 provides State - Federal cross-references of watershed codes and names.

    In Calwater 2.2.1, all ten of California's Hydrologic Regions are subdivided into a total of 190 Hydrologic Units (there are actually only 185 Hydrologic Unit names because five polygons in RBU 4481 have the same HUNAME (SANTA ANA RIVER) as 42 polygons in RBU 4801 due to a County-line split of the actual watershed polygons).  However, not all Hydrologic Units are subdivided into Hydrologic Areas, not all Hydrologic Areas are subdivided into Hydrologic Sub-Areas, nor are subdivisions complete at the Super-Planning and Planning Watershed levels.  This is most strongly evidenced in the watershed polygon sizes within a given level.  For example, to track Timber Harvest Plan submissions, the California Department of Forestry and Fire Protection (CDF) subdivided watersheds down to the Planning Watershed  level (PWS, code RBUASPW).  The PWS was designed around a polygon size of approximately 3,000 to 10,000 acres. In areas of minimal timber harvest activity (Central Valley, South Coast, and Deserts) CDF did not subdivide watersheds, leaving some individual polygons totalling as much as 1.6 million acres.  Where watersheds are undivided, "undefined" is entered in the watershed name fields for appropriate levels.

    There are also cases where Calwater version 2.2 has watersheds subdivided to Level 5 and 6 in larger, previously undivided watersheds (at Levels 2 and 3) on the SWRCB maps of 1986.  In other words,  'Level-skipping' has occurred in the process of defining the most detailed level of watersheds (at Level 6, the 'Planning Watershed', PWS).  This has significance for pre-Calwater users of watershed coding at DWR and SWRCB because, if the 4-Level coding schema is followed, there are several instances where 'undefined' will apply to not only the PWS, but also to higher Levels: the Hydrologic Area (HA, Level 3) and Hydrologic Sub-Area (HSA, Level 4).

    Watershed sizes also vary within the Hydrologic Unit (HU, code RBU) and other levels of the State and Regional Water Quality Control Board coding system.  In the 1970's and 80's, published HUs and HAs were much smaller (more precisely mapped) in the South Coast than they were in the North Coast.  Watershed size differences reflect, then as now, southern California population densities and associated water quality information requirements. For example, the Ventura Coastal Streams HU comprises 22,476 acres, whereas the Eel River HU (Humboldt, Mendocino Counties) encompasses over 2.6 million acres.

    Calwater 2.2.1 also has several instances of duplicated watershed names at various Levels, a legacy of State and Regional Water Quality Control Board maps (and an MOU with DWR and USGS in 1986).  Users are advised to reference  unique watershed codes (with noted exceptions, Table 2) as these are the most reliable identifiers at all watershed levels.  

    Within the State system, DWR and SWRCB/RWQCB designations differ in the Central Valley and South Coast. In the Central Valley, DWR codes three Hydrologic Regions (HRs 5, 6, and 7); SWRCB codes 1 Regional Board (RB 5). In contrast, within the same Central Valley, the Regional and State Water Boards code three Hydrologic Basin Planning Areas (HBPA) that roughly correspond to the three DWR HRs.  Conversely, the State Board recognizes three Regional Boards in DWR's South Coast HR. Note that the two-letter acronyms SR and SB both refer to the Sacramento River basin

    Table 1.
    Calwater 2.2.1
    Watershed Levels and Numbers of Watershed Designations
    ----------------------------------------------------------------------------------------------
    Level         Designation                             Count

    1         Hydrologic Regions                        10
    2         Hydrologic Units                           190 
    3         Hydrologic Areas                       ~ 522
    4         Hydrologic Sub-Areas                ~ 655
    5         Super Planning Watersheds    ~ 1623
    6         Planning Watersheds               ~ 6271

    Note on Table 1: The Hydrologic Region is the
    only Level fully subdivided into Hydrologic Units.
    Other levels are partially subdivided and thus
    computed counts of unique codes will vary.
    The total of polygons at v2.2 is 7022,
    the number of unique codes is 7008.
    The total number of Hydrologic Unit names is 185.
    See Logical Consistency Report.
    ---------------------------------------------------------------------------------------------

    Table 2a.
    Calwater 2.2.1. Fragmented ('split') Watersheds with
    Valid, Replicated Codes by Level

    Key:
    Count = Number of watershed polygon fragments
    RBU = R + B + U, where R = DWR HR numeric code,
    B = RWQCB numeric code, and U = SWRCB Hydrologic Unit number;
    RBUA = RBU + A, where A = SWRCB Hydrologic Area number;
    S = HSA; P = SPWS; W = PWS; see Entity Attribute Metadata.
    The Hydrologic Region is watershed Level 1.
    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    Hydrologic Unit, Level (2)
    Count  RBU              Condition
    2         1102              Oregon Border Split
    3         3316              Channel Islands Split
    8         4406              Channel Islands Split
    2         4481              LA/Santa Ana Regional Split (5 polyons in RBU 4801 have same HUNAME)
    2         4845              LA/Santa Ana Regional Split
    2         6542              Ground Water Line Split

    Hydrologic Area, Level (3)
    Count  RBUA            Condition
    2         33091            Federal HUC Split
    2         33092            Federal HUC Split
    2         33095            Federal HUC Split
    3         55061            Federal HUC Split (Shasta Lake)
    3         44061            Channel Islands Split
    2         44063            Channel Islands Split
    6         48451            LA/Santa Ana Regional Split
    2         48456            LA/Santa Ana Regional Split
    2         65424            Ground Water Line Split
    2         96094            Nevada Border Split

    Hydrologic Sub-Area, Level (4)
    Count  RBUAS          Condition
    2         330911           Federal HUC Split
    3         440610           Channel Islands Split
    2         440630           Channel Islands Split
    3         480111           Federal HUC Split (East Coastal Plain)
    2         440813           Point Mugu Lagoon - 2 parts
    6         484515           LA/Santa Ana Regional Split
    2         484562           LA/Santa Ana Regional Split
    2         551423           Federal HUC Split
    2         551425           Ground Water Line Split
    2         552662           Federal HUC Split
    2         551812           Federal HUC Split (Oroville Reservoir)
    2         653721           Lake McClure Split
    2         654241           Ground Water Line Split
    2         755421           Isabella Reservoir
    2         960942           Nevada Border Split


    Super-Planning Watershed, Level (5)
    Count  RBUASP         Condition
    3         44061000       Channel Islands Split
    2         44063000       Channel Islands Split
    2         44081300       Point Mugu Lagoon - 2 parts
    6         48451500       LA/Santa Ana Regional Split
    2         48456200       LA/Santa Ana Regional Split
    2         55062003       Lake Shasta Split
    2         55062005       Lake Shasta Split
    4         55062008       Lake Shasta Split
    2         55142500       Ground Water Line Split
    2         55222404       Stony Gorge Reservoir Split
    2         96094200       Nevada Border Split

    Planning Watershed, Level (6)
    Count  RBUASPW    Condition
    3         3309600404   Ground Water Line Split
    2         3309700901   Ground Water Line Split
    2         3309200003   Federal HUC Split
    2         3309500403   Federal HUC Split
    3         4406100000   Channel Islands Split
    2         4406300000   Channel Islands Split
    2         4408130000   Point Mugu Lagoon - 2 parts
    6         4845150000   LA/Santa Ana Regional Split
    2         4845620000   LA/Santa Ana Regional Split
    2         5526620006   Federal HUC Split
    2         5526620008   Federal HUC Split
    2         9609420000   Nevada Border Split

    Notes on Table 2a: 'Ground Water Line' refers to the delineation of Central Valley and Salinas Valley sediments that have historically defined divisions between valley and upland watersheds; 'Regional Splits' refer to watershed boundaries for County-related, administrative purposes; 'Federal HUC Splits' refer to a given State watershed overlapping a federal Hydrologic Unit Code (HUC) boundary (in these cases, an 'artificial' line is inserted within the State watershed to enable accurate cross-references; other 'Splits' refer to the mapping artifact of having an otherwise whole watershed 'split' by State borders and other feature boundaries.
    -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------


    Table 2b.
    Calwater 2.2.1 Examples of Total Acreages for Fragmented Watersheds
    ------------------------------------------------------------------------------------------------------------------
    Count   CALWNUM          Name [Field]                                 Total Acreage
    ---------  ---------------------    ---------------------------------------------------  -----------------------
    6        4845.150000    Central (Split) [Hsaname]                       1944
    3        4406.100000    Anacapa Island [Haname]                       717
    2        4845.620000    La Habra (Split) [Cdfpwsname]            12764
    2        4408.130000    Point Mugu Lagoon [Hsaname]              358
    2        4406.300000    Santa Barbara Island [Haname]              654

    3        3309.600404    Sweetwater Creek [Cdfpwsname]          6551
    2        3309.110000    Neponset [Hsaname]                          73160
    2        3309.700901    Crazy Horse Canyon [Cdfpwsname]       2281

    3        5506.100000    Shasta Lake [Haname]                        28170
    2        5514.230000    Folsom Reservoir [Hsaname]               11026
    3        5518.120000    Oroville Reservoir [Hsaname]              15470

    2        7554.210000    Isabella Reservoir [Hsaname]              11506

    2        9609.420000    Shoshone [Hsaname]                       496814


    Note on Table 2b: Count = Number of watershed polygon fragments.
    Users must account for these and other cases when calculating
    watershed acreages by summing individual polygon areas.
    ---------------------------------------------------------------------------------------------------------------
    ---------------------------------------------------------------------------------------------------------------


    State - Federal Watershed Code Cross-Reference

    Calwater 2.2.1 provides polygon-by-polygon cross-references to federal Sub-Basin codes in its ArcInfo Polygon Attribute Table (.pat), described in the Entity Attribute section of this metadata.  Statewide, some 149 federal SubBasins map 1-to-1 with Calwater watersheds.  Only 18 Calwater watersheds overlap multiple SubBasins; 5 Calwater watersheds overlap three SubBasins.  An exception to the cross-reference design (the SubBasin listed in fields HUC_8 and HUC_8_NAME overlaps 80% or more of the State watershed) is the case of the SEAL_BEACH SubBasin. The majority overlap of the East Coastal Plain HSA is actually with the NEWPORT_BAY SubBasin (a third SubBasin, the SANTA_ANA, also has a minority overlap).  This exception enables all of the names of federal SubBasins in California to be contained in a single field "HUC_8_NAME".  Note that special 'patch' lines have been inserted into State watersheds to account for the major cases of federal HUC boundaries 'splitting' State watersheds, mostly in reservoir shorelines coded as 'watersheds' by SWRCB (see tables that itemize these cases).




    Table 3. State and Federal Hydrologic Codes
    -----------------------------------------------------------------------------------------------------------------------------------------------------
    Key

    HR:      DWR Hydrologic Region (1->10)
    RB:      Regional Water Quality Control Board (1->9)
    BC:      DWR Basin Code (1-letter; Bulletin 130-85; Surface Water data)
    AC:      DWR Areal Code (1-letter; Areal Designation Map; Climate, Ground Water)
    HRC:   DWR Hydrologic Region code (2-letter acronym, various pubs.)
    HBPA: SWRCB Hydrologic Basin Planning Area (2-letter acronym)
    SUBR: USGS Hydrologic Unit Code (HUC) Sub-Region; includes border States
    ---

    HR RB BC AC HRC  DWR HR Name        HBPA  SWRCB/RB Name      SUBR
    -- -- -- -- ---  -----------------  ----  -----------------  --------------
    1   1  F  F  NC  North Coast         NC   North Coast        1801,1710
    2   2  E  E  SF  San Francisco Bay   SF   San Francisco Bay  1805
    3   3  D  T  CC  Central Coast       CC   Central Coast      1806
    4   4  Z  U  SC  South Coast         LA   Los Angeles        1807
    5   5  A  A  SR  Sacramento River    SB   Sacramento Basin   1802
    6   5  B  B  SJ  San Joaquin River   SJ   San Joaquin        1804
    7   5  C  C  TL  Tulare Lake         TL   Tulare Lake        1803
    8   6  G  G  NL  North Lahontan      NL   North Lahontan     1808,1604,1605
    9   6  V  W  SL  South Lahontan      SL   South Lahontan     1809,1606
    10  7  W  X  CR  Colorado River      CR   Colorado River     1810,1503
    --    8  Y  Y  --  (not defined)       SA   Santa Ana          1807
    --    9  X  Z  --  (not defined)       SD   San Diego          1807

    HR SUBR  Federal HUC Hydrologic Sub-Region Name (Remarks)
    ---    --------    ---------------------------------------------------------------------------------------
    1    1801    Klamath-Northern California Coastal (incl. upper Klamath, OR)
    1    1710    Oregon-Washington Coastal (minor CA portion of OR drainages)
    2    1805    San Francisco Bay
    3    1806    Central California Coastal
    4    1807    Southern California Coastal
    5    1802    Sacramento
    6    1804    San Joaquin
    7    1803    Tulare-Buena Vista Lakes
    8    1808    North Lahontan (incl. portions of NV basins draining into CA)
    8    1604    Black Rock Desert-Humboldt (minor CA portion of NV basins)
    8    1605    Central Lahontan (includes Tahoe basin and portions of NV)
    8    1712    Oregon Closed Basins (minor CA portion near Goose Lake)
    9    1809    Northern Mojave-Mono Lake (minor NV portions included)
    9    1606    Central Nevada Desert Basins (minor CA portion)
    10   1810    Southern Mojave-Salton Sea
    10   1503    Lower Colorado (includes CA portion west of Colorado River)

    -----------------------------------------------------------------------------------------------------------------------------------------------------------
    -----------------------------------------------------------------------------------------------------------------------------------------------------------


    Table 4:
    Calwater 2.0 (DWR) and Calwater 2.2 (CDF, SWRCB) Coding Differences
    at the Hydrologic Sub-Area (HSA) Watershed Level (Level 4).

    Key: 
    Cdfgnum22 = California Department of Forestry (CDF) watershed ID at Calwater version 2.2 (1999).

    Swrcbnum21, Hsaname = California State Water Resources Control Board (SWRCB) watershed ID and name as published on 
    Hydrologic Basin Planning Area Maps (revised 1986, with exceptions noted in Completeness Report)

    Dwrnum20, Dwrhsaname = California Department of Water Resources (DWR) alternate watershed ID and name at Calwater version 
    2.0 (1998)

    "undefined" = Cases where watersheds designated in levels above the HSA (HU, HA) were not subdivided;
    this occurs in 89 of 116 total cases of code differences between SWRCB (Calwater 2.1) and DWR (Calwater 2.0, 1998).


    Cdfnum22     Swrcbnum21  Hsaname       Dwrnum20       Dwrhsaname
    ----------------------------------------------------------------------------------------------------------------

    3314.520000    314.52    Lake Cachuma  3314.510000    Santa Cruz Creek 
    3309.820000    309.82    Nacimiento Res3309.810000    Atascadero
    3309.830000    309.83    San Antonio Re3309.810000    Atascadero

    8637.320000    637.32    Eagle Lake    8637.310000    undefined

    5527.200000    527.20    undefined     5527.100000    Goose Lake
    5506.100000    506.10    undefined     5506.200000    Shasta Lake
    5508.100002    508.10    undefined     5572.000000    undefined
    5524.610000    524.61    Whiskeytown L.5524.630000    Middle Clear
    5508.100001    508.10    undefined     5571.000000    undefined
    5508.200000    508.20    undefined     5571.000000    undefined
    5518.410000    518.41    Lake Almador  5518.440000    Mount Harkness
    5504.200001    504.20    undefined     5571.000000    undefined
    5504.200002    504.20    undefined     5572.000000    undefined
    5504.310000    504.31    Kendrick Cr.  5571.000000    undefined
    5504.100000    504.10    undefined     5571.000000    undefined
    5504.320000    504.32    Black Butte L.5571.000000    undefined
    5520.210000    520.21    Colusa Trough 5571.000000    undefined
    5520.220000    520.22    Orland        5571.000000    undefined
    5520.400001    520.40    undefined     5572.000000    undefined
    5518.120000    518.12    Oroville Res. 5518.110000    Reservoir Drain
    5520.400002    520.40    undefined     5571.000000    undefined
    5522.220000    522.22    StonyGorge Res5522.240000    Briscoe Creek
    5515.400000    515.40    undefined     5572.000000    undefined
    5522.330000    522.33    East Park Res.5522.310000    Middle Fork Stony
    5520.300000    520.30    undefined     5572.000000    undefined
    5520.100002    520.10    undefined     5571.000000    undefined
    5515.300000    515.30    undefined     5572.000000    undefined
    5520.100001    520.10    undefined     5572.000000    undefined
    5515.200000    515.20    undefined     5572.000000    undefined
    5513.520000    513.52    Clear Lake    5513.510000    Lower Lake
    5515.100000    515.10    undefined     5572.000000    undefined
    5519.220000    519.22    Pleasant Grove5572.000000    undefined
    5511.300000    511.30    undefined     5571.000000    undefined
    5519.210000    519.21    Lower American5572.000000    undefined
    5514.230000    514.23    Folsom Res.   5514.210000    Green Valley
    5511.200000    511.20    undefined     5571.000000    undefined
    5512.210000    512.21    Lake Berryessa5512.220000    Capell Creek
    6531.120000    531.12    Lower Deer Cr.6552.000000    undefined
    5519.110000    519.11    Franklin      5572.000000    undefined
    5511.100000    511.10    undefined     5571.000000    undefined
    6531.110000    531.11    Herald        6552.000000    undefined
    6531.200000    531.20    undefined     6552.000000    undefined
    6534.420000    534.42    Beardsley L.  6534.410000    Dardenelle
    6531.300000    531.30    undefined     6552.000000    undefined
    6531.400000    531.40    undefined     6552.000000    undefined
    6536.520000    536.52    Cherry Lake   6536.510000    Mercut Peak
    6534.210000    534.21    New Melones Re6534.220000    Angels Camp
    6536.530000    536.53    Lake Eleanor  6536.510000    Mercut Peak
    6535.100000    535.10    undefined     6552.000000    undefined
    6536.320000    536.32    New DonPedro R6536.310000    Sonora
    6535.400000    535.40    undefined     6552.000000    undefined
    6535.200000    535.20    undefined     6552.000000    undefined
    6535.300000    535.30    undefined     6552.000000    undefined
    6575.000000    575.00    undefined     6551.000000    undefined
    6541.100000    541.10    undefined     6551.000000    undefined
    6537.220000    537.22    Lake McClure  6537.210000    Coulterville
    6535.600000    535.60    undefined     6552.000000    undefined
    6535.500000    535.50    undefined     6552.000000    undefined
    6535.900000    535.90    undefined     6552.000000    undefined
    6535.800000    535.80    undefined     6552.000000    undefined
    6535.700000    535.70    undefined     6552.000000    undefined
    6541.200000    541.20    undefined     6551.000000    undefined
    6540.220000    540.22    Bass Lake     6540.210000    Wishon
    6539.120000    539.12    Buchanon Res. 6539.110000    Chapman Creek
    6540.520000    540.52    Huntington L. 6540.510000    Big Creek
    6545.300200    545.30    undefined     6552.000000    undefined
    6545.200000    545.20    undefined     6552.000000    undefined
    6539.320000    539.32    Hensley Res.  6539.310000    Coarse Gold Creek
    6542.320000    542.32    San Luis Res. 6542.310000    Romero Creek
    6545.100000    545.10    undefined     6552.000000    undefined
    6540.120000    540.12    Millerton Lake6540.110000    Fine Gold Creek
    6542.420000    542.42    Los Banos Res.6542.410000    Unknown
    6545.300100    545.30    undefined     6552.000000    undefined
    7551.400000    551.40    undefined     7561.000000    undefined
    7552.320000    552.32    Pine Flat Res.7552.310000    Sycamore Creek
    7551.300000    551.30    undefined     7561.000000    undefined
    7551.600000    551.60    undefined     7561.000000    undefined
    7551.120000    551.12    Lower Panoche 7561.000000    undefined
    7551.200000    551.20    undefined     7561.000000    undefined
    7551.110000    551.11    Huron         7561.000000    undefined
    7551.700000    551.70    undefined     7561.000000    undefined
    7551.500000    551.50    undefined     7561.000000    undefined
    7551.800000    551.80    undefined     7561.000000    undefined
    7558.100000    558.10    undefined     7562.000000    undefined
    7551.900000    551.90    undefined     7561.000000    undefined
    7553.440000    553.44    Lake Kaweah   7553.410000    North Fork Kaweah
    7558.500106    558.50    undefined     7562.000000    undefined
    7558.300000    558.30    undefined     7562.000000    undefined
    7558.500105    558.50    undefined     7562.000000    undefined
    7558.200000    558.20    undefined     7562.000000    undefined
    7558.500202    558.50    undefined     7562.000000    undefined
    7558.500104    558.50    undefined     7562.000000    undefined
    7558.500203    558.50    undefined     7562.000000    undefined
    7558.500101    558.50    undefined     7562.000000    undefined
    7558.500107    558.50    undefined     7562.000000    undefined
    7558.500102    558.50    undefined     7562.000000    undefined
    7558.400000    558.40    undefined     7562.000000    undefined
    7558.500204    558.50    undefined     7562.000000    undefined
    7558.500201    558.50    undefined     7562.000000    undefined
    7558.500103    558.50    undefined     7562.000000    undefined
    7558.500300    558.50    undefined     7562.000000    undefined
    7558.900000    558.90    undefined     7562.000000    undefined
    7558.800000    558.80    undefined     7562.000000    undefined
    7558.600100    558.60    undefined     7562.000000    undefined
    7558.700000    558.70    undefined     7562.000000    undefined
    7554.210000    554.21    Isabella Res. 7554.220000    Kernville
    7557.100002    557.10    undefined     7562.000000    undefined
    7557.100001    557.10    undefined     7562.000000    undefined
    7557.300000    557.30    undefined     7562.000000    undefined
    7558.600203    558.60    undefined     7562.000000    undefined
    7558.600201    558.60    undefined     7562.000000    undefined
    7558.600202    558.60    undefined     7562.000000    undefined
    7557.200103    557.20    undefined     7562.000000    undefined
    7557.200101    557.20    undefined     7562.000000    undefined
    7557.200102    557.20    undefined     7562.000000    undefined
    7557.200200    557.20    undefined     7562.000000    undefined
    --------------------------------------------------------------------------------------------------------
    Notes on Table 4:
    0. Swrcbnum21 (aka 'hydrologic basin code', 'hsa number', etc) is SWRCB's index to USEPA water quality reporting.
    1. The listed Cdfnum22 codes contain a prefix of 1 digit and a suffix of 4 digits to Swrcbnum21 codes
    to account for Hydrologic Region and Regional Water Board coding differences and to account for
    subdivision of watersheds at Level 4 (HSA) into Levels 5 and 6 (SPWS and PWS).
    2. DWR does not generally recognize lake or reservoir shorelines as 'watershed' units in SWRCB coding
    3. Several SWRCB codes in the Central Valley were changed by DWR under the above MOU at Calwater version 2.0
    and reinserted by SWRCB at version 2.1.
    4. Some codes were added to the 1986 SWRCB set by CDF and DWR during the production of Calwater 2.2
    5. The majority of code differences occur in the Central Valley floor (SWRCB's 500-series coding).
    6. DWR-alternate names for watersheds at the Hydrologic Unit (HU) and Hydrologic Area (HA) Level are not shown here.
    At the HU Level, DWR effected 6 HU name changes to the existing set of 31 SWRCB HU names.
    At the HA Level, differences between SWRCB and DWR names involve either a DWR name entry for an undefined SWRCB watershed 
    or a change of an existing SWRCB HA name.  All coding and naming is in the Calwater 2.2.1 polygon attribute table         
    "calw221.pat".

    See:
    Operating Understanding Between the State Water Resources Control Board
    and the Department of Water Resources Regarding Basin Planning Boundaries (1976)

    and

    Memorandum of Understanding on the Use and Maintenance of the 
    California Watershed Map (state and federal signatory agencies, 1998 - 2000)
    --------------------------------------------------------------------------------------------------------
  Completeness_Report:
    State Watershed Coding

    All watershed polygons defined by Calwater 2.2.1 within the State of California boundary are named and coded.  Portions of watersheds physically extending beyond the State boundary are not mapped by Calwater 2.2.1 and are explicity depicted as such on the map.

    In Calwater 2.2.1 all ten of the State of California's Hydrologic Regions are completely subdivided into a total of 190 Hydrologic Units (there are only 185 Hydrologic Unit names - see Logical Consistency Report).  However, not all Hydrologic Units are subdivided into Hydrologic Areas, not all Hydrologic Areas are subdivided into Hydrologic Sub-Areas, nor are subdivisions complete for the entire State at the Super-Planning and Planning Watershed levels.  Some PWS watersheds (Level 6) exhibit 'skipping' of upper Levels in their coding.  Completeness of coding at the Hydrologic Unit (HU) Level is described in detail below.
    --

    Completeness Report on Calwater 2.2.1 
    State of California Hydrologic Unit (HU) Coding

    Summary:
    Total Cases: 20
    Descriptive categories:

    1) HUs not divided into Hydrologic Areas (HA) nor Hydrologic Sub-Areas (HSA)
    by SWRCB on Hydrologic Basin Planning Area (HBPA) Maps.

    2) Undivided HUs from (1) later subdivided by CDF and/or DWR at Super-Planning Watershed (SPWS) or Planning Watershed (PWS) 
    Levels (5 and 6, respectively). For this item and (1) above, 
    the California Department of Fish and Game (DFG) entered "undefined" as value in appropriate name fields.

    3) Boundary, name, and code modifications after 1986 revision of HBPA Maps.

    4) New name and/or code introductions by CDF and/or DWR into SWRCB codeset at Calwater version 2.2

    Confirmation with local Regional Water Quality Control Board staff is recommended for all cases.
    =====

    Case 1: 
    RBU 4401; PITAS POINT HU; outside of CDF Calwater scope;
    CDF did not subdivide at SPWS (Level 5) but did subdivide at PWS (Level 6).
    Two undocumented names: Madriano Canyon, Padre Juan Canyon
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME
    =====

    Case 2:
    RBU 4407; undocumented boundary change,
    HU name and HU code: BUENAVENTURA HU;
    boundaries differ from SWRCB LA HBPA Map (1986);
    "Buenaventura" name not found in Map legend.
    =====

    Case 3:
    RBU 4410; undocumented boundary change, name, and code;
    OXNARD HU; reconfigured from existing Oxnard Plain HA (403.10)
    and Oxnard HSA (403.11) and Pleasant Valley HSA (403.12)
    "OXNARD HU" not found on SWRCB LA HBPA Map (1986).
    =====

    Case 4: 
    RBU 3313; SAN ANTONIO HU;
    Not subdivided into HA or HSA by SWRCB on Central Coast HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    =====

    Case 5:
    RBU 3308; SANTA LUCIA HU;
    Not subdivided into HA or HSA by SWRCB on Central Coast HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    =====

    Case 6:
    RBU 3307; CARMEL RIVER HU;
    Not subdivided into HA or HSA by SWRCB on Central Coast HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    =====

    Case 7:
    RBU 3306; BOLSA NUEVA HU;
    Not subdivided into HA or HSA by SWRCB on Central Coast HBPA Map (1986).
    CDF did not subdivide at SPWS (Level 5) but did subdivide and name at PWS,
    (Level 6).
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME
    =====

    Case 8: 
    RBU 1110; EUREKA PLAIN HU (Humboldt Bay & tributaries);
    Not subdivided into HA or HSA by SWRCB on North Coast HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    =====

    Case 9: 
    RBU 1101; WINCHUCK RIVER HU (Oregon Border);
    Not subdivided into HA or HSA by SWRCB on North Coast HBPA Map (1986).
    CDF did not subdivide at SPWS (Level 5) but did subdivide and name at PWS,
    (Level 6).
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME
    =====

    Case 10:
    RBU 8642; COWHEAD LAKE HU;
    RBU 8640; DUCK FLAT HU;
    Not subdivided into HA or HSA by SWRCB on North Lahontan HBPA Map (1986).
    CDF did not subdivide at SPWS (Level 5) but did subdivide and name at PWS,
    (Level 6).
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME
    =====

    Case 11:
    RBU 8636; LITTLE TRUCKEE RIVER HU;
    RBU 8638; MADELINE PLAINS HU;
    RBU 8637; SMOKE CREEK HU;
    Not subdivided into HA or HSA by SWRCB on North Lahontan HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    =====

    Case 12:
    RBU 5510; SACRAMENTO DELTA HU (north portion of Legal Delta);
    RBU 6544; SAN JOAQUIN DELTA HU (south portion of Legal Delta)
    Not subdivided into HA or HSA by SWRCB on
    Sacramento and San Joaquin HBPA Maps (1986).
    Not subdivided by CDF.
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME, PWSNAME
    See "Legal Delta" language in California Water Code.
    =====

    Case 13:
    RBU 6538; MARIPOSA HU
    RBU 6543; NORTH DIABLO RANGE HU;
    Not subdivided into HA or HSA by SWRCB on San Joaquin HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    c. Add note to Calwater 2.2.1 metadata
    =====

    Case 14: 
    RBU 6571; LOWER CALAVERAS HU;
    Undocumented boundary, code, and name.  Polygon size is equivalent to a PWS.
    "LOWER CALAVERAS HU" does not appear on San Joaquin HBPA Map (1986).
    Apparently is a reconfiguration of UPPER CALAVERAS HU (533.00),
    NORTH VALLEY FLOOR HU (531.00), and Lower Calaveras HA (531.30).
    DFG Entered "undefined" for HANAME, HSANAME, SPWSNAME, PWSNAME
    Need to reconcile actual, valid Lower Calaveras HA (IDNUM 6531.30000)
    =====

    Case 15:
    RBU 9601; MONO HU;
    RBU 9604; FISH LAKE HU;
    RBU 9605; DEEP SPRINGS HU;
    Not subdivided into HA or HSA by SWRCB on South Lahontan HBPA Map (1986).
    Subdivided, coded, and named by CDF into SPWS and PWS.
    DFG entered "undefined" for HANAME, HSANAME
    =====

    Case 16:
    RBU 9623; UPPER CACTUS HU;
    Not subdivided into HA or HSA by SWRCB on North Lahontan HBPA Map (1986).
    CDF did not subdivide at SPWS (Level 5) but did subdivide and name at PWS,
    (Level 6).
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME
    =====

    Case 17:
    RBU 9610,11,12,14,16,17,18,19,27,29; PAHRUMP HU and 9 Others:
    Not subdivided into HA or HSA by SWRCB on
    Sacramento and San Joaquin HBPA Maps (1986).
    Not subdivided by CDF.
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME, PWSNAME
    =====

    Case 18:
    RBU 4912 SAN DIEGO BAY HU;
    Undocumented designation, name, and code.
    "SAN DIEGO HU" not found on SWRCB SD HBPA map (1986).
    Not coded or named by DWR nor subdivided by CDF.
    Need to obtain identification code and official name from San Diego Board.
    DFG entered "undefined" for HANAME, HSANAME, SPWSNAME, PWSNAME
    See similar waterbody designations within Calwater codeset
    =====

    Case 19:
    RBU 10701, 02-thru07; 11,12,14,16,18,20,21,24 thru 28; LUCERNE LAKE and 18 Others:
    Hydrologic Region 10 (Regional Water Quality Control Board (7), Colorado River)
    Not subdivided into HA or HSA by SWRCB on Colorado River HBPA Map (1986).
    Not coded or named by DWR and not subdivided by CDF.
    DFG Entered "undefined" for HANAME, HSANAME, SPWSNAME, PWSNAME
    =====

    Case 20:
    RBU 4801; SANTA ANA RIVER HU; Lower Santa Ana HA; Newport Bay HSA (801.14)
    Undocumented boundary, name, and code.
    "Newport Bay HSA 801.14" not found on Santa Ana HBPA Map (1986).
    Obtain boundary, identification code and official name from Santa Ana Board.
    DFG entered "undefined" for SPWSNAME, PWSNAME
    See similar waterbody designations within codeset
    =====
    end Completeness Report on Calwater 2.2.1 Hydrologic Unit (HU) coding
    by pveisze@dfg.ca.gov 20040505

    Note: completeness of coding at the Hydrologic Area (HA) and Hydrologic Sub-Area (HSA) is not provided at this version of the metadata, but would be similar in characteristics to the HU Cases described above.

    Federal Hydrologic Unit Codes (HUC) 

    All of the federal Hydrologic Unit Codes (HUC) intersected by Calwater 2.2.1 designations are cross referenced.  However, not all HUC SubBasins (Huc_8, formerly known as Cataloging Unit (CU)) ascribed to federal Hydrologic Region 18 (California) have a majority of their area within the State boundary.  For example, in the upper Klamath River Basin, SubBasins 18010201, 18010202, and 18010203 fall entirely within the State of Oregon.  Other SubBasins in HUC Hydrologic Regions 15, 16, and 17 (portions of Arizona, Nevada, and Oregon, respectively) also have partial overlap within California (see Supplemental Information, Table 3).

    SubBasin 18070203 (SEAL_BEACH) constitutes the only exception to the rule of listing the majority overlap (80%) of a SubBasin with a Calwater watershed (in the field "HUC_8").  The actual majority overlap of the East Coastal Plain (SWRCBNUM22 = 801.11) is with the NEWPORT_BAY (SubBasin 18070204). This exception enables all other instances of names of California SubBasins to be contained in a single field "HUC_8_NAME".  Fields "HUC_8_ALT2" and "HUC_8_ALT3" indicate minority overlap SubBasins and provide only the numeric SubBasin code.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Watershed boundaries were checked by several reviewers within the California Interagency Watershed Mapping Committee.  Reference sources included USGS 7.5' quads, USGS Digital Elevation Models, USGS Hydrologic Unit Maps, and State of California Regional Water Quality Control Board (RWQCB) Hydrologic Basin Planning Area Maps.  A quanitative analysis of conformance to federal watershed delineation standards is in progress.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report: not applicable
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Title: USGS 7.5' Topographic Maps
          Geospatial_Data_Presentation_Form: map
          Other_Citation_Details: Over 2800 USGS quads were the basis for digitization of watershed boundaries for Calwater version 2.2, as available for the State of California, circa 1993.
          Online_Linkage: http://www.usgs.gov
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: paper maps
      Source_Time_Period_of_Content:
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS 7.5' Topographic Maps
      Source_Contribution: Digitization base for watershed boundaries and names for Calwater 2.2.1, following initial designations from SWRCB Hydrologic Basin Planning Area (HBPA) Maps.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: State of California Regional Water Quality Control Boards
          Originator: California State Water Resources Control Board (SWRCB)
          Publication_Date: 1986
          Title: Hydrologic Basin Planning Area Maps
          Geospatial_Data_Presentation_Form: map
          Series_Information:
            Series_Name: State of California Regional Water Quality Control Board Hydrologic Basin Planning Area Maps
          Publication_Information:
            Publication_Place: Sacramento, California
            Publisher: State Water Resources Control Board, Surveillance and Monitoring Section
          Other_Citation_Details: 12 maps in the series; one for each of 9 Regional Water Quality Control Boards (3 maps cover the Central Valley Region (5)); See HBPA field in Entity Attribute section.  At the 1986 Revision, watershed names and boundaries shown on the maps are in accordance with and agreement with the California Department of Water Resources and the U.S. Geological Survey.
      Source_Scale_Denominator: 500000
      Type_of_Source_Media: paper maps
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Multiple_Dates/Times:
            Single_Date/Time:
              Calendar_Date: 197304
            Single_Date/Time:
              Calendar_Date: 197607
            Single_Date/Time:
              Calendar_Date: 198608
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: State of California Regional Water Quality Control Board Hydrologic Basin Planning Area Maps
      Source_Contribution: 12 maps in the series (last revised in 1986); were initial basis for digitizing Calwater watershed boundaries, names, and codes in versions 2.2 (September, 1999) and prior.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1994
          Title: Hydrologic units maps of the Conterminous United States
          Edition: 1
          Geospatial_Data_Presentation_Form: vector digital data
          Series_Information:
            Series_Name: Hydrologic Unit Maps of the Conterminous United States
          Publication_Information:
            Publication_Place: Reston, Virginia
            Publisher: U.S. Geological Survey
          Online_Linkage: http://water.usgs.gov/GIS/metadata/usgswrd/huc250k.html
      Source_Scale_Denominator: 250000
      Type_of_Source_Media: digital vector data
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1994
      Source_Citation_Abbreviation: USGS Hydrologic Unit Maps
      Source_Contribution: Reference digital data layer for federal Hydrologic Unit Codes contained in cross-reference fields "HUC_8" etc in Calwater 2.2.1.
    Process_Step:
      Process_Description:
        Calwater version 1.2 was completed in 1995 by Tierra Data Systems, California, under contract to the California Department of Forestry and Fire Protection (CDF).  Linework was captured by overlaying SWRCB Hydrologic Basin Planning Area Maps on 1:24,000-scale, 7.5' USGS quads and then redrawing and digitizing lines
        to match watershed boundaries interpreted from elevation contours.  To the four existing SWRCB watershed levels: Hydrologic Regions (Level 1), Hydrologic Units (Level 2), Hydrologic Areas (Level 3), and Hydrologic Sub-Areas (Level 4), CDF created two additional levels to reference their Timber Harvest Plan tracking and other landscape analyses: the Super Planning Watershed (SPWS, Level 5) and the Planning Watersheds (PWS, Level 6).
      Process_Date: 1995
      Process_Contact:
        Contact_Information:
          Contact_Organization_Primary:
            Contact_Organization: Tierra Data Systems, California
            Contact_Person: Jim Kellogg
          Contact_Address:
          Contact_Instructions: Contractor to the California Department of Forestry and Fire Protection (CDF), 1993/4.
    Process_Step:
      Process_Description:
        In 1997, the California Department of Water Resources (DWR) initiated adoption of only the first four Levels of Calwater 1.2 for maps associated with their California Water Plan updates of 1998.  In addition, DWR worked with the Stephen P. Teale Data Center (Teale) GIS Solutions Group to integrate so-called 'groundwater lines' which define the perimeters of the Central Valley and the Salinas Valley.  DWR and Teale also conducted extensive quality assurance on watershed delineation and coding.  CDF and DWR also worked with Teale to revise Calwater with inputs from the USDA Forest Service, principally the Klamath, Lassen, Mendocino, Shasta-Trinity, and Six Rivers National Forests.

        Throughout the integration of various linework sources, Teale, DWR, and DFG performed checks of watershed delineation accuracy (against USGS quads and USGS Digital Elevation Models).  Code and watershed name uniqueness was checked by frequency tabulation.
      Process_Date: 1997 - 1999
      Process_Contact:
        Contact_Information:
          Contact_Organization_Primary:
            Contact_Organization: State of California Stephen P. Teale Data Center
            Contact_Person: GIS Solutions Group
          Contact_Address:
          Contact_Instructions:
            After July 1, 2001 contact California Resources Agency, California Spatial Information Library, Sacramento:
            www.gis.ca.gov
    Process_Step:
      Process_Description:
        Calwater 2.2 - to - HUC Crosswalk (State - Federal Hydrologic Code Cross Reference)

        The cross-reference of State of California watershed codes in Calwater 2.2 to federal Hydrologic Unit Codes (HUC) was developed with the following rules:

        For a given [state] Calwater watershed, overlapping [federal] Hydrologic Unit Codes (at the 8-digit SubBasin (formerly Cataloging Unit [CU] level) are listed up to a maximum of 80% of the Calwater watershed OR three SubBasins, whichever comes first.

        For example:

        Where there are two SubBasin codes (HUC_8_ALT2, HUC_8_ALT3) listed for a given Calwater code (only 17 watersheds fit this criterion), the largest overlapping SubBasin alone constitutes less than 80% of the Calwater watershed, but combining a second SubBasin then provides overlap of at least 80% of the Calwater watershed.

        Where there are three SubBasin codes listed for a given Calwater watershed (only 1 watershed fits this criterion, the East Coastal Plain, SWRCBNUM21 =  801.11, Orange County),  The largest 2 SubBasins together overlap less than 80% of the Calwater watershed; combining a third SubBasin code produces additional overlap.
      Process_Date: 1999
      Process_Contact:
        Contact_Information:
          Contact_Organization_Primary:
            Contact_Organization: State of California Stephen P. Teale Data Center
            Contact_Person: GIS Solutions Group
          Contact_Address:
    Process_Step:
      Process_Description:
        Calwater 2.2.1  Process Step Summary
        (May 28, 2004 Update, "calw221")
        1. Datum conversion: NAD 27 to NAD 83 (Teale Albers Conical Equal-Area Projection)
        2. Watershed Name Fields Re-computation; values adjusted
        3. ACRES Field Re-computation after re-projection
        4. Dataset Identifier changed to "calw221"
        5. Added 2 new fields, renamed 9 existing fields
        6. Renamed federal HUC (Hydrologic Unit Code) cross-reference fields in conformance with Watershed Boundary Dataset (WBD) (values unchanged).
        7. Corrected 1 HUC name ommission and renamed 1 CDFPWSNAME.
        8. Added linework to facilitate dissolve to federal SubBasins on field HUC_8
        9. Spelling corrections on HUNAME
        ----
        1. Datum conversion: ArcInfo coverage calw22 (also known as CALW22A) was reprojected from its original datum / projection to the Teale Albers Conical Equal-Area projection, North American Datum of 83 (NAD 83).  The ArcInfo PROJECT command was used with parameters appended below.  Polygon attribute table fields "AREA" and "PERIMETER" were automatically updated after the BUILD command.

        2. Watershed Name Fields: There are several known instances of replicated watershed names at various Levels in the Calwater coding system, a legacy of State and Regional Water Quality Control Board maps (see SWRCB MOU with DWR and USGS in 1986).  The version of Calwater 2.2 originally released by the Teale GIS Solutions Group (September 1999) indicated this condition with entries of the form "SAME AS HUNAME", "SAME AS HANAME", etc in watershed name fields.  This was problematic for users dissolving polygon boundaries at various Levels.  In this 2004 version "calw221" watershed names as published by SWRCB were restored to their appropriate fields.  A name value of "undefined" was entered where a given watershed polygon was not divided at a particular level.  Users are advised to rely on watershed codes rather than names (with noted exceptions, see Logical Consistency Report) as the most consistent, unique watershed identifiers at all levels.

        3. ACRES Field: The polygon attribute table field "ACRES" was manually re-computed after reprojection.  There are cases where watersheds polygons are fragmented by State, County and other boundaries.  Watershed acreage totals originally replicated in each of a watershed's component polygon records were replaced by values specific to the individual polygons.  This avoids the risk of double-counting when summing watershed areas.

        Datum Conversion Parameters for the PROJECT Command

        INPUT
        PROJECTION ALBERS
        SPHEROID CLARKE1866
        DATUM NAD27
        UNITS METERS
        PARAMETERS
        34 00 00
        40 30 00
        -120 00 00
        00 00 00
        0
        -4000000
        OUTPUT
        PROJECTION ALBERS
        SPHEROID GRS80
        DATUM NAD83
        UNITS METERS
        PARAMETERS
        34 00 00
        40 30 00
        -120 00 00
        00 00 00
        0
        -4000000
        END

        4. Dataset identifier: After the above steps, the output coverage was renamed from "calw22" to "calw221".

        5. Added 2 new fields, renamed 9 existing fields:

        a. Create new field "CALWNUM";
        Explanation: This field is the primary key for Calwater 2.2.1; legacy coding from Calwater 2.2 is preserved in field "CDFNUM22";
        The CALWNUM field will contain coding changes at future versions.

        a.2. Create new field "SWRCBNUM21"
        Explanation: This field matches the watershed codes published in the State Water Resources Control Board's
        Hydrologic Basin Planning Area maps (12 maps in the series, last revised 1986), with some exceptions as noted in
        Completeness Report of this metadata.  Identifies SWRCB as originator of the codes (excluding exceptions)
        at Calwater version 2.2.

        b. Copy IDNUM to CALWNUM;
        This action preserved coding from Calwater version 2.2.

        c. Rename IDNUM to CDFNUM22;
        Identifies CDF as the originator of the codes at Calwater version 2.2.

        d. Create new field "DWRNUM20";
        Identifies DWR as the originator of the codes at Calwater version 2.0.
        Note: DWRNUM20 coding is incomplete for differentiation of some DWR-named watersheds at the HA and HSA levels.

        e. Copy IDNUM_20 to DWRNUM20;
        This action preserved DWR coding from Calwater version 2.0.

        f. Select DWRNUM20 = null; Calculate DWRNUM20 = CALWNUM;
        Explanation: DWR watershed identifiers differ from those of SWRCB; where different, the values are preserved;
        where the DWR and SWRCB agree on the values, the field values are now actually equal.  See Calwater MOU of 1998.

        g. Rename HUNAME_20 to DWRHUNAME
        Explanation: This field has a new name to identify the data source

        h. Rename HANAME_20 to DWRHANAME;
        Explanation: This field has a new name to identify the data source

        i. Rename HSANAME_20 to DWRHSANAME;
        Explanation: This field has a new name to identify the data source

        j. Rename SPWSNAME to CDFSPWNAME;
        Explanation: This field has a new name to identify the data source

        k. Rename PWSNAME to CDFPWSNAME;
        Explanation: This field has a new name to identify the data source

        6. Renamed federal HUC fields: At Calwater version 2.2.1, the "CU" field (formerly representing the Cataloging Unit level of HUC, was renamed to "Huc_8", now representing the "SubBasin" level, per FGDC Proposal, Version 1.0: "Federal Standards for Delineation of Hydrologic Unit Boundaries" (Section 7.2.1, March 1, 2002).  Associated fields formerly named "CUNAME", "CU2", and "CU3" were changed to "HUC_8_NAME", "HUC_8_ALT2", and "HUC_8_ALT3", respectively.  See Cross-Reference Section of this metadata.

        7. Corrected  HUC_8 name ommission "SEAL BEACH"; added CDFPWSNAME "Sterling Mountain".

        8. Added linework to facilitate dissolve to federal SubBasins on field HUC_8 or HUC_8_NAME:
        a.) 5/25/2004: Downloaded federal watershed boundaries from ftp://water.usgs.gov/pub/dsdl/huc250.e00.gz
        b.) 5/27/2004: Using ArcInfo / ArcEdit / EditFeature Poly, selected major cases of State watershed polygons that overlapped multiple federal SubBasins (mostly reservoir outlines).
        c.) Issued the ArcEdit SPLIT command for each selected case, and screen-digitized a line following associated USGS "huc250" (see Cross References) boundary.
        d.) In the Arc Attribute Table, calculated item LEVEL = 0 for each added 'split' line.
        e.) Edited the HUC_8 and HUC_8_NAME polygon attributes to identify each federal SubBasin overlapping the subject State watershed
        f.) Recomputed the ACRES field on each polygon resulting from SPLIT command (using the ArcView 3.3-bundled script "View.CalculateAcreage" (calcacre.ave))
        g.) 5/27/04: issued final BUILD commands with POLY and LINE options.

        9. Spelling corrections on HUNAME:
        a.) Removed extra blank in "SANTA MARIA" value for HUNAME which was causing improper sort order
        b.) Corrected spelling from "BOLSA NEUVA" to "BOLSA NUEVA".
      Process_Date: 2004
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: GIS Research Manager
            Contact_Organization: California Department of Fish and Game
          Contact_Address:
            Address_Type: mailing and physical address
            Address: State of California
            Address: Department of Fish and Game
            Address: 1807  13th Street, Suite 201
            City: Sacramento
            State_or_Province: California
            Postal_Code: 95814
            Country: USA
          Contact_Voice_Telephone: (916) 323-1667
          Contact_Facsimile_Telephone: (916) 323-1431
          Contact_Electronic_Mail_Address: pveisze@dfg.ca.gov
          Contact_Electronic_Mail_Address: geodata@dfg.ca.gov
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete chain
      Point_and_Vector_Object_Count: 21059
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Label point
      Point_and_Vector_Object_Count: 7035
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
      Point_and_Vector_Object_Count: 7035
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Point
      Point_and_Vector_Object_Count: 61
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Label point
      Point_and_Vector_Object_Count: 0
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Albers Conical Equal Area
        Albers_Conical_Equal_Area:
          Standard_Parallel: 34.000000
          Standard_Parallel: 40.500000
          Longitude_of_Central_Meridian: -120.000000
          Latitude_of_Projection_Origin: 0.000000
          False_Easting: 0.000000
          False_Northing: -4000000.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 0.002048
          Ordinate_Resolution: 0.002048
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257222
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
    Depth_System_Definition:
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: calw221.aat
      Entity_Type_Definition: arc attribute table (boundary level classification)
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: FNODE#
      Attribute_Definition: Internal node number for the beginning of an arc (from-node).
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: TNODE#
      Attribute_Definition: Internal node number for the end of an arc (to-node).
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: LPOLY#
      Attribute_Definition: Internal node number for the left polygon.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: RPOLY#
      Attribute_Definition: Internal node number for the right polygon.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: LENGTH
      Attribute_Definition: Length of feature in internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: CALW221#
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: CALW221-ID
      Attribute_Definition: User-defined feature number.
      Attribute_Definition_Source: ESRI
    Attribute:
      Attribute_Label: LEVEL
      Attribute_Definition: Ordinal scale, Level 1 to Level 6; Level 1 indicates that a given boundary segment separates the largest polygons (Hydrologic Regions) in the watershed hierarchy; Level 6 indicates separation of the smallest units (Planning Watersheds)
      Attribute_Definition_Source: California Interagency Watershed Mapping Committee
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 1
          Enumerated_Domain_Value_Definition: Hydrologic Region (HR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 2
          Enumerated_Domain_Value_Definition: Hydrologic Unit (HU)
        Enumerated_Domain:
          Enumerated_Domain_Value: 3
          Enumerated_Domain_Value_Definition: Hydrologic Area (HA)
        Enumerated_Domain:
          Enumerated_Domain_Value: 4
          Enumerated_Domain_Value_Definition: Hydrologic Sub-Area (HSA)
        Enumerated_Domain:
          Enumerated_Domain_Value: 5
          Enumerated_Domain_Value_Definition: Super-Planning Watershed (SPWS)
        Enumerated_Domain:
          Enumerated_Domain_Value: 6
          Enumerated_Domain_Value_Definition: Planning Watershed (PWS)
        Enumerated_Domain:
          Enumerated_Domain_Value: 0
          Enumerated_Domain_Value_Definition: Line inserted into a State watershed polygon to enable accurate dissolve to a federal watershed
          Enumerated_Domain_Value_Definition_Source: Line was screen-digitized following USGS Hydrologic Unit Code boundaries (see Cross-Reference section of this metadata)
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: The LEVEL value may be used to cartographically symbolize deceasing boundary line weights from the Hydrologic Region down to the Planning Watershed
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: calw221.pat
      Entity_Type_Definition: polygon attribute table (watershed codes and names)
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: AREA
      Attribute_Definition: Area of feature in internal units squared.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: PERIMETER
      Attribute_Definition: Perimeter of feature in internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: CALW221#
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: CALW221-ID
      Attribute_Definition: User-defined feature number.
      Attribute_Definition_Source: ESRI
    Attribute:
      Attribute_Label: CALWNUM
      Attribute_Definition: Unique identifier (type=character) of watershed polygon; concatenates HR+RB+HU+"."+HA+HSA+SPWS+PWS
      Attribute_Definition_Source: HR (Calif. Dept. Water Resources); RB (State and Regional Water Boards); SPWS, PWS (Dept. Forestry & Fire Protection)
      Attribute_Domain_Values:
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Unique (with exceptions as noted); not all watershed levels are consistently subdivided; see Data Quality element
    Attribute:
      Attribute_Label: SWRCBNUM21
      Attribute_Definition: Unique identifier (type=character) of watershed polygon as published by SWRCB on HBPA Map Series (revised 1986); concatenates RB+HU+"."+HA+HSA
      Attribute_Definition_Source: State and Regional Water Quality Control Boards
      Attribute_Domain_Values:
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Known changes by CDF and DWR in SWRCB codeset of 1986; see Completeness Report in this metadata; New codes added, boundaries reconfigured; see also codes for SPWS and PWS
    Attribute:
      Attribute_Label: HRC
      Attribute_Definition: Hydrologic Region Code
      Attribute_Definition_Source: California Department of Water Resources
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: NC
          Enumerated_Domain_Value_Definition: North Coast
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: SF
          Enumerated_Domain_Value_Definition: San Francisco Bay
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: CC
          Enumerated_Domain_Value_Definition: Central Coast
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: SC
          Enumerated_Domain_Value_Definition: South Coast
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: SR
          Enumerated_Domain_Value_Definition: Sacramento River
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: SJ
          Enumerated_Domain_Value_Definition: San Joaquin River
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: TL
          Enumerated_Domain_Value_Definition: Tulare Lake
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: NL
          Enumerated_Domain_Value_Definition: North Lahontan
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: SL
          Enumerated_Domain_Value_Definition: South Lahontan
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: CR
          Enumerated_Domain_Value_Definition: Colorado River
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Unique 2-character code; Acronym for each of California's ten Hydrologic Region names
    Attribute:
      Attribute_Label: HBPA
      Attribute_Definition: Hydrologic Basin Planning Area
      Attribute_Definition_Source: SWRCB and Regional Water Quality Control Boards
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: NC
          Enumerated_Domain_Value_Definition: North Coast
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: SF
          Enumerated_Domain_Value_Definition: San Francisco Bay
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: CC
          Enumerated_Domain_Value_Definition: Central Coast
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: LA
          Enumerated_Domain_Value_Definition: Los Angeles
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: SB
          Enumerated_Domain_Value_Definition: Sacramento Basin
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: SJ
          Enumerated_Domain_Value_Definition: San Joaquin
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: TL
          Enumerated_Domain_Value_Definition: Tulare Lake
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: NL
          Enumerated_Domain_Value_Definition: North Lahontan
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: SL
          Enumerated_Domain_Value_Definition: South Lahontan
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: CR
          Enumerated_Domain_Value_Definition: Colorado River
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: SA
          Enumerated_Domain_Value_Definition: Santa Ana
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: SD
          Enumerated_Domain_Value_Definition: San Diego
          Enumerated_Domain_Value_Definition_Source: State Water Resources Control Board and Regional Water Quality Control Board
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Unique 2-character code; Acronym for each of 12 Regional Water Quality Control Board names
    Attribute:
      Attribute_Label: RBU
      Attribute_Definition: Concatenates HR+RB+HU into single integer
    Attribute:
      Attribute_Label: RBUA
      Attribute_Definition: Concatenates HR+RB+HU+HA
    Attribute:
      Attribute_Label: RBUAS
      Attribute_Definition: Concatenates HR+RB+HU+HA+HSA
    Attribute:
      Attribute_Label: RBUASP
      Attribute_Definition: Concatenates HR+RB+HU+HA+HSA+SPWS
    Attribute:
      Attribute_Label: RBUASPW
      Attribute_Definition: Concatenates HR+RB+HU+HA+HSA+SPWS+PWS
    Attribute:
      Attribute_Label: HR
      Attribute_Definition: Hydrologic Region (as a number)
      Attribute_Definition_Source: California Departmento of Water Resources
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 1
          Enumerated_Domain_Value_Definition: North Coast
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 2
          Enumerated_Domain_Value_Definition: San Francisco Bay
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 3
          Enumerated_Domain_Value_Definition: Central Coast
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 4
          Enumerated_Domain_Value_Definition: South Coast
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 5
          Enumerated_Domain_Value_Definition: Sacramento River
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 6
          Enumerated_Domain_Value_Definition: San Joaquin River
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 7
          Enumerated_Domain_Value_Definition: Tulare Lake
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 8
          Enumerated_Domain_Value_Definition: North Lahontan
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 9
          Enumerated_Domain_Value_Definition: South Lahontan
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
        Enumerated_Domain:
          Enumerated_Domain_Value: 10
          Enumerated_Domain_Value_Definition: Colorado River
          Enumerated_Domain_Value_Definition_Source: California Department of Water Resources (DWR)
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Unique numeric code; Enumerates California's ten Hydrologic Regions
    Attribute:
      Attribute_Label: RB
      Attribute_Definition: Region Water Quality Control Board number
      Attribute_Definition_Source: State Water Resources Control Board; see also Supplemental Information element
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: 1
          Enumerated_Domain_Value_Definition: North Coast
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 2
          Enumerated_Domain_Value_Definition: San Francisco Bay
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 3
          Enumerated_Domain_Value_Definition: Central Coast
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 4
          Enumerated_Domain_Value_Definition: Los Angeles
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 5
          Enumerated_Domain_Value_Definition: Central Valley (spans DWR HRs 5, 6, and 7; HBPAs SB, SJ, and TL)
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 6
          Enumerated_Domain_Value_Definition: San Joaquin
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 7
          Enumerated_Domain_Value_Definition: Tulare Lake
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 8
          Enumerated_Domain_Value_Definition: North Lahontan
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
        Enumerated_Domain:
          Enumerated_Domain_Value: 9
          Enumerated_Domain_Value_Definition: South Lahontan
          Enumerated_Domain_Value_Definition_Source: Regional Water Quality Control Board
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Unique numeric code; Enumerates each of California's nine Regional Water Quality Control Boards (RWQCB); Note: RB 5 maintains three subregional offices equivalent to DWR HRs
    Attribute:
      Attribute_Label: HU
      Attribute_Definition: Hydrologic Unit
      Attribute_Definition_Source: State Water Resources Control Board
    Attribute:
      Attribute_Label: HA
      Attribute_Definition: Hydrologic Area
      Attribute_Definition_Source: State Water Resources Control Board
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Calwater 2.2.1
          Codeset_Source: Interagency Watershed Mapping Committee
    Attribute:
      Attribute_Label: HSA
      Attribute_Definition: Hydrologic Sub-Area
      Attribute_Definition_Source: State Water Resources Control Board
    Attribute:
      Attribute_Label: SPWS
      Attribute_Definition: Super-Planning Watershed
      Attribute_Definition_Source: California Department of Forestry and Fire Protection
    Attribute:
      Attribute_Label: PWS
      Attribute_Definition: Planning Watershed
      Attribute_Definition_Source: California Department of Forestry and Fire Protection
    Attribute:
      Attribute_Label: HRNAME
      Attribute_Definition: Hydrologic Region Name
      Attribute_Definition_Source: California Department of Water Resources
    Attribute:
      Attribute_Label: RBNAME
      Attribute_Definition: Regional Water Quality Control Board Name
      Attribute_Definition_Source: State Water Resources Control Board
    Attribute:
      Attribute_Label: HBPANAME
      Attribute_Definition: Hydrologic Basin Planning Area Name
      Attribute_Definition_Source: State Water Resources Control Board
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Hydrologic Basin Planning Area
          Codeset_Source: Regional Water Quality Control Boards
    Attribute:
      Attribute_Label: HUNAME
      Attribute_Definition: Hydrologic Unit Name
      Attribute_Definition_Source: State Water Resources Control Board
    Attribute:
      Attribute_Label: HANAME
      Attribute_Definition: Hydrologic Area Name
      Attribute_Definition_Source: State Water Resources Control Board
    Attribute:
      Attribute_Label: HSANAME
      Attribute_Definition: Hydrologic Sub-Area Name
      Attribute_Definition_Source: State Water Resources Control Board
    Attribute:
      Attribute_Label: CDFSPWNAME
      Attribute_Definition: CDF Super-Planning Watershed Name
      Attribute_Definition_Source: California Department of Forestry and Fire Protection
    Attribute:
      Attribute_Label: CDFPWSNAME
      Attribute_Definition: CDF Planning Watershed Name
      Attribute_Definition_Source: California Department of Forestry and Fire Protection
    Attribute:
      Attribute_Label: ACRES
      Attribute_Definition: Acreage of watershed polygon
      Attribute_Definition_Source: Computed from ArcInfo AREA field; Re-computed after reprojection and 'splits' of polygons due to boundary integration
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Rounded to nearest whole acre; Fragmented watersheds (watershed comprised of multiple polygons) must have their total area computed by summing area from each individual polygon
    Attribute:
      Attribute_Label: HUC_8
      Attribute_Definition: SubBasin (USGS Hydrologic Unit Code, HUC)
      Attribute_Definition_Source: U.S. Geological Survey Water Supply Paper 2294, 1986); formerly known as Cataloging Unit (CU)
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Hydrologic Unit Code (Cataloging Unit)
          Codeset_Source: U.S. Geological Survey Water Supply Paper 2294 (1987)
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: majority of overlap by federal Hydrologic Unit Code
    Attribute:
      Attribute_Label: HUC_8_NAME
      Attribute_Definition: SubBasin Name
      Attribute_Definition_Source: U.S. Geological Survey Water Supply Paper 2294, 1986)
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Hydrologic Unit Code (Cataloging Unit)
          Codeset_Source: U.S. Geological Survey
    Attribute:
      Attribute_Label: HUC_8_ALT2
      Attribute_Definition: If populated, is an additional SubBasin that overlaps a State-designated watershed
      Attribute_Definition_Source: Teale GIS Solutions Group
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: 22 known instances of SubBasin codes replicated due to 'split' watersheds (see Logical Consistency); Where populated, 2 or more federal SubBasins overlap a State watershed
    Attribute:
      Attribute_Label: HUC_8_ALT3
      Attribute_Definition: If populated, is a 3rd SubBasin that overlaps a State-designated watershed
      Attribute_Definition_Source: Teale GIS Solutions Group
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Hydrologic Unit Code (Cataloging Unit)
          Codeset_Source: U.S. Geological Survey
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: 6 known instances of SubBasin codes replicated due to 'split' watersheds (see Logical Consistency); Where populated, three federal SubBasins explicitly overlap one State watershed designation
    Attribute:
      Attribute_Label: DWRNUM20
      Attribute_Definition: DWR Alternate watershed identifier
      Attribute_Definition_Source: California Department of Water Resources (DWR), Calwater version 2.0
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Calwater 2.0
          Codeset_Source: California Department of Water Resources
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: Dissolve on this field to get version 2.0 boundaries
    Attribute:
      Attribute_Label: DWRHUNAME
      Attribute_Definition: DWR Alternate Hydrologic Unit Name
      Attribute_Definition_Source: DWR, Calwater 2.0
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Calwater 2.0
          Codeset_Source: California Department of Water Resources
    Attribute:
      Attribute_Label: DWRHANAME
      Attribute_Definition: DWR Alternate Hydrologic Area Name
      Attribute_Definition_Source: DWR, Calwater 2.0
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Calwater 2.0
          Codeset_Source: California Department of Water Resources
    Attribute:
      Attribute_Label: DWRHSANAME
      Attribute_Definition: DWR Alternate Hydrologic Sub-Area Name
      Attribute_Definition_Source: DWR, Calwater 2.0
      Attribute_Domain_Values:
        Codeset_Domain:
          Codeset_Name: Calwater 2.0
          Codeset_Source: California Department of Water Resources
    Attribute:
      Attribute_Label: CDFNUM22
      Attribute_Definition: CDF Unique identifier (character) of watershed polygon; concatenates HR+RB+HU+"."+HA+HSA+SPWS+PWS
      Attribute_Definition_Source: California Department of Forestry and Fire Protection (CDF)
  Overview_Description:
    Entity_and_Attribute_Overview: Codes and names are unique for each watershed polygon (except where noted in Supplemental Information and in Logical Consistency Report).  Polygon attributes indicate varying levels in the State watershed hierarchy (RBU, RBUA, etc) and are provided for users to dissolve polygon boundaries to the desired level.  Cross-references to federal watershed codes and names are also provided.  The "LEVEL" attribute in the arc attribute table may also be used with graduated line weights to cartographically represent the hierarchy of watershed designations.
    Entity_and_Attribute_Detail_Citation: State Water Resources Control Board, California Department of Water Resources, California Department of Forestry and Fire Protection, California Teale GIS Solutions Group, California Department of Fish and Game
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: California Spatial Information Library (CaSIL)
        Contact_Organization: California Resources Agency
      Contact_Position: Metadata Administrator
      Contact_Address:
        Address_Type: mailing and physical address
        Address: California Spatial Information Library
        Address: 900 N Street
        Address: Sacramento, CA 95814
        City: Sacramento
        State_or_Province: California
        Postal_Code: 95814
        Country: USA
      Contact_Voice_Telephone: (916) 653-1369
      Contact_Facsimile_Telephone: (916) 654-5829
      Contact_Electronic_Mail_Address: metadata@gis.ca.gov
  Resource_Description: Downloadable Data
  Distribution_Liability:
    DISCLAIMER
    Neither the State of California Resources Agency, CaSIL nor its contributors shall be held liable for any improper or incorrect use of the information described and/or contained herein and assumes no responsibility for anyone's use of the information.   [Full text of disclaimer is at http://gis.ca.gov/disclaimer.epl]
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: E00
        Transfer_Size: 29.985
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ESRI Shapefile
        Format_Specification: ESRI Shapefile
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: www.gis.ca.gov
          Access_Instructions: Connect to www.gis.ca.gov; navigate to Frequently Accessed Data; select and download dataset "Calwater 2.2.1"
    Fees: none
  Custom_Order_Process:
    Contact California Resources Agency
    California Spatial Information Library (CaSIL)
  Technical_Prerequisites: Familiarity with watershed concepts and ESRI Geographic Information System (GIS) software
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 20041118
Metadata_Reference_Information:
  Metadata_Date: 20041118
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: California Department of Fish and Game
        Contact_Person: GIS Research Manager
      Contact_Position: GIS Service Center
      Contact_Address:
        Address_Type: mailing and physical address
        Address: State of California
        Address: Department of Fish and Game
        Address: 1807  13th Street, Suite 201
        City: Sacramento
        State_or_Province: California
        Postal_Code: CA 95814
        Country: USA
      Contact_Voice_Telephone: 916-323-1667
      Contact_Electronic_Mail_Address: pveisze@dfg.ca.gov
      Contact_Electronic_Mail_Address: geodata@dfg.ca.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Security_Information:
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
