1.0 Identification Information

1.1 Citation Information

1.11 Originator::Interagency California Watershed Mapping Committee

1.12 Title::California Watershed Map (CALWATER 2.0)

1.13 Type of Data::ARC/INFO polygon coverage



Serial Information

1.21 Serial Name::calwater version 2.0

1.22 Issue Identification::calw20



Publication Information

1.23 Publication Place::Sacramento

1.24 Publisher::Interagency California Watershed Mapping Committee (ICWMC)

1.25 Publication Date::1998.09.21 (September 21, 1998)



1.26 Other Citation Details::

The ARC/INFO coverage of CALWATER 2.0 described herein, distributed by the

California Department of Fish and Game (DFG), is called "calw20" and is

dated September 21, 1998 for its boundary data content.  This coverage

was received from the State of California Stephen P. Teale Data Center

GIS Lab (Teale).  Teale is under contract to the California Department of

Water Resources (DWR) for this project; DFG is an in-kind cooperator.



Previous citations as CALWATER 2.0, December 1996, apply to the ARC/INFO

coverage named "cawastat", the source for hardcopy maps distributed by

Teale for review by the State Water Resources Control Board (SWRCB) and

each of the nine Regional Water Quality Control Boards (RWQCB) statewide.

Cross-referenced federal Hydrologic Unit Codes (HUC) and names, also known

as Cataloging Units (CU) were taken from USGS Water Supply Paper 2294

(USGS 1986) and added to calw20.  Details of the cross-referencing process

are given below.



A draft Memorandum of Understanding (MOU) titled "Regarding the Use and

Maintenance of the California Watershed Map" (DWR 3/5/97) has been prepared

for the purpose of promoting the use, management, and maintenance of a

common watershed map of California.  MOU signatories include the following

state and federal agencies with water resources, water quality, soils,

forest, watershed, fish, and wildlife habitat responsibilities.



CALWATER 2.0 should not be confused with CALWATER 2.2, in work by the

ICWMC and Teale.  Calwater 2.2 will contain subdivided CALWATER 2.0

polygons.  See metadata contact below for additional information.



ICWMC Member Agencies:

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)

USDI Geologic Survey (USGS)

USDI Bureau of Reclamation (USBR)

USDI Bureau of Land Management (BLM)

US Environmental Protection Agency (USEPA) Region IX

Stephen P. Teale Data Center (Teale)



1.3 Data Set Description and Status



Description::

1.31 Abstract ::The California Watershed Map (CALWATER version 2.0)

is a set of standardized watershed boundaries meeting standardized

delineation criteria.  The hierarchy of watershed designations consists

of four levels of increasing specificity: Hydrologic Region (HR),

Hydrologic Unit (HU), Hydrologic Area (HA) , and Hydrologic Sub-Area (HSA).

The primary purpose of Calwater is the assignment of a single, unique

code to a specific watershed polygon.  While there are 987 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, and not all

Hydrologic Areas are subdivided into Hydrologic Sub-Areas.  Therefore,

a nominal count of watershed codes in Calwater 2.0 is:



Hydrologic Regions:    10

Hydrologic Units:     182

Hydrologic Areas:     462

Hydrologic Sub-Areas: 622



1.32 Purpose::Mapping, reporting, and statistical analysis of water

resources, water supply, water quality, wildlands, agriculture, soils,

forests, rangelands, fish habitat, wildlife habitat, cross-referencing

state and federal hydrologic unit or watershed codes and names.



1.33 Supplemental Information::



POLYGON ATTRIBUTE TABLE (.PAT)



 COL  ITEM NAME   WIDTH  TYPE N.DEC  DESCRIPTION

   1  AREA        18     F     5     Area of polygon, square meters

   9  PERIMETER   18     F     5     Perimeter of polygon, meters

  17  CALW20#      4     B     -     Polygon Attribute Table record number

  21  CALW20-ID    4     B     -     User-assignable identifier

  25  IDNUM        8     N     2     ID NUMber of watershed (SWRCB/RWQCB)

  33  HRC          2     C     -     Hydrologic Region Code (DWR)

  35  HBPA         2     C     -     Hydrologic Basin Planning Area (SWRCB)

  37  HR           2     I     -     Hydrologic Region (1->10)

  39  RB           1     I     -     Regional water qual.cont. Board (1->9)

  40  HU           2     I     -     Hydrologic Unit (00->~80)

  42  HA           1     I     -     Hydrologic Area (0->9)

  43  HSA          1     I     -     Hydrologic Sub-Area (0->9)

  44  RBU          5     I     -     Integer ID of HU: Aggregate HR,RB,HU

  49  RBUA         6     I     -     Integer ID, HA: Aggr. HR,RB,HU,HA

  55  RBUAS        7     I     -     Int. ID, HSA: Aggr. HR,RB,HU,HA,HSA

  62  HRNAME      35     C     -     Hydrologic Region Name

  97  HUNAME      35     C     -     Hydrologic Unit Name

 132  HANAME      35     C     -     Hydrologic Area Name

 167  HSANAME     35     C     -     Hydrologic Sub-Area Name

 202  ACRES        4     F     1     Acreage of watershed polygon

 206  CU           8     I     -     Cataloging Unit (Fed. HUC), overlap #1

 214  CUNAME      48     C     -     Cataloging Unit name, overlapping CU #1

 262  CU2          8     I     -     Cataloging Unit, overlapping CU #2

 270  CU3          8     I     -     Cataloging Unit, overlapping CU #3



Projection: Albers conic equal-area, standard Teale parameters



 Datum:                       NAD 27

 Projection:                  Albers

 Units:                       meters

 1st Std. Parallel:           34 00 00

 2nd Std. Parallel:           40 30 00

 Longitude of Origin:         -120 00 00

 Latitude of Origin:          00 00 00

 False Easting (X shift):     0

 False Northing (Y shift):   -4,000,000



NOTE: This text file is prepended to the standard ARC/INFO log file

calw20/log, which contains the coverage's processing history.



Lookup Table of California Hydrologic Region Names and Codes



Codes for Hydrologic Regions and other administrative entities are

cross-referenced in the table below.  Ten Hydrologic Regions are

coded numerically by DWR, whereas there are nine Regional Water Quality

Control Boards, with offices in twelve Hydrologic Basin Planning Areas

(HBPA).  DWR identifies three HRs in the Central Valley to SWRCB's one

"Region", and SWRCB identifies three RWQCBs in DWR's one South Coast HR.

The two-letter abbreviations SR and SB both refer to the Sacramento

River basin.  Other single-letter codes are used in DWR Bulletin 130-85

"Hydrologic Data 1985", and other DWR publications.



Federal Hydrologic Unit Codes (4-digit HUC) Sub-Region codes and names

are also provided.  Note that some state designations map to more than

one federal designation.  More detailed HUC designations terminate

with the 8-digit HUC, the Cataloging Unit (CU) (USGS 1986, Water Supply

Paper 2294).  Detailed, polygon-by-polygon lookup is also possible with

the CU, CU1, CU2, etc codes in the ARC/INFO Polygon Attribute Table above.



KEY to Table



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, Grd.Water)

HRC:  DWR Hydrologic Region code (2-letter name abbreviation, var. pubs.)

HBPA: SWRCB Hydrologic Basin Planning Area (2-letter name abbreviation)

SUBR: USGS Hydrologic Unit Code (HUC) Sub-Region; incl. 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)



Details on the Polygon-by-Polygon Lookup Information by Steve Flatt,

Teale GIS Solutions Group, andy@teale.ca.gov; revised by pveisze.



-- begin details --



IDNUM TO HUC CROSSWALK



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 is only one CU code listed for a given Calwater watershed

code, that CU overlaps at least 80% of the Calwater watershed.



Where there are two CU codes (CU and CU2) listed for a given Calwater

code (only 19 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 4 watersheds fit this criterion), 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.  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)



Count, RBUAS, Name (Remarks) ('' means no name)



5 331610 - San Miguel Island (Channel Islands)

  HSANAME = ''

6 440610 - Anacapa Island (Channel Islands)

  HSANAME = ''

3 440630 - Santa Barbara Island (Channel Islands)

  HSANAME = ''

2 440813 - Point Mugu Lagoon (Has a separation)

  HSANAME = Point Mugu Lagoon

6 484515 - Los Angeles / Santa Ana border (county line split)

  HSANAME = Central (Split)

2 484562 - Los Angeles / Santa Ana border (county line split)

  HSANAME = La Habra (Split)

2 551425 - Below Folsom Lake - groundwater line split

  HSANAME = Linda Creek

2 654241 - Split by groundwater line

  HSANAME = Unknown

2 960942 - Split by California - Nevada border

  HSANAME = Shoshone



Count, RBUA, Name (Remarks)



5 33161 - San Miguel Island (Channel Islands)

  HANAME = San Miguel Island

6 44061 - Anacapa Island (Channel Islands)

  HANAME = Anacapa Island

3 44063 - Santa Barbara Island (Channel Islands)

  HANAME = Santa Barbara Island

6 48451 - Los Angeles / Santa Ana border (county line split)

  HANAME = Lower San Gabriel

2 48456 - Los Angeles / Santa Ana border (county line split)

  HANAME = Anaheim

2 65424 - Split by groundwater line

  HANAME = Panoche Creek

2 96094 - Split by California - Nevada border

  HANAME = Amargosa Desert



Count, RBU, Name (Remarks)



2 1102 - Split by California - Oregon border

  HUNAME = ROGUE RIVER

7 3316 - San Miguel, Santa Rosa, Santa Cruz Islands (Channel Islands)

  HUNAME = SANTA BARBARA CHANNEL ISLANDS

12 4406 - The rest of the Channel Islands

  HUNAME = SAN PEDRO CHANNEL ISLANDS

2 4481 - Los Angeles / Santa Ana border (county line split)

  HUNAME = SANTA ANA RIVER

2 4845 - Los Angeles / Santa Ana border (county line split)

  HUNAME = SAN GABRIEL RIVER

2 6542 - Split by groundwater line

  HUNAME = MIDDLE WEST SIDE



Count, RB, Name (Remarks)  (RB = Regional Water Quality Control Board)

8 3 - Channel Islands

  RBNAME = Central Coast (CC)

13 4 - Channel Islands

  RBNAME = Los Angeles (LA)



Count, HR, Name (Remarks)  (HR = DWR Hydrologic Region)



8 3 - Channel Islands

  HRNAME = Central Coast

13 4 - Channel Islands

  HRNAME = South Coast



-- end details --



1.34 Time Period of Content::1978 - 1998.09.21



1.35 Progress::Watershed boundary revisions by Regional Water Quality

Control Boards and the U.S. Forest Service in progress.

See Data Contact below.



1.36 Maintenance and Update Frequency::as needed



1.4 Geographic Content::



1.41 Quads::

1.42 Lat/long::

1.43 Calwater:: self, version 2.0, California, statewide

1.44 County:: all

1.45 Other:: Interagency watershed boundaries



1.5 Keywords::California, water, map, watershed boundaries, hydrologic unit

codes, river basin names, statistics, water quality, planning



1.6 Constraints



1.61 Access Constraints::none

1.62 Use Constraints::none



2.0 Data Quality Information::

The following comments are subjective remarks:

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.



2.1 Scale::1:24,000



3.0 Data Location

3.1 Storage Location::Teale GIS Solutions Group and

                      Department of Fish and Game



3.2 OnLine Linkage URL::ftp://maphost.dfg.ca.gov/outgoing/itb/calwater



4.0 Metadata Reference Information



4.1 Metadata date::1998.09.21  (September 21, 1998)

4.2 Metadata Contact::Paul Veisze

4.3 Metadata Contacts Organization::California Department of Fish and Game

4.4 Metadata Contacts Address::1416 Ninth Street

                         City::Sacramento

                        State::CA

                     Zip Code::95814

4.5 Metadata Contacts Voice Telephone::916-323-1667

4.6 Metadata Contacts Fax::916-323-1431

4.7 Metadata Contacts Email::pveisze@dfg.ca.gov

4.8 Metadata Standard Name::UC Davis/ICE/CARA

4.9 Metadata Standard Revision::



5.0 Data Contact Information



5.1 Contact Person Primary::Richard Neal

5.2 Contact Organization::California Department of Water Resources

5.3 Contact Address::1416 Ninth Street

               City::Sacramento

              State::California

           Zip Code::95814

5.4 Contact Voice Telephone::916-653-7574

5.5 Contact Fax::916-653-6077

5.6 Contact email::rneal@water.ca.gov



-- begin EXCERPT OF ARC/INFO LOG FILE calw20/log --

19960222 827   1    15     0lee copy cal0 /tlib3/cawastat

199602221529   0     0     0lee ARCEDIT /TLIB3/CAWASTAT

19960223 814   5    72     0mark build cawastat poly

...

199610151630   1     8     0lee  COPY /g3/calwa/cawastat /temp9/calwa/cal0

19961016 839   0     8     0lee copy cal0 /g3/calwa/cawastat

19961112 939   1     8     0vwong  COPY /g3/calwa/cawastat /temp9/calwa/cal0

199611121016   1     9     0vwong copy cal0 /g3/calwa/cawastat

199611121032   0     0     0vwong ARCEDIT /G3/CALWA/CAWASTAT

199612031646  38  1533     0vwong build cawastat poly

19961204 818   0     8     0vwong  COPY /g3/calwa/cawastat /temp9/calwa/cal0

19961204 908   1     9     0vwong copy /temp9/calwa/cal0 cawastat

199612091256   0     0     0vwong ARCEDIT /G3/CALWA/CAWASTAT

...

199702261025   0     0     0andy ARCEDIT /G3/CALWA/CAWASTAT

19970304 927   2    79     0andy build cawastat poly

...

19970605 901   1    10     0andy copy cawastat cw_work

199706091136   0     0     0andy ARCEDIT /S2/DWR/CW/CW_WORK

199706091139   2    85     0andy build cw_work poly

...

199803181043   3   159     0andy export cover /proj/calw20/cw/cw_work cw22_dft none

199809211108   0     0     0andy ARCEDIT J:\CALW20\CW\CW_WORK

199809211114   2    30     0andy build cw_work poly

...

199809211146   0     0     0andy ARCEDIT J:\CALW20\CW\CW_WORK

199809211151   4    56     0andy build cw_work poly

199809211326   0     0     0andy labelerrors cw_work

199809211327   0    13    15andy dissolve cw_work cw_hsa r1//disitm net

...

199809291021   0     0     0pveisze rename cw_hsa calw20

-- end of excerpt calw20/log --

-- end of file calw20.txt --




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