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 -- Back to Top of Page © 2000 State of California. 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